Exam 1 Flashcards

Question

A30. In which of the following would a Lightning cable MOST likely be used?

Answer 1

The Answer: D. Charge a mobile device The Lightning interface is a proprietary interface used exclusively on mobile devices from Apple. The Lightning interface is a common connection for data transfers and power charging for most Apple mobile devices. The incorrect answers: A. Connect a server to a display monitor Although there are video output adapters available for Lightning connectors, these options are currently only available for Apple's phones and tablets and is not used on standalone computers or servers. B. Increase the available memory of a device Although there are options to provide external storage using a lightning connection, the memory used in an Apple mobile device is limited to the installed internal RAM (Random Access Memory). C. Remotely control a mobile device Although there are remote control options available for Apple devices, these solutions use an existing network connection and do not use the Lightning interface.

Answer 2

The Answer: A. Create an IP reservation on the DHCP server A DHCP (Dynamic Host Configuration Protocol) server will automatically assign IP (Internet Protocol) addresses to devices on the network from an available pool. This means that the IP address for a device may change over time based on the IP addresses that are currently available in the pool. To force the same IP address assignment each time, the network administrator can create an IP reservation in the DHCP server that will associate a specific IP address to the MAC (Media Access Control) address of the laptop. The incorrect answers: B. Administratively configure the laptop’s MAC address The MAC address of a device will rarely need to changed through an administrative configuration, and administratively configuring the MAC address will not permanently assign a particular IP address. C. Use APIPA addressing APIPA (Automatic Private IP addressing) can provide limited networking when a DHCP server is not available, but APIPA addressing does not provide any static or permanent IP addressing on a device. D. Assign the laptop to a static IP VLAN VLANs (Virtual Local Area Networks) are commonly used to segment the network into individual broadcast domains. Assigning a device to a particular VLAN does not provide a method of static or permanent IP addressing on a device.

Answer 3

The Answer: C. Punch-down tool A punch-down tool is used to firmly "punch" a wire into a wiring block, such as a 110 block. These blocks are usually located in a wiring closet or on the back of a patch panel. The incorrect answers: A. Crimper A crimper is used to fasten the modular connector onto the end of a cable. For Ethernet, a crimper fastens the RJ45 connector used by the workstation or laptop. B. Multimeter A multimeter can be used to check for voltages or continuity, but it won't help fasten wires to a 110 block. D. Cable tester Cable testers can identify the wire map on a cable to ensure that the punch-down or crimping process has been performed properly. After punching down this connection, the technician could use a cable tester to validate that all of the wires are now properly connected.

Answer 4

The Answer: C. The DHCP server is down If a DHCP (Dynamic Host Configuration Protocol) server is not responding, then the local workstation will configure itself with an APIPA (Automatic Private IP Addressing) address. The usable APIPA addresses are in the range between 169.254.1.0 through 169.254.254.255. An APIPA address is a link-local address, so network communication is limited to the local IP subnet. The incorrect answers: A. The subnet mask is not correct The subnet mask has been configured through APIPA, and the mask of 255.255.0.0 is normal for an APIPA configuration. The subnet mask is not the cause of the browsing issues on the workstation. B. The Internet provider is experiencing a temporary outage In this example, the issue is related to the APIPA link-local address assigned to the workstation. Although the Internet provider could potentially be experiencing issues, it would not be the most likely cause of the problem. D. The wireless adapter is not working properly The wireless adapter has configured itself and assigned a link-local APIPA address, so it appears that the adapter itself is functional.

Answer 5

The Answer: D. Upgrade the system RAM, and E. Install Windows guest VMs The easiest way to use multiple operating systems on a single machine is to run them as virtual machines. Although there's plenty of storage space for multiple virtual machines, the 4 GB (Gigabytes) of RAM (Random Access Memory) on the host computer is too small to support multiple Windows operating systems at the same time. Once the memory upgrade is complete, it's a relatively easy process to install the guest virtual machines on the existing hard drive. The incorrect answers: A. Install a KVM A KVM (Keyboard, Video, and Mouse) controller is used to consolidate the keyboard, mouse and video monitor for multiple devices. In this example, all of the operating systems will be running on a single device. B. Install an additional hard drive The available hard drive is large enough to support the installation of multiple virtual machines. C. Create a Windows Recovery Environment boot drive A Windows Recovery Environment drive is useful for troubleshooting the existing Windows installation, but it won't help with multiple operating systems.

Answer 6

The Answer: B. Subnet mask Subnet masks are used by the local device to determine what subnet it's connected to. Subnet masks are a series of binary ones that are used to "mask" the subnet address from the host address. Instead of representing this mask in binary, it's almost always shown in decimal form. Common decimal representations of subnet mask start with 255, such as 255.255.255.0. The incorrect answers: A. Default gateway A default gateway on an internal lab network will most likely be using private IP (Internet Protocol) addressing that starts with 10, 172, or a 192. IP addresses cannot start with an octet of 255. Therefore, a default gateway in this environment would not have an IP address of 255.255.255.0. C. DNS server Since an IP address cannot start with the octet of 255, this address would not be associated with a DNS server. D. IP address The IP address of a device cannot start with 255. It's most likely that a device in a lab would use an internal IP address that starts with an octet of 10, 172, or 192.

Answer 7

The Answer: A. PAN A PAN (Personal Area Network) is designed for a small area and usually an individual person. Bluetooth devices such as headsets, speakers, and automobile connections are considered PANs. The incorrect answers: B. WAN A WAN (Wide Area Network) usually connects locations over a long geographical distance. A network link between cities, states, or countries would be considered a WAN connection. C. LAN The network in your building or home is a LAN (Local Area Network). If you're connected to an Ethernet or 802.11 wireless network, then you're connected to a LAN. D. MAN A MAN (Metropolitan Area Network) is a bit bigger than a LAN, but smaller than a WAN. Connecting sites in the same city or metropolitan area would use a MAN link.

Answer 8

The Answer: C. Connect the new phone to the corporate Exchange server Microsoft Exchange manages email, calendar events, and contact information in a single database. Using this central database, Exchange can synchronize all of this information to both iOS and Android smartphones. The incorrect answers: A. Use a Windows-based migration tool Since most smartphones can synchronize email, calendar, and events to an existing email platform, a third-party migration tool is unnecessary. B. Save the Android phone data as a CSV file Most mobile phones do not provide data in CSV (Comma Separated Value) format. Even if the Android data was available, there's no common way to import that data into an iOS device. D. Use a USB-to-Lightning cable Connecting the phones to another device or to each other would not migrate any data between the devices.

Answer 9

The Answer: C. Disassemble the laptop case and document the process Although the operating system driver can sometimes provide details about what's inside, they often can hide details about the specific hardware. The only way to know the exact make and model of the Bluetooth adapter is a physical examination. Some laptops are easier to open than others, so it's useful to document the process used to gain access to the Bluetooth hardware. The incorrect answers: A. Research online forums Online forums are useful for troubleshooting technical issues, but they won't provide information on pricing or be able to determine the exact make and model of the Bluetooth adapter. B. Determine the purchase price of a USB to Bluetooth adapter In this example, the user would like to replace the existing internal adapter. An external USB to Bluetooth adapter may provide similar functionality, but it would not have the same "invisible" footprint as the internal adapter. D. View the Bluetooth information in Network settings The operating system is often quite good at providing hardware information, but the only way to know if it's providing an accurate representation of the installed Bluetooth adapter is to physically view the actual hardware.

Answer 10

The Answer: B. RAID 5 with 10,000 RPM, 5 TB drives The question is focused on three requirements; performance, drive space, and redundancy. This option provides the highest number of RPMs (Revolutions Per Minute), the RAID 5 (Redundant Array of Independent Disks) redundancy, and enough storage to support more than 8 TB (terabytes) of drive space. The incorrect answers: A. RAID 10 with 5,400 RPM, 8 TB drives Although RAID 10 would provide the redundancy requirement and a series of 8 TB drives would more than cover the storage requirement. However, the slow throughput of 5,400 RPM drives would not provide the performance requirement. C. RAID 1 with 7,200 RPM, 8 TB drives RAID 1 mirroring provides the redundancy required, and 8 TB drives provide plenty of storage space. However, the 7,200 RPM specification is slower than the 10,000 RPMs available in answer B. D. RAID 0 with 15,000 RPM, 5 TB drives 15,000 RPM drives provide a very fast throughput, and multiple 5 TB drives would provide more than 8 TB of available space. However, RAID 0 striping does not provide any redundancy if a drive was to fail

Answer 11

The Answer: B. Bluetooth Bluetooth can be used to tether the laptop to the smartphone, and the smartphone can then be used to allow access to resources on the Internet. The incorrect answers: A. LTE LTE (Long-Term Evolution) may be used by the smartphone for Internet data communication, but the laptop does not communicate using LTE. C. NFC NFC (Near Field Communication) is a short-distance wireless technology that is commonly used for payment systems or in-person information exchange. NFC is not used for tethering a laptop to a phone. D. IR IR (Infrared) is often used to control other IR devices, such as entertainment centers or televisions. IR is not used during the tethering process.

Answer 12

The Answer: A. Fn The laptop function key (Fn) is usually combined with another laptop key to control features such as volume, wireless adapter functionality, and video output. This allows the laptop manufacturers to add additional functionality to the laptop keyboard without adding any physical keys or switches. The incorrect answers: B. Alt The Alt (Alternate) key is a modifier that's commonly used in applications to provide secondary features. The Alt key is not commonly used to control laptop hardware. C. Windows The Windows key is used as a shortcut to Windows-specific operating system features. The Windows key is not commonly used to control laptop hardware. D. Ctrl The Ctrl (Control) key is very similar in use to the Alt key. Applications commonly used the Ctrl key as a modifier to enable shortcuts or secondary features. The Ctrl key is not commonly used to control laptop hardware.

Answer 13

The Answer: C. Smart watch Wearable technologies are devices that can be worn all day as an extension of a phone and body. Common wearable technologies would be smart watches and fitness monitors. The incorrect answers: A. Virtual reality Although it's true that many virtual reality headsets are devices that are worn or placed on the head, they are not part of the device category of wearable technology. Wearable products are designed to be worn all day, and virtual reality headsets don't fit that characteristic. B. e-Reader An e-Reader is a hand-held device that is commonly used for reading books or magazines. e-Readers aren't worn on the body, so they don't qualify as a wearable technology. D. Smart phone A smart phone is technically not a wearable technology, although it's common for someone to carry their phone around throughout the day. Since the phone is often used while not connected to the body, it would not qualify as a wearable technology.

Answer 14

The Answer: C. Reset the page counter The page counter is a helpful metric to determine how much the printer is used, which in turn determines when the next maintenance should be scheduled. After performing the current maintenance cycle and verifying the printer's operation, the page counter should be reset so that the next maintenance time-frame can be properly estimated. The incorrect answers: A. Examine the feed rollers Examining or replacing the feed rollers is a normal part of the maintenance process, but it would not often be the last step in the maintenance process. B. Wait until the fuser unit cools down and replace it Fusers are commonly replaced during maintenance, but this would not be the last step in the process. D. Replace the power cord Replacing the power cord is not commonly part of the maintenance process. The only time the power cord would need replacing is if it has been damaged. Power cords do not generally wear out or need replacement.

Answer 15

The Answer: A. Purchase a system that is configured just above the hardware requirements for the highest-end operating system. Create separate VMs for each operating system. Creating virtual machines for these tests would be a great way to minimize hardware costs, and the machine used for the testing should be able to properly virtualize the testing OS while the host OS is running. Purchasing a system that is slightly more powerful than the highest-level operating system configuration should cover any technical requirements. The incorrect answers: B. Purchase individual test computers that match the hardware requirements for each OS. Install different operating systems on each test computer. Since one of the project requirements was to minimize the hardware cost, purchasing separate computers for all of these systems would be much more expensive than purchasing a single computer and virtualizing the operating systems.

Answer 16

The Answer: C. 802.11ac 802.11ac operates in the 5 GHz band and can provide almost 7 gigabits per second of total throughput. The incorrect answers: A. 802.11n Although 802.11n can operate in the 2.4 GHz band and the 5 GHz band, the maximum theoretical throughput of 802.11n is 600 megabits per second. B. 802.11g 802.11g operates in the 2.4 GHz band exclusively, and can provide a maximum throughput of only 54 megabits per second. D. 802.11a 802.11a operates in the 5 GHz band, but the total throughput of 802.11a is 54 megabits per second.

Answer 17

The Answer: C. The photosensitive drum is damaged A scratched photosensitive drum would cause a line to appear down the printed page as the toner sticks to the scratched part of the drum. Some printers allow individual drums to be replaced, and others require the entire toner cartridge with drum to be replaced. Once the scratched drum is replaced, the black line will no longer appear on the printer output. The incorrect answers: A. The fuser is damaged The fuser provides the heat and pressure required to permanently affix the toner to the printed page. The fuser would not commonly add additional black lines to the printer output. B. The printer is out of memory The laser printer will render an entire page in memory before printing, and running out of memory will cause the output to be truncated or missing. If only a portion of the page is printing, then the printer is most likely out of memory. D. The toner is low If the printer output was very faint or difficult to read, then the toner levels may be low. Most printers will provide a message when it's time to replace the toner cartridge.

Answer 18

The Answer: A. NFC NFC (Near Field Communication) is designed to transfer small amounts of data wirelessly over a limited area. It's common to use a smart phone or smart watch with a credit card terminal to pay for goods or services. The incorrect answers: B. Infrared Infrared, or IR, is included on many smart phones, tablets, and smart watches, but it's used mostly for controlling other infrared devices such as television and audio components. Infrared would not be used during the purchase process. C. Cellular Cellular networks are used for voice and data communication, but those cellular networks are not part of the in-store purchase process. D. Bluetooth Although Bluetooth supports many different features, it's not used during the checkout process in a store.

Answer 19

The Answer: B. Internet bandwidth Cloud-based services work almost exclusively over the network, and file synchronization services will require additional bandwidth to process constant updates and changes over the network. The incorrect answers: A. Local storage capacity Local storage is certainly an important consideration, but cloud-based file storage and synchronization will require network bandwidth as the primary resource. C. CPU utilization The CPU processes required to support a cloud-based file storage or file synchronization service are relatively small on the local devices. D. System memory The memory required to support a cloud-based file storage application is relatively small compared to most applications.

Answer 20

The incorrect answers: B. Toner cartridge is low A low toner cartridge will cause the output to appear faded and difficult to read. A low toner cartridge will not cause the output to smear when touched. C. Photosensitive drum has been scratched A scratched drum will cause lines and other stray marks to appear on the printed page. The toner sticks to the scratches and is transferred to the final page output. D. Incorrect printer driver is installed The printer driver will format the output into a page description language that the printer can understand. An incorrect driver would not cause the printer output to smear. E. Printer cleaning process is not working If the cleaning process is not working, then a "ghost" of previous passes around the drum will appear on different parts of the printed page. It's common that poor cleaning will cause multiple faded versions of a page to appear in the printed output. A non-working cleaning process would not cause the printer output to smear, however.

Answer 21

The Answer: D. Check the docking station network cable The Internet access on the laptop appears to be working properly on the wireless network, but the docking station connection would use a wired Ethernet connection. If everything else is working properly, then the issue would most likely be associated with the Ethernet interface in the docking station. The incorrect answers: A. Replace the docking station power supply If other docking station features were not working, then there could be an issue with the power connection on the docking station. In this situation, all of the other features appeared to be working properly when connected to the docking station. B. Upgrade the laptop BIOS A BIOS upgrade is a significant change, and it's rarely the first step in the troubleshooting process. C. Replace the docking station Although it's certainly possible that the docking station could be faulty, there are no obvious issues with other features. Before replacing the entire docking station, it would be useful to check the individual components associated with the problem.

Answer 22

The Answer: B. SSO SSO (Single Sign-on) is a method of centralizing authentication to a common database. This allows the users to authenticate once with a single username and password, and those credentials will be used across all services. The incorrect answers: A. Strong passwords Although a strong password is always a best-practice, including a strong password policy for an application does not simplify the authentication process. C. VPN A VPN (Virtual Private Network) is a method of encrypting data between two devices, and it's commonly used to create an encrypted tunnel over an untrusted network. VPNs don't simplify the authentication process. D. SSL SSL (Secure Sockets Layer) is a common encryption method used to protect data sent and received from a web browser. SSL doesn't simplify the authentication process.

Answer 23

The Answers: B. Hard drive space and D. System RAM Six virtual machines will require enough hard drive space to install all six operating systems, so it will be important to have enough free storage space. Running more than one operating system at a time on a computer also requires additional memory, so having enough system RAM is also an important consideration. The incorrect answers: A. Video adapter RAM The question didn't specify any unique requirement for video, so a requirement for video adapter RAM would not be the most important in this configuration. C. Gigabit NIC Although gigabit network connections are relatively standard, nothing in the requirements specified a need for high-speed network connectivity. E. Enhanced audio The configuration for this test system did not specify any enhanced audio requirement.

Answer 24

The Answer: B. Category 6 The physical characteristics of networking cables are separated into categories. A category 6 cable can support a ten gigabit per second 10GBASE-T network to a distance of thirty-seven to fifty-five meters. The incorrect answers: A. Category 5 Category 5 copper cables can support a one gigabit per second 1000BASE-T network up to one hundred meters. Ten gigabit per second speeds are not support over category 5 cable. C. Category 5e Category 5e (enhanced) is a minor update to category 5, and the Ethernet standards supported for a category 5e cable are identical to those of a category 5 cable. Therefore, category 5e copper cables can support a one gigabit per second 1000BASE-T network up to one hundred meters in length. D. Category 6A Category 6A (augmented) cables can support ten gigabit per second 10GBASE-T connections to a distance of one hundred meters.

Answer 25

The Answer: C. Check the DNS configuration One of the most noticeable of the IP (Internet Protocol) configuration settings was that the DNS (Domain Name Service) server IP address was configured to be the same as the local device. Since DNS servers are commonly separate (and often remote) devices, it would be unusual to see a DNS configured with the same IP address of the local device. The next step should be to confirm the DNS settings with the local network administrator. The incorrect answers: A. Check for duplicate IP addresses No mention was made of an duplicate IP address warning, and some of the ping tests worked properly to devices on the local subnet. B. Replace the Ethernet cable Since the ping tests worked locally, we can conclude that the Ethernet cable is most likely not related to this issue. D. Replace the cable modem The cable modem is most likely the default gateway, and a ping of that IP address worked properly. More tests would need to be performed before replacing any hardware.

Answer 26

The Answer: A. Ethernet A SOHO (Small Office Home Office) with a DSL (Digital Subscriber Link) modem will commonly connect to the modem using an Ethernet cable connection. The incorrect answers: B. Lightning Apple Lightning cables are used to connect mobile devices to power or external peripherals. Lightning connections are not used for DSL links. C. Coaxial Coaxial cable is commonly used for the cable modem connection to the Internet service provider. D. USB-C USB-C is used for connectivity to peripherals or other devices, but it is not commonly used for network links. The large majority of wired network connections inside of a network will use Ethernet cables.

Answer 27

The Answer: A. The motherboard battery has discharged The battery on a motherboard is used to maintain the date and time configuration when the computer is not connected to a power source. If the battery has discharged, the computer will not be able to maintain the proper time and an error message will appear during startup. The incorrect answers: B. Windows update has rebooted the computer Rebooting the computer will not cause the date and time to be reset. C. Daylight Saving Time occurred during the weekend Daylight Saving Time does not cause the computer's date and time to be reset, and any changes to the clock in Windows will be reflected in the BIOS. D. The BIOS was just upgraded A BIOS upgrade does not commonly reset the date and time on the BIOS clock.

Answer 28

The Answers: B. The replacement screen is not a touch screen, and E. The digitizer is not properly connected When replacing a touch screen display, it's important to make sure the replacement is also a touch screen unit. The two look almost identical, so it would be a common mistake to accidentally install the wrong hardware. After installation, a separate connection is often required to enable the digitizer. If the display panel is the correct hardware, then it's important to check that all of the cables are connected, especially the cables specific to the digitizer features. The incorrect answers: A. The digitizer is not calibrated An uncalibrated digitizer would work, although the input locations would not be accurate. Most modern digitizers do not require the user to perform any calibration routines. C. The BIOS needs to be updated Since this is a replacement unit, we can assume that any BIOS (Basic Input Output System) settings associated with the digitizer are still valid. A BIOS upgrade would not be required to enable digitizer functionality.

Answer 29

The Answer: A. Resource pooling Resource pooling places all of the computing resources in one place, and then distributes from the pool when needed. A VM (Virtual Machine) manager using a portion of available physical memory is taking advantage of resource pooling. The incorrect answers: B. Rapid elasticity Rapid elasticity is the characteristic of scaling up or down cloud resources with demand. More resources will be made available during busy times, and those resources will be seamlessly removed when the demand is low. C. Metered Metered resources are measured based on usage. As more information is uploaded, stored, and downloaded, the costs are tracked and billed accordingly. D. On-demand Cloud computing allows the users to create or remove resources at any time, or on-demand. This flexibility allows organizations to quickly react to changes, deploy updates, and remove excess resources.

Answer 30

The Answer: A. Verify the wireless signal strength Since the wired devices are working properly, the troubleshooting process should focus on the wireless network. The connectivity is also intermittent, which means that the network is operating normally during certain periods. This would move the focus from the network configuration to an availability issue. The incorrect answers: B. Check the ARP table on the default gateway Since the wired devices are working normally and the network is intermittently working, the overall configuration of the network would not be the first place to start the troubleshooting process. C. Confirm the operation of the DHCP server An inoperable DHCP (Dynamic Host Configuration Protocol) server would cause the local devices to automatically configure a link-local IP address. Since there are no reports beyond general connectivity issues and DHCP server outages are relatively unusual, checking on the DHCP server would not be the next step in the troubleshooting process. D. Perform a wire map on the network drops The issue reported in this scenario is relating to the wireless network only. The wired devices are not experiencing any issues with connectivity, so obtaining a wire map would not be the next troubleshooting step.

Answer 31

The Answer: D. Perform a full backup of the server A clicking noise indicates some type of hardware issue with the computer, so the first step would be to confirm that a recent backup is available for all of the data on this system. If the computer fails completely, at least the data will be secure. The incorrect answers: A. Replace the motherboard Motherboards don't tend to have any moving parts, so a clicking noise would probably not be related to the motherboard. There's also not enough information in this question to definitively identify the source of the noise, so replacing hardware would not commonly be the first step. B. Power the system off and back on Although software can often be corrected with a reset, hardware isn't commonly fixed with a power cycle. Before making any changes, it would be useful to confirm a good back exists and perform more investigation regarding the noise. C. Replace the hard drive If the sound was related to a problem with the hard drive, it would be even more important to have a good backup of the data. E. Replace the power supply There's no evidence that the power supply is faulty, but it would be useful to investigate the source of the noise after backing up the data.

Answer 32

The Answer: B. The power supply is faulty If the 12 volt line from the power supply to the motherboard is showing 6 volts, it's likely a problem with the power supply itself. A power supply replacement should be the next troubleshooting step for this system. The incorrect answers: A. The components that use 12 volt power are faulty Even if the components are faulty, the power supply should still be providing 12 volts for those devices. C. The wall outlet voltage does not match the power supply Many power supplies can automatically switch to the correct input voltage from the wall outlet. A mismatch would result in a non-working system or damage to the computer's components. D. The motherboard is faulty A bad motherboard would not prevent the power supply from operating at the correct voltage.

Answer 33

The Answer: B. Collate The printing of multiple copies in their proper order is called collating the output. If the output was not collated, all of the page one copies would print, then all of the page 2, etc. The incorrect answers: A. Duplex Duplex refers to printing on both sides of the page. Many printers will have an option for duplexing that will print on both sides without manually flipping the pages over. C. Quality The quality settings on a printer will change the resolution, color settings, or grayscale options. The quality settings will not change the order of the pages during the output process. D. Orientation The orientation of the paper refers to the portrait or landscape setting. Changing the orientation will not change the order of the pages during the printing process.

Answer 34

The Answer: D. SSID broadcasts have been disabled The name of the wireless network, or SSID (Service Set Identifier) is normally broadcast to all nearby devices. If the SSID broadcasts are administratively disabled, the network name will not appear in the dropdown list of available wireless networks. The incorrect answers: A. There is interference with the wireless signal The wireless network name is broadcast many times a second, so spurious interference would still allow some SSID advertisements to be seen by remote devices. B. The laptop has been assigned an APIPA address APIPA (Automatic Private IP Addressing) is an automated method of assigning IP addresses when a DHCP server is not available. An APIPA address would not limit or filter SSID broadcasts from wireless access points. C. The user does not have permission to use the wireless network The wireless authentication process occurs after a device has attempted to connect to the wireless network. An authentication issue would not cause the wireless network name to be filtered prior to connecting.

Answer 35

The Answer: A. Check the SMTP settings If you're sending an email message from an email client, you're commonly using SMTP (Simple Mail Transfer Protocol). There are three SMTP configuration settings that are important; the SMTP server name or IP address, the SMTP username, and the SMTP password. The incorrect answers: B. Check the IP address configuration If there were problems with the IP configuration, the manager would not be able to receive any email messages. In this question, the issue does not appear to be related to the IP address configuration. C. Send a test message using web-based email Sending an email message over web-based email would effectively bypass the local email client and would not help troubleshoot the local issues. D. Check the IMAP settings IMAP (Internet Message Access Protocol) is used for receiving email and not for sending email. In this example, the manager was able to receive messages, so the IMAP settings would most likely be working properly.

Answer 36

The Answer: D. Verify the network printer name in the application We know that the printer is working normally because other people are able to print successfully. This also means that the spooling process is working and that the print server is successfully queuing the print jobs. Given the other options, it's most likely that the user is directing the print job to a different printer. The incorrect answers: A. Power cycle the printer We know that the printer is working for other users, so power cycling the printer would not resolve this particular issue. B. Restart the print spooler Other users are printing to the network printer, so we know that the print spooler is working properly. Restarting the spooling would not resolve this issue. C. Perform a test print from the printer console A test print from the printer console would verify that the printer itself is working properly, but we already know this because of the print jobs sent by other users on the network.

Answer 37

The Answer: D. WAN A WAN (Wide Area Network) connects LANs across a long geographical distance. Once the link extends past the local city area, the connection would be considered a WAN link. The incorrect answers: A. LAN LANs (Local Area Networks) are located in the same building or group of buildings that are located nearby. Ethernet and 802.11 wireless networks are generally considered to be LAN connections. B. PAN A private network designed for an individual is a PAN (Personal Area Network). Bluetooth, infrared, and near field communication links are categorized as PAN connections. C. MAN Sometimes, a local network provider can link together sites in the same city area. These connections would be MANs (Metropolitan Area Networks).

Answer 38

The Answer: C. Connect the IoT devices to a DMZ One of the concerns around IoT (Internet of Things) is that a single exploit of an IoT device can potentially put the entire network at risk. To avoid this issue, it's useful to put IoT devices into their own protected network, such as a DMZ (Demilitarized Zone). This means that if an IoT device was exploited, the attacker would not have any access to the more important devices and services on the rest of the network. The incorrect answers: A. Use WPA2 encryption If the IoT devices are on the same network as everything else, then encryption isn't going to help much when the IoT device is exploited. Once the attacker is in control of the IoT device, they'll be on the same encrypted network as internal servers, storage arrays, and any other important device. B. Configure SSID suppression on the wireless network SSID (Service Set Identifier) suppression will prevent other devices from showing the wireless network on the list of available networks, but it won't provide any additional security if an IoT device is hacked. D. Configure static IP addressing Static IP (Internet Protocol) addressing is sometimes used when devices are required to maintain a particular IP address, but it won't add any additional security if the IoT devices are under the control of an attacker.

Answer 39

The Answer: B. Hypervisor A hypervisor, or virtual machine manager, is the software that manages the virtual platform and guest operating systems. The incorrect answers: A. Shared network address There are many options for a virtual machine, including shared, bridged, and private network addresses. A shared network address is not required to start a virtual machine. C. Virtual switch Like physical switches, virtual switches can be used to provide connectivity and segmentation for virtual machines. A virtual switch is not a requirement to start or use a virtual machine D. Video display Many servers operate without a video display, mouse, or keyboard. These systems are "headless," and a video display is not required to start a virtual machine.

Answer 40

The Answer: B. Disable the cellular radio at work When a mobile provider's network isn't available, a phone will constantly try to reconnect to a cellular network. This reconnection process constantly uses the radio, and subsequently more of the battery is used in the process. To conserve battery life, it would be useful to disable the cellular network connection when outside of a coverage area. The incorrect answers: A. Disable 802.11 Wi-Fi The Wi-Fi network is used at work for office services, so disabling Wi-Fi is not a good option. Since Wi-Fi does not require a constant connection, it's unlikely that the battery usage is associated with the Wi-Fi radio. C. Replace the battery It's possible that the battery in the mobile device could need replacing, but the battery problem doesn't appear to happen while at home. If the battery was the primary issue, the battery would work just as poorly at home as in the office. D. Enable Bluetooth on the mobile device Enabling a feature like the Bluetooth radio would only serve to increase battery usage. If the battery is the biggest concern and no Bluetooth features are in use, it's a better idea to keep Bluetooth disabled.

Answer 41

The Answer: C. The power supply is faulty A faulty power supply could cause a loss of power across all computer systems, and the lack of fans, lights, and output on the display would be the most likely cause given the available options. The incorrect answers: A. The BIOS is configured with a startup password A startup password would not cause the system to power down, and the password prompt would be presented if the computer was powering on. B. The LCD display backlight has failed A failure of the LCD backlight would make it appear that the monitor screen is not working, but the fans and lights would still be working normally. D. The master boot record is corrupted A corrupted master boot record may prevent a system from booting, but the fans, lights, and screen output would still be working properly. E. The boot sector is missing A missing boot sector would not prevent the fans and lights from working properly. The screen would commonly show an error explaining that an operating system was not able to properly start.

Answer 42

The Answer: D. Firewall A firewall is designed to evaluate inbound traffic, compare that traffic to predefined security policies, and then allow or block that traffic from passing through the firewall. Firewalls are common security appliances between an organization's internal network and the Internet. The incorrect answers: A. PoE Switch PoE (Power over Ethernet) switches are used to provide power to Ethernet-connected devices. This allows devices such as access points, cameras, and VoIP phones to connect with a single Ethernet link for both data connectivity and device power. B. Repeater Repeaters are relatively simple devices. Repeaters receive a signal, regenerate that signal, and then resend that signal out another network connection. Repeaters do not make any forwarding decisions and they don't filter based on a set of rules. C. DSL modem DSL (Digital Subscriber Line) networks is a common Internet connection technology provided over the same twisted pair copper used by analog telephone services. A DSL modem allows the end-user to connect their existing network to the DSL network, but the DSL modem does not filter traffic based on a set of access rules.

Answer 43

The Answer: B. Cable Cable television brought cable into everyone's home, and now they include voice and Internet services on the same coax cable. The incorrect answers: A. DSL DSL (Digital Subscriber Line) uses a pair of copper wires to provide Internet access over the same lines as a traditional telephone service. C. ISDN ISDN (Integrated Services Digital Network) was the precursor to DSL, and also used a pair of copper wires to provide high-speed dialup Internet service. D. Dialup Dialup lines traditionally used the same network as the telephone service, and you would only need a modem on each end of the phone line to provide digital communication.

Answer 44

The Answer: C. Establish a theory Once an issue has been identified, it's important to consider all of the possible reasons the problem may have occurred. It's useful to list all possible causes, even those that might not be obvious. The incorrect answers: A. Implement a solution The implementation of a solution would occur after possible theories have been determined and tested. Once a plan of action is created, the solution can be implemented. B. Document findings Once the problem has been resolved, the last step of the troubleshooting process is to document the issue, the resolution, and any other important steps during the process. D. Evaluate results When testing theories for possible fixes, the results of each test should be evaluated to determine if the fix was successful.

Answer 45

The Answer: D. Bluetooth Bluetooth, and any radio-based communication, constantly uses some of the power, and those systems can quickly deplete the battery. If you're not going to be using wireless devices, then it's useful to place the device in airplane mode or disable Bluetooth, 802.11, and cellular radios. The incorrect answers: A. Internal speakers Unless the speakers are currently in use, there's little to no battery used to keep the speakers enabled. Even when the speakers are used, they don't tend to deplete the battery faster than wireless network radios. B. Webcam A webcam may be used intermittently when traveling, but even then there's relatively little battery use when compared to wireless networking. C. Smart card interface A smart card interface in a laptop allows a smart card to be used as an authentication factor. A smart card interface does not constantly use battery power, and it certainly wouldn't use more than Bluetooth or other wireless network communication methods. E. Touchpad A touchpad uses very little power, and it's almost required for use with laptops when traveling.

Answer 46

The Answer: C. Mouse, keyboard, and monitor Cloud-hosted virtual desktops are a type of VDI (Virtual Desktop Infrastructure). Access to the desktop is provided over a remote accessstyle client, and access can be provided from almost any operating system using a low-bandwidth network connection. The client device is usually a thin-client that has a minimum set of resources, a mouse, keyboard, and a monitor. The incorrect answers: A. High-end video cards Cloud-based virtual desktops are being processed on servers in the cloud, so the local thin clients do not require any advanced graphics capabilities. B. Separate Internet connection The communication to the virtual desktops is sending video, keyboard, and mouse updates, and all of this can operate with a minimum of network bandwidth. A separate or dedicated Internet connection is not required. D. Category 6A cabling Category 6A cabling would commonly be associated with very high-speed 10 gigabit per second Ethernet networking. A thin client communicating to a cloud-hosted virtual desktop can operate at relatively low bandwidths.

Answer 47

The Answer: C. The laptop resolution is incorrect An LCD (Liquid Crystal Display) has an optimal resolution that is based on the physical dimensions of the display. If the resolution settings in the operating system don't match the physical display, then the information on the screen may appear blurry or skewed. Configuring the correct resolution in the operating system will commonly resolve this issue. The incorrect answers: A. The LCD display is faulty If the LCD display is showing information (however skewed), then it may not be a hardware failure. Adjusting the operating system's video settings to match the LCD display hardware will often resolve any odd visual display quirks. B. The laptop display adapter is incompatible with the LCD display Most display adapters will include a video output format that would be compatible with most LCD displays. It would be unusual to find an LCD display that would not operate with a specific video adapter. D. The LCD display cable is faulty A bad cable will commonly show flashes of information or intermittent periods of a black screen. A bad cable would not commonly display information in a fuzzy or skewed format.

Answer 48

The Answer: D. RAID 10 RAID (Redundant Array of Independent Disks) is a method of combining storage drives together to add speed and/or redundancy. A RAID 10 array is a nested RAID configuration that creates a mirrored set of RAID 0 drives. As long as only one drive fails in each RAID 0 mirror, the redundancy will remain valid and the user's data will continue to be available. The incorrect answers: A. RAID 1 RAID 1 is also called mirroring, because file blocks are duplicated between two or more physical drives. Losing a single drive in a RAID 1 array will still allow access to the data on the other mirrored drive, but losing two drives would cause the data to be inaccessible. B. RAID 5 RAID 5 is striping with parity, where file blocks are striped across multiple storage drives and one storage drive maintains parity data. Data would still be available after a single drive failure in RAID 5, but two failed drives would cause data loss. C. RAID 0 RAID 0 is also called striping, where file blocks are split across multiple physical drives. However, RAID 0 does not include any redundancy features. A single drive failure in RAID 0 results in data loss.

Answer 49

The Answer: A. WPA2 encryption Configuring WPA2 (Wi-Fi Protected Access II) encryption would prevent unauthorized users from accessing the wireless network and would encrypt the data sent over the wireless network. The incorrect answers: B. SSID suppression Preventing the SSID (Service Set Identifier) from appearing in lists of available wireless networks would not provide any significant security feature. If someone knows the name of the network, they would still be able to connect. C. Static IP addressing Static IP (Internet Protocol) addressing is useful for unique environments that require specific IP address assignments, but assigning IP addresses statically doesn't add any significant security to the network. D. UPnP UPnP (Universal Plug and Play) allows network devices to automatically locate and configure other network devices. Generally speaking, the automatic configuration feature of UPnP makes the network LESS secure. E. MAC filtering Filtering traffic by MAC (Media Access Control) address can be easily circumvented with a packet capture application, so MAC filtering would not be considered a security feature.

Answer 50

The Answer: D. Thermal Of the available options, thermal printers are the quietest. The only moving parts in a thermal printer are the motors that push the paper through the printer, and those motors are small and run almost silently. The incorrect answers: A. Dot-matrix Dot matrix printers are probably the loudest option in this list. The metal pins in a dot matrix print head are impacting the page, and that printing process makes a significant amount of noise. B. Inkjet An inkjet printer's printing process is a bit quieter than a dot matrix printer, but it's not as quiet as thermal printing. The sound of the carriage moving the print heads across the page and the printing process itself would not provide the quietest printing option given the available options. C. Laser A laser printer uses many moving parts, high voltages, and a large motor to print a single page. This process makes a bit of noise, so it wouldn't fit the requirements for the library.

Answer 51

The Answer: D. e-Reader e-Readers are standalone book and magazine reading devices that are often designed with electronic paper or electronic ink technology. The electronic ink screens on the e-Readers are specifically designed for reading text-based content in bright sunlight. The incorrect answers: A. Tablet Although tablets are quite useful for reading books and magazines, the LCD screens in most tablets are not very visible when working in direct sunlight. B. Augmented reality Augmented reality works with phones or glasses to overlay a virtual augmentation over the physical world. Augmented reality can be used to add games to the physical world, annotate travel information, or overlay healthcare information, but it doesn't make an ideal book reader. C. Wearable technology Wearable technologies are usually worn all day and are relatively small devices. A wearable device would not commonly be used for reading books or magazines.

Answer 52

The Answer: D. Rapid elasticity Scaling up and down as needed is a significant characteristic of cloud computing. This allows organizations to manage and pay for resources when busy, but save time and money when the resources are no longer needed. The incorrect answers: A. Resource pooling To provide rapid elasticity, there needs to be plenty of resources available when needed. Resource pooling puts all of the computing power in one place, and portions of the pool can be distributed as-needed. B. Measured service Tracking costs and utilization is useful for tracking and billing, and a measured service provides a way to monitor and view the use of cloudbased resources. C. Hybrid A hybrid cloud model combines both public and private clouds together. The hybrid cloud does not describe the scalability of these cloud deployment models.

Answer 53

The Answer: D. Restart the tablet Before making any changes to hardware or software, it's useful to restart the tablet to see if a software glitch may have been the underlying issue. The incorrect answers: A. Replace the screen Without running additional tests, it's impossible to know if the screen is actually the issue. Before switching out any hardware, it's useful to restart the system and run some hardware diagnostics. B. Reset the wireless network The wireless network would not have any impact on the screen digitizer. If the tablet was experiencing network issues, then resetting the wireless network may resolve any problems. C. Connect to a power source A tablet will continue to provide input to the digitizer, even in situations of low battery life. Connecting to a power source would not be a common solution for this issue.

Answer 54

The Answer: D. Use ad hoc mode Ad hoc mode allows two devices to directly communicate over an 802.11 wireless link without using an access point. The incorrect answers: A. Enable Bluetooth discovery on the tablet Enabling Bluetooth discovery would allow the tablet to use Bluetooth peripherals, but it would not enable 802.11 networking between the tablet and the laptop. B. Configure infrastructure mode on both devices Infrastructure mode is the 802.11 configuration used with an access point. In this question, the two devices need to communicate without using an access point. C. Create shared folders on the laptop computer Creating shared folders would potentially allow access from another device, but the network would need to be available to provide the connectivity.

Answer 55

The Answer: A. The new memory is not compatible with the motherboard ECC (Error Correcting Code) memory is designed to detect errors and correct them on the fly. Not all systems use ECC memory, and it's important that the memory matches the motherboard requirements. If non-ECC RAM (Random Access Memory) is replaced with ECC RAM and the system fails to start, then the issue is most likely associated with the change from non-ECC to ECC RAM. The incorrect answers: B. The new memory is faulty Although it's possible that the new RAM is faulty, the more likely and obvious issue is the switch from non-ECC to ECC memory. Before blaming the RAM, it would be useful to know what type of memory the motherboard is expecting. C. The BIOS needs to be updated Although a BIOS upgrade may be a rare upgrade requirement, the more obvious issue with this upgrade is related to the memory type. D. The system is overheating during the startup process It takes a bit of time to heat up the components inside of a computer, so a failure that occurs at startup is most likely not related to thermal or heat issues inside of the computer.

Answer 56

The Answer: D. The DHCP server is down APIPA (Automatic Private IP Addressing) is an IPv4 (Internet Protocol version 4) link-local addressing scheme. If a device does not have a static IP address and an address is not available from a DHCP server, the local device will assign itself an APIPA address so that communication to other APIPA devices on the same subnet will be available. The incorrect answers: A. The workstation is not connected to the wireless network APIPA addresses are used for any IP connected device, regardless of the type of network in use. B. The DNS server is misconfigured APIPA addresses are related to the local IP address and the availability of a DHCP server. The DNS server is not involved in the assigning of an APIPA address. C. The network is using public Internet addresses Assigned APIPA addresses include the range between 169.254.1.0 and 169.254.254.255. These addresses are considered "link-local" addresses and can only communicate within the same local IP subnet. APIPA addresses are not routable and devices with an APIPA address cannot send or receive traffic to the Internet. APIPA addresses are not public Internet addresses.

Answer 57

The Answer: A. Unmanaged switch Switches determine how traffic is forwarded based on the destination MAC (Media Access Control) address in the frame. The qualification of managed or unmanaged is not important in this case, since both types of switches make forwarding decisions the same way. The difference between a managed and unmanaged switch are based on other features not associated with the forwarding process.

Answer 58

The Answer: B. Enable Secure Boot Secure Boot is part of the UEFI (Unified Extensible Firmware Interface) standard for a computer BIOS (Basic Input Output System). Secure Boot ensures that the underlying operating system has not been modified by malware or any other process. The incorrect answers: A. Modify the boot drive sequence Changing the boot drive sequence in the BIOS would not resolve the UEFI or Security Boot process. C. Remove the BIOS password UEFI mode and Secure Boot do not require a boot or management password, and removing any of those passwords will not resolve the error message. D. Boot the system with the Windows setup media Booting with separate media would not resolve this issue when booting to the primary storage drive. UEFI mode with Secure Boot is required for this system.

Answer 59

The Answer: D. Remove the storage drive and place it into an external enclosure The current laptop will not boot due to the liquid damage, so the only option would be to remove the storage device from this laptop and use a different computer to access the required presentation files. The incorrect answers: A. Boot the system with a drive image utility Since this laptop will not start, attempting to boot with a drive imaging utility would not be a useful troubleshooting step. B. Connect an external monitor and boot from a USB drive Although this would bypass the laptop's storage drive, the primary issue in this system is the liquid damage to the motherboard. Unfortunately, the system will not allow booting to any drive on the laptop. C. Boot to the Windows Recovery Environment The Windows Recovery Environment would allow access to the file system if the computer was working, but the liquid damage prevents any software from starting on this laptop.

Answer 60

The Answer: B. RJ11 The RJ11 connector (Registered Jack 11) is the modular connector commonly associated with analog POTS (Plain Old Telephone System) lines. Since DSL (Digital Subscriber Line) uses the existing telephone lines, the DSL connection from an Internet Service Provider will also use those same lines with RJ11 connectors. These connectors will be the same for both residential, large-scale commercial, and SOHO (Small Office / Home Office) use. The incorrect answers: A. RS-232 RS-232 (Recommended Standard 232) is associated with the transmission of serial data across a link. These are slower speed connections that are commonly used today to connect and manage infrastructure devices such as switches, routers, and firewalls. RS-232 is not used for DSL or any high-speed Internet connection. C. BNC BNC (Bayonet Neill–Concelman) connectors are commonly used for coaxial connections used in larger enterprise environments. BNC is not used for SOHO DSL connections. D. F-connector The F-connector is the screw-on connector commonly used to attach cable television or cable modem coax connections. F-connectors are not used with twisted-pair copper DSL installations.

Answer 61

The Answer: C. Flatbed scanner A flatbed scanner is designed to capture images from paper and convert them into digital form. The incorrect answers: A. QR code reader A Quick Response code is the square image at the end of each detailed answer in this book, and the QR code for this question can be found at the bottom of this page. QR codes are used to abbreviate or summarize information into a code that can be easily converted using a QR code scanner or camera. B. Optical drive Optical drives, such as DVD-ROM (Digital Versatile Disc - Read Only Memory) readers can store digital information onto an optical disc that can be read by laser beams on the appropriate DVD reader. D. Webcam Webcams are designed to capture moving images and not printed pages.

Exam 1 Flashcards

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