Exam 3

Question 1

C6. A system administrator has been assigned the task of installing an
operating system, application, and data onto a cloud-based server.
Which of these best describes this scenario?
❍ A. Infrastructure as a Service
❍ B. Platform as a Service
❍ C. Hybrid Cloud
❍ D. Software as a Service

Answer 1

The Answer: A. Infrastructure as a Service
IaaS (Infrastructure as a Service) provides the CPU, memory, storage,
and other infrastructure components necessary for the installation of an
operating system and application.

Question 2

C7. A network engineer is installing a device that will allow wireless devices to
access the wired Ethernet network. Which of the following would BEST
describe this technology?
❍ A. Hub
❍ B. Managed switch
❍ C. VLAN
❍ D. WAP

Answer 2

The Answer: D. WAP
A WAP (Wireless Access Point) is a device that bridges the 802.11
wireless network together with a wired Ethernet network. Since the
WAP is acting as a bridge, it’s making forwarding decisions based on the
destination MAC address of the network frame.

Question 3

C8. A systems administrator has added a new video adapter to a desktop
computer, installed the latest video driver, and rebooted the system.
When the system starts, it continuously reboots before it reaches the
login prompt. Which of the following would be the BEST next
troubleshooting step?
❍ A. Press F8 during startup and choose “Boot from last known
working configuration”
❍ B. Upgrade the system BIOS using an update file from the
motherboard manufacturer
❍ C. Disconnect all USB storage devices and restart the system
❍ D. Reinstall the operating system

Answer 3

The Answer: A. Press F8 during startup and choose
“Boot from last known working configuration”
If a recent configuration causes a boot issue, Windows provides a way to
restart the operating system using the last known working configuration.
Each time Windows successfully boots, it makes a backup of that
configuration. If the startup option to “boot from last known working
configuration” is selected, that working backup is used instead of the
current Windows configuration. This can help resolve reboot issues like
those detailed in this question.

Question 4

C9. A system administrator is configuring a lab computer that will run five
server VMs at the same time. Which of the following hardware resources
will be the MOST important for this configuration?
❍ A. CPU
❍ B. Storage space
❍ C. Video adapter
❍ D. NIC

Answer 4

The Answer: B. Storage space
Adding five virtual machines to a single device would require as much
storage space as five separate operating systems. Of the available options,
the system storage will be used the most.

Question 5

C10. A user would like a tablet that can control the television volume and
cable box channels at home. Which of the following tablet features would
MOST likely be required?
❍ A. NFC
❍ B. Bluetooth
❍ C. IR
❍ D. Hotspot

Answer 5

The Answer: C. IR
IR (Infrared) communication is a line-of-sight connection that is
commonly used for low-bandwidth applications over a relatively short
distance. Infrared is commonly used to control televisions and other home
entertainment systems.

Question 6

C11. Which of the following would provide segmentation of broadcast
domains on the same physical switch?
❍ A. VLAN
❍ B. DNS
❍ C. VPN
❍ D. DHCP

Answer 6

The Answer: A. VLAN
A VLAN (Virtual Local Area Network) is used to segment interfaces
on a single switch or across multiple switches. This allows a network
administrator to separate networks on a single switch instead of installing
multiple physical switches.

Question 7

C12. A user is reporting that every page printed from a networked laser printer
appears as garbled graphics and text characters. Which of the following is
the MOST likely cause of this issue?
❍ A. Incorrect printer driver
❍ B. Damaged network cable
❍ C. Printer is low on memory
❍ D. Toner is low

Answer 7

The Answer: A. Incorrect printer driver
The printer driver formats the print job into a language that the printer
can understand. If the incorrect driver is used, the language sent to the
printer may not be interpreted correctly and the output may appear very
different than the original document. In extreme cases, the output may
appear as readable pages of garbled text and graphics.

Question 8

C13. During a presentation in a conference room, the lamp in an LCD
projector is turning off every five minutes and back on five minutes later.
Which of the following would be the MOST likely reason for this issue?
❍ A. The video cable is faulty
❍ B. The display lamp has failed
❍ C. The cooling process is failing
❍ D. The display resolution is incorrect

Answer 8

The Answer: C. The cooling process is failing
If an LCD (Liquid Crystal Display) projector becomes overheated, it
will automatically turn off to protect the bulb and other components.
This is similar to the automatic protections found in laptop and desktop
computers, and once the system cools down it can be restarted. If the
cooling fans are blocked or not working, this process may continue the
cycle until the cooling problem is resolved.

Question 9

C14. A system administrator has just completed a memory upgrade on a
database server. When starting the system, this message is displayed:
“Boot Device Not Found.” The BIOS configuration does not show any
hard drives in the system. Which of the following would be the NEXT
best troubleshooting step?
❍ A. Replace the hard drive
❍ B. Upgrade the BIOS
❍ C. Check the hard drive cables
❍ D. Modify the BIOS boot sequence

Answer 9

The Answer: C. Check the hard drive cables
A memory upgrade would require work inside of a computer case, and it’s
very easy to accidentally unseat or disconnect other cables. Since the only
change was the memory upgrade, a change to the storage subsystem would
not be expected. The most likely cause would be a cable issue.

Question 10

C15. If a laptop’s inverter is faulty, which of the following would be the MOST
likely result?
❍ A. The battery will not recharge
❍ B. The system will not power on
❍ C. The screen will be difficult to see
❍ D. The USB interfaces will not be powered

Answer 10

The Answer: C. The screen will be difficult to see
The inverter is used to convert the DC (Direct Current) power inside of
the laptop to AC (Alternating Current). The AC power is then used to
power the CCFL (Cold Cathode Florescent Lamp) backlights found in
older laptop computers. Without the backlight, it will be very difficult to
see the information displayed on an LCD (Liquid Crystal Display) screen.

Question 11

C16. What is the most common use for the switch on a computer’s
power supply?
❍ A. Sets the input voltage
❍ B. Controls the speed of the CPU
❍ C. Sets the cooling fan speed
❍ D. Boots from different operating system partitions

Answer 11

The Answer: A. Sets the input voltage
The input voltage to a power supply should match the capabilities of the
power supply unit. Many power supply units are auto-switching, and they
will automatically adjust between 120 volts and 240 volts based on the
input voltage. Alternatively, some power supply units have a switch that
must be manually set to specify input voltage.

Question 12

C17. Which of these devices would be required to use an 802.1Q trunk?
❍ A. Router
❍ B. Repeater
❍ C. Managed switch
❍ D. Cable modem

Answer 12

The Answer: C. Managed switch
A managed switch includes features not found in an unmanaged switch,
such as traffic prioritization, redundancy support, remote management,
and VLAN (Virtual Local Area Network) support for connectivity to
other switches via 802.1Q.

Question 13

C18. Rodney, a user in the manufacturing department, would like to have a
local backup of his iPhone data. Which of the following would provide
this backup?
❍ A. Download the phone data from iCloud
❍ B. Use iTunes to perform a local backup
❍ C. Connect the iPhone directly to an external storage device
❍ D. Connect using USB and copy the files from File Manager

Answer 13

The Answer: B. Use iTunes to perform a local backup
Apple’s iTunes application can be used to manage iOS devices, and it also
includes a backup and restore feature. Backups can be performed over a
wireless connection or from a directly connected iOS device.

Question 14

C19. A network administrator needs to connect Ethernet between two
buildings that are located across the parking lot from each other. The total
distance between the buildings is approximately 400 meters. Which of the
following technologies would be the BEST choice for this installation?
❍ A. Coax
❍ B. Category 6A
❍ C. Fiber
❍ D. UTP

Answer 14

The Answer: C. Fiber
Fiber optic communication can extend over very long distances using light
instead of radio frequencies. Since the maximum supported distance of
most Ethernet connections using copper are one hundred meters, any type
of connection that needs additional distance would be a good candidate
for fiber optic cabling.

Question 15

C20. A systems administrator needs to configure a smartphone to retrieve
email messages from the corporate mail server. Which of the following
protocols could be configured for this purpose? (Pick TWO)
❍ A. IMAP
❍ B. AFP
❍ C. SMTP
❍ D. LDAP
❍ E. POP3
❍ F. SNMP
❍ G. SMB

Answer 15

The Answer: A. IMAP and E. POP3
The two most common protocols used to retrieve email messages are
IMAP (Internet Message Access Protocol) and POP3 (Post Office
Protocol 3).

Question 16

C21. An administrator would like to maintain an inventory of company-owned
smartphones in a central database. Which of the following would allow
the administrator to identify a unique physical mobile device?
❍ A. IP address
❍ B. IMEI
❍ C. Phone number
❍ D. PRL

Answer 16

The Answer: B. IMEI
The IMEI (International Mobile Equipment Identity) is a unique number
associated with a physical device. No other mobile phone or cellular device
in the world shares the same IMEI, so it’s a common way to reliably
identify a unique mobile device.

Question 17

C22. Which of these cloud computing architectures would BEST describe
several organizations sharing the same resources?
❍ A. Community
❍ B. IaaS
❍ C. Public
❍ D. Hybrid

Answer 17

The Answer: A. Community
A community cloud model is often used by multiple organizations to
build a pool of resources with their combined financial contributions.
This multi-tenant model provides a shared cloud-based deployment to
organizations with similar goals and objectives.

Question 18

C23. What port should be configured in a firewall to block secure terminal
communication?
❍ A. 23
❍ B. 443
❍ C. 22
❍ D. 110

Answer 18

The Answer: C. 22
Port 22 is used by SSH (Secure Shell), the encrypted terminal
communication protocol.

Question 19

C24. The cooling fan controller in a server is failing. The server administrator
has tested possible reasons for the failures and has created a plan for
correcting the issue. Which of the following would be the best NEXT
troubleshooting step?
❍ A. Verify the fan controller is working properly
❍ B. List possible reasons for the controller failure
❍ C. Present the plan to the change control team
❍ D. Test for full functionality

Answer 19

The Answer: C. Present the plan to the change control team
Change control is an important part of the troubleshooting process for any
organization. When the change control committee approves the plan, the
fix can be tested and the issue can be documented.

Question 20

C25. A desktop administrator is troubleshooting an LCD display that shows a
faint image at the bottom right of the screen. The faint image is displayed
even when spreadsheets or browser screens are shown. Which of the
following would be the MOST likely reason for this issue?
❍ A. Stuck pixels
❍ B. Incorrect resolution
❍ C. Bad video cable
❍ D. Burn-in

Answer 20

The Answer: D. Burn-in
If an image is shown on a screen for an extended period of time, the
display may continue to show a faint “ghost” of the image after the display
has changed. This burn-in may be temporary, but it can be permanent in
extreme circumstances.

Question 21

C26. A systems administrator is troubleshooting a laptop that appears to
boot normally, but nothing appears on the LCD display. After closer
inspection, the administrator notices that text appears on the display
but the output is so faint that it’s difficult to see anything. What is the
MOST likely cause of this issue?
❍ A. The video card is faulty
❍ B. The laptop is not receiving enough power
❍ C. The video driver is not configured properly
❍ D. The inverter is faulty

Answer 21

The Answer: D. The inverter is faulty
The inverter on some LCD (Liquid Crystal Display) screens is used to
convert the internal DC (Direct Current) to AC (Alternating Current)
for use by the CCFL (Cold Cathode Fluorescent Lamp) backlights. If
the inverter has failed, the backlights will not operate and it will be very
difficult to read the information on the LCD screen.

Question 22

C27. A network administrator has installed a fifty meter network connection
from one side of the building to the other, and now he would like to make
sure that the punch-downs and crimps are connected to the correct pins
on each side. Which of these tools would be the best way to confirm the
wiring map?
❍ A. Multimeter
❍ B. Cable tester
❍ C. Toner probe
❍ D. Loopback plug

Answer 22

The Answer: B. Cable tester
A cable tester can quickly perform a wire map to determine if all of the
wires were properly crimped or punched down on both ends of the cable.

Question 23

C28. Which of these characteristics would be MOST associated with a thin
client workstation?
❍ A. Multiple CPUs
❍ B. Specialized GPU
❍ C. Network connectivity
❍ D. Maximum RAM installed

Answer 23

The Answer: C. Network connectivity
Thin client computers are viewing applications that are run on a separate
computer across the network, so the hardware requirements would be
minimal. Since most of the application use occurs across the network, the
NIC (Network Interface Card) would be an important component of any
thin client.

Question 24

C29. A user in the shipping department would like to connect multiple
displays to a desktop computer. Which of the following would support
this requirement? (Pick TWO)
❍ A. RJ45
❍ B. Lightning
❍ C. Fiber
❍ D. HDMI
❍ E. DB-9
❍ F. DVI-D

Answer 24

The Answer: D. HDMI and F. DVI-D
HDMI (High-Definition Multimedia Interface) and DVI-D (Digital
Visual Interface-Digital) are two common video connections. Some video
adapters will provide multiple video connection types and allow different
video outputs for each interface.

Question 25

C30. A user is trying to listen to a playlist on a pair of wireless speakers, but the speakers are not visible from the music app. The user has restarted the smartphone and the speakers, but the problem has not been resolved. Which of the following would be the BEST way to correct this issue? ❍ A. Restart the smartphone ❍ B. Pair the smartphone with the speakers ❍ C. Replace the speakers ❍ D. Install updated drivers in the smartphone

Answer 25

The Answer: B. Pair the smartphone with the speakers A Bluetooth device must be paired with a mobile phone or tablet to appear available to applications. Once the Bluetooth speakers are paired with the smartphone, the speakers should appear in the music app.

Question 26

C31. A network administrator has configured a wireless network to use two contiguous 20 MHz bonded channels on the 2.4 GHz band. Which of these wireless standards is in use? ❍ A. 802.11ac ❍ B. 802.11b ❍ C. 802.11n ❍ D. 802.11g

Answer 26

The Answer: C. 802.11n The 802.11n standard can operate with 20 MHz channel bandwidths or two contiguous 20 MHz channels to provide a 40 MHz channel bandwidth. If the 802.11n network is using the 2.4 GHz range, much of the available bandwidth will be consumed with this single 40 MHz transmission range.

Question 27

C32. A system administrator has found that other companies in the same office building have been connecting to her private wireless network. Which of the following would limit this access to the wireless network? ❍ A. Enable WPA2 encryption ❍ B. Change the wireless channel ❍ C. Assign QoS values ❍ D. Configure NAT

Answer 27

The Answer: A. Enable WPA2 encryption WPA2 (Wi-Fi Protected Access II) encrypts network traffic and prevents unauthorized users from accessing the wireless network.

Question 28

C33. A network engineer is installing a cable modem at a remote site. Which of these connectors would commonly be found on a cable modem? ❍ A. BNC ❍ B. eSATA ❍ C. SCSI ❍ D. F-connector

Answer 28

The Answer: D. F-connector The F-connector is the common coax screw-on connector used for television cable or cable modems. A cable modem installation will often use coax from the cable provider, and the F-connector is used to connect the coax to the cable modem.

Question 29

C34. A technician has just upgraded the memory on a desktop computer. After the computer runs for a few minutes, the system locks up completely and does not respond to keyboard or mouse input. After rebooting, no error messages are found in Event Viewer. Which of the following would be the BEST next troubleshooting step? ❍ A. Reinstall the operating system ❍ B. Upgrade the BIOS ❍ C. Update device drivers ❍ D. Run hardware diagnostics

Answer 29

The Answer: D. Run hardware diagnostics Issues that result in the system hanging without any additional information can be frustrating to troubleshoot. Since there are no error messages or log entries associated with the issue, the best option would be to perform a hardware diagnostic and at least confirm that the hardware is working as expected.

Question 30

C35. Which of these network types would MOST likely be categorized as a WAN? ❍ A. A point-to-point connection to an office in another country ❍ B. A fiber connection to a building across a campus ❍ C. A connection to a remote office on the other side of town ❍ D. A link between a mobile device and an automobile

Answer 30

The Answer: A. A point-to-point connection to an office in another country WAN (Wide Area Network) connections are between locations in different cities, states, or countries.

Question 31

C36. Which of these tools would be the MOST appropriate when working with 110 blocks? ❍ A. Loopback plug ❍ B. Multimeter ❍ C. Crimper ❍ D. Punch-down tool

Answer 31

The Answer: D. Punch-down tool Punch-down tools are used to attach individual wires into punch-down blocks such as the 66 block or 110 block. The punch down tool pushes wires into the block and cuts any excess wire from the block.

Question 32

C37. A system administrator is configuring the IP address settings on a remote server. Which of these settings would enable the server to communicate with other devices using a fully qualified domain name? ❍ A. DHCP ❍ B. IP address ❍ C. DNS ❍ D. Subnet mask

Answer 32

The Answer: C. DNS A DNS (Domain Name System) server provides the conversion between fully qualified domain names and IP (Internet Protocol) addresses. With a DNS, we can refer to servers by their name instead of using IP addresses.

Question 33

C38. Which of the following devices makes forwarding decisions based on destination IP address? ❍ A. Repeater ❍ B. Router ❍ C. Hub ❍ D. Managed switch

Answer 33

The Answer: B. Router A router decides the next hop of an packet based on the packet's destination IP (Internet Protocol) address.

Question 34

C39. A system administrator has been tasked with running an application from one system architecture on a computer running a completely different system architecture. Which of the following would BEST describe this requirement? ❍ A. Virtualization ❍ B. Elevation ❍ C. Emulation ❍ D. Synchronization

Answer 34

The Answer: C. Emulation The best environment for running an application is the system architecture in which it was originally designed. However, there may be instances where the original architecture may be unavailable. In those instances, it may be possible to emulate the original system architecture on a completely different computing system.

Question 35

C40. A user in the accounting department had a new laptop delivered and installed, but they are reporting that the network throughput seems much slower than the previous computer. Which of the following would be the most likely cause of these slow transfer speeds? ❍ A. Incorrect SSID ❍ B. Device is assigned an APIPA address ❍ C. Incorrect gateway configuration ❍ D. Duplex mismatch ❍ E. Device is assigned an RFC 1918 address

Answer 35

The Answer: D. Duplex mismatch A mismatch of half-duplex and full-duplex will not cause a total disruption of network communication, but it will cause the network to have slow performance.

Question 36

C41. A workstation is configured with a video card that outputs DVI-D, but it needs to connect to an LCD projector that requires an HDMI connection. Which of the following would be the BEST way to connect this workstation to the projector? ❍ A. DVI-D to HDMI adapter ❍ B. Digital to analog converter ❍ C. VGA to HDMI adapter ❍ D. USB to HDMI converter

Answer 36

The Answer: A. DVI-D to HDMI adapter DVI-D (Digital Visual Interface-Digital) and HDMI (High-Definition Multimedia Interface) are electrically compatible and only require an interface adapter to connect between devices. No conversion of the video signal is required between DVI-D and HDMI.

Question 37

C42. An Android user needs to transfer some presentations from their desktop computer to their smartphone. Which of the following would be the BEST choice? ❍ A. Lightning ❍ B. RJ45 ❍ C. USB-C ❍ D. Thunderbolt

Answer 37

The Answer: C. USB-C USB-C is a connection type used on many Android-based devices.

Question 38

C43. What type of network connection is commonly used by DSL? ❍ A. Coax ❍ B. Fiber optic ❍ C. Line-of-sight ❍ D. Twisted pair copper

Answer 38

The Answer: D. Twisted pair copper DSL (Digital Subscriber Line) networks use the same twisted pair copper as traditional phone lines.

Question 39

C44. A workstation has been configured with a gigabit NIC, RAID array, and a series of hard drives. Which of the following would be the MOST likely use of this workstation? ❍ A. NAS ❍ B. CAD/CAM workstation ❍ C. Gaming PC ❍ D. Thin client

Answer 39

C45. A system administrator has just built a new server with an eight core CPU. When viewing information in Windows Task Manager, the utility shows CPU performance for sixteen different processors. Which of the following would be the MOST likely reason for this output? ❍ A. Task Manager displays CPU input and output separately ❍ B. The CPU supports hyper-threading ❍ C. The BIOS requires an upgrade to support the newer CPU ❍ D. The CPU is faulty

Question 40

C45. A system administrator has just built a new server with an eight core CPU. When viewing information in Windows Task Manager, the utility shows CPU performance for sixteen different processors. Which of the following would be the MOST likely reason for this output? ❍ A. Task Manager displays CPU input and output separately ❍ B. The CPU supports hyper-threading ❍ C. The BIOS requires an upgrade to support the newer CPU ❍ D. The CPU is faulty

Answer 40

The Answer: B. The CPU supports hyper-threading HTT (Hyper-threading Technology) provides additional processing efficiency by treating a single CPU (Central Processing Unit) as two separate processors. Although this does not provide twice the performance, it can increase processing efficiency by fifteen to thirty percent.

Question 41

C46. What type of proprietary Apple connector can be plugged in face up or face down? ❍ A. Lightning ❍ B. Thunderbolt ❍ C. FireWire ❍ D. USB-C

Answer 41

The Answer: A. Lightning The Apple lightning connector is only found on Apple devices, and it allows for a higher power output to charge larger phone and tablets. The connector can also be plugged in either face up or face down.

Question 42

C47. Which of the following best describes elasticity in cloud computing? ❍ A. A cloud-based application framework is used to build more complex apps ❍ B. The cloud operates in an internal virtualized data center ❍ C. All cloud storage is managed from a central pool ❍ D. The cloud resources can scale up as needed

Answer 42

The Answer: D. The cloud resources can scale up as needed Rapid elasticity is a cloud computing characteristic that allows the scaling up and down of cloud-based applications on an as-needed basis.

Question 43

C48. A network administrator has been asked to control network access to destination websites based on the URL. Which of the following would provide this functionality? ❍ A. QoS ❍ B. Whitelisting ❍ C. NAT ❍ D. MAC filtering

Answer 43

The Answer: B. Whitelisting Whitelisting allows an administrator to limit all access through a device unless the content has been previously approved and configured in the device. This is a very restrictive security posture, but it does provide extensive control of network traffic flows. In this example, the whitelists are based on the URL (Uniform Resource Locator) of a website, commonly referenced as the web site address.

Question 44

C49. Which of the following would be MOST commonly associated with a KVM switch? ❍ A. DB-9 ❍ B. 802.11 ❍ C. VGA ❍ D. BNC

Answer 44

The Answer: C. VGA VGA (Video Graphics Array) is a standard video format that's often used on KVM (Keyboard/Video/Mouse) switches. USB (Universal Serial Bus) or PS/2 (Personal System/2) interfaces would be commonly connected to the keyboard and mouse ports.

Question 45

C50. A user has reported that they can't browse to Google's search page at https://www.google.com. The workstation IP address is 192.168.1.5, the subnet mask is 255.255.255.0, the default gateway is 192.168.1.1, and the domain name servers are 10.2.2.1 and 10.2.2.2. A technician can successfully ping the local IP address, the default gateway, and Google's DNS server at 8.8.8.8. Which of the following is the most likely cause of this issue? ❍ A. The Ethernet adapter's duplex setting is incorrect ❍ B. The default gateway is faulty ❍ C. The Internet connection is down ❍ D. The DNS servers are faulty ❍ E. The client's default gateway configuration is incorrect

Answer 45

The Answer: D. The DNS servers are faulty The DNS (Domain Name System) servers are responsible for converting a name (www.google.com) to an IP address. If the DNS servers are not working, then an IP address for a device cannot be resolved and the communications process can't continue.

Question 46

C51. A user in the facilities department is having an issue printing their complex blueprints to a network laser printer. When they pick up their output, the top half of the blueprint is printed but the bottom half of the page is completely blank. Which of these is the MOST likely cause of this issue? ❍ A. Network is faulty ❍ B. Printer is out of memory ❍ C. The fuser is not operating ❍ D. Printer is out of toner

Answer 46

The Answer: B. Printer is out of memory A laser printer must render an entire page in memory before starting the printing process. If a complex image exhausts the available memory, only a portion of the page will be printed.

Question 47

C52. A user is connecting their laptop to a docking station for the first time, but is not able to see any video output. The USB keyboard and mouse connected to the docking station appear to be working normally. Which of the following should be the NEXT troubleshooting task? ❍ A. Use the secondary Fn display key ❍ B. Toggle airplane mode on the laptop ❍ C. Install an updated video driver ❍ D. Enable external video output in the laptop BIOS

Answer 47

The Answer: A. Use the secondary Fn display key The Fn (Function) key on a laptop is used to control laptop features without requiring additional keys or buttons. Most laptops will include a Fn key that will enable the external video display and select the type of video that will appear on the external screen.

Question 48

C53. Two computers in a test lab are used to transfer files to each other over a wireless network, but the test lab does not have an access point. Which of the following would best describe this connection? ❍ A. WPA2 mode ❍ B. Ad hoc mode ❍ C. SSID mode ❍ D. Infrastructure modev

Answer 48

The Answer: B. Ad hoc mode Ad hoc mode configures a device to communicate directly to another device using the wireless network adapter. With ad hoc mode, a central access point is not required to communicate to another device.

Question 49

C54. A Windows computer is configured to obtain an IP address automatically. Which of the following would occur if the automatic assignment process was not working? ❍ A. The IP address would be set to 0.0.0.0 ❍ B. A link-local address would be assigned ❍ C. The Ethernet adapter would be disabled ❍ D. The last known good IP address would be used

Answer 49

The Answer: B. A link-local address would be assigned If a device is configured to obtain an IP address from a DHCP (Dynamic Host Configuration Protocol) server and the DHCP server is not available, an APIPA (Automatic Private IP Addressing) address, or linklocal address, would be self-assigned.

Question 50

C55. A web server administrator has received a notification that disk 1 in a RAID 5 array has failed. Which of the following would be the BEST next step to resolve this drive failure? ❍ A. Replace disk 1 and restore from backup ❍ B. Replace all drives and restore from backup ❍ C. Replace all drives and rebuild the array ❍ D. Replace disk 1 and rebuild the array

Answer 50

The Answer: D. Replace disk 1 and rebuild the array A RAID 5 (Redundant Array of Independent Disks, level 5) array is designed to maintain data availability in the event of a single drive failure. In this example, it's unlikely that the users even realized that one of the drives on the array was suddenly unavailable, because the array would continue to operate normally with all data intact. To resolve this issue, the bad drive would need to be replaced, and the array would rebuild the data on the new drive using the redundant data from other drives.

Question 51

C56. IoT devices can build connections between each other to increase the overall network communication distance. Which of the following would best describe this type of network? ❍ A. PAN ❍ B. LAN ❍ C. WMN ❍ D. MAN

Answer 51

The Answer: C. WMN A WMN (Wireless Mesh Network) is commonly used by IoT (Internet of Things) devices to extend the overall reach of the network. All devices connect to each other to create a mesh "cloud" that can be used by all of the IoT devices.

Question 52

C57. A user in the accounting department is reporting that all of the printed pages from a networked laser printer are completely blank. Nothing appears to be written on any of the printed pages. Which of the following would be the MOST likely cause of this issue? ❍ A. Fuser is faulty ❍ B. Print drivers are incorrect ❍ C. Printer out of memory ❍ D. Toner cartridge is faulty

Answer 52

The Answer: D. Toner cartridge is faulty If the toner cartridge is completely empty or is not properly providing toner to the printer, then nothing will be printed on the final output.

Question 53

C58. A systems administrator has just installed a new server in a data center. When pressing the power button, there’s no response from the server, no lights appear on the front display, and no fans are spinning. Which of the following would be the MOST likely reason for this issue? ❍ A. An operating system is not installed on the server ❍ B. The power supply switch is set to the wrong input voltage ❍ C. The BIOS needs to be upgraded ❍ D. The keyboard and mouse are not connected

Answer 53

The Answer: B. The power supply switch is set to the wrong input voltage If the data center power provides 120 volts and the computer's power supply is set to 240 volts, the computer will not be able to start. Some power supplies will attempt to start with the lower voltage while other power supplies will not work at all. In either case, the computer is not going to perform properly with the lower voltage and may be damaged by the difference in expected voltage.

Question 54

C59. Which of the following services would automatically provide an IP address to any device connected to the network? ❍ A. DNS ❍ B. Proxy ❍ C. IPS ❍ D. DHCP

Answer 54

The Answer: D. DHCP DHCP (Dynamic Host Configuration Protocol) is used to automatically assign IP addresses to network devices. A device configured to use DHCP will be assigned an IP address without any intervention from the user or network administrator.

Question 55

C60. A quality assurance team is planning to use a single workstation to simultaneously test an application across multiple operating systems. Which of the following components would be MOST important for this workstation? ❍ A. Enhanced sound card ❍ B. Gigabit NIC ❍ C. Dual monitors ❍ D. Maximum RAM

Answer 55

The Answer: D. Maximum RAM Running multiple operating systems simultaneously on a single system will require extensive CPU and RAM usage.

Question 56

C61. A computer lab is purchasing supplies for their 3D printers. Which of the following should be included on this order? ❍ A. Toner cartridge ❍ B. Ink ribbon ❍ C. Plastic filament ❍ D. Ink cartridge

Answer 56

The Answer: C. Plastic filament 3D printers melt plastic filament in layers to create a 3D object.

Question 57

C62. A network administrator has configured a system to operate in infrastructure mode. Which of the following would BEST describe this mode? ❍ A. The wireless network communicates through an access point ❍ B. The BIOS settings cannot be changed without an administrator password ❍ C. No changes can be made to the operating system files ❍ D. All files shares are stored on a central NAS

Answer 57

The Answer: A. The wireless network communicates through an access point Infrastructure mode uses an access point to communicate with other devices on the network. Ad hoc mode communicates directly to another device without using an access point.

Question 58

C63. A server administrator is building a web server with three hard disk drives. The storage for the server requires the fastest possible access and redundancy is not a primary requirement. Which of the following would be the BEST choice for this server? ❍ A. RAID 10 ❍ B. RAID 1 ❍ C. RAID 0 ❍ D. RAID 5

Answer 58

The Answer: C. RAID 0 RAID (Redundant Array of Independent Disks) level 0 does not provide any redundancy, but it will efficiently stripe data across multiple drives. RAID 0 does not require the duplication of data or calculation of parity, so it's commonly considered the fastest access of the RAID levels.

Question 59

C64. A network engineer is troubleshooting the connection of a tablet to a cellular provider’s network. Which of these would BEST describe this network connection? ❍ A. Integrated Services Digital Network ❍ B. Long Term Evolution ❍ C. Media Access Control ❍ D. Near Field Communication

Answer 59

The Answer: B. Long Term Evolution Long Term Evolution, or LTE, is a converged standard used by mobile providers to provide high-speed communication over cellular frequencies.

Question 60

C65. A developer has requested a server for testing a new application. To complete this request, the system administrator logs into his cloud console and allocates a new server configuration. Which of the following describes this process? ❍ A. Metered ❍ B. Resource pooling ❍ C. Measured ❍ D. On-demand

Answer 60

The Answer: D. On-demand The characteristic of on-demand self-service is an important aspect of cloud computing. With an on-demand process, system administrators can instantly create, modify, or delete services. This provides the flexibility to build an application infrastructure for any service at any time.

Question 61

C66. A user is complaining that their laptop keyboard is displaying numbers when letter keys are pressed. When you look at the laptop, you confirm that pressing some of the letters on the keyboard shows numbers on the screen. What is the MOST likely cause of this problem? ❍ A. Windows has remapped the keyboard layout ❍ B. The secondary function key has enabled NumLock ❍ C. The Caps Lock key is enabled ❍ D. The laptop’s keyboard is faulty

Answer 61

C66. A user is complaining that their laptop keyboard is displaying numbers when letter keys are pressed. When you look at the laptop, you confirm that pressing some of the letters on the keyboard shows numbers on the screen. What is the MOST likely cause of this problem? ❍ A. Windows has remapped the keyboard layout ❍ B. The secondary function key has enabled NumLock ❍ C. The Caps Lock key is enabled ❍ D. The laptop’s keyboard is faulty

Question 62

C67. Which of the following would be commonly used to connect a chip reader to a point of sale terminal? ❍ A. TRS ❍ B. BNC ❍ C. VGA ❍ D. USB

Answer 62

The Answer: D. USB USB (Universal Serial Bus) is a common interface to use for mouse, keyboard, printers, and many other peripheral connections. The chip reader used on a point of sale terminal commonly connects over this USB interface.

Question 63

C68. A server administrator has recently upgraded the CPU in one of his database servers, and he has also installed a new heat sink and a CPU fan. Unfortunately, the computer is now powering down after ten minutes of normal use. Which of the following is the MOST likely reason for this issue? ❍ A. Insufficient thermal paste ❍ B. Overloaded power supply ❍ C. The OS is out of memory ❍ D. Incorrect BIOS configuration

Answer 63

The Answer: A. Insufficient thermal paste If a computer runs for a number of minutes and suddenly shuts down, then heat is probably the root cause of the issue. Since this system was just upgraded and the cooling system was changed, the most likely reason for this problem is related to the cooling of the CPU.

Question 64

C69. Which of the following technologies performs BEST when reading a text-based document in direct sunlight? ❍ A. Tablet ❍ B. Smart phone ❍ C. e-Reader ❍ D. Augmented reality glasses

Answer 64

The Answer: C. e-Reader The electronic ink or electronic paper used on e-Readers allows their screens to be viewed easily in bright light.

Question 65

C70. The mouse on a desktop computer has stopped operating. Which of the following would be the best NEXT troubleshooting step? ❍ A. Replace the mouse ❍ B. View Device Manager ❍ C. Reinstall the mouse driver ❍ D. Move the mouse to a different USB interface

Answer 65

The Answer: B. View Device Manager The first step of the troubleshooting process is to identify the problem. Before making any changes, it's important to research the issue and gather as much information as possible.

Question 66

C71. A network administrator is viewing the interface statistics on a WAN router and has noticed that error rates are increasing. The administrator has replaced the WAN cables, but the errors continue. Which of the following tools should be used to BEST troubleshoot this issue? ❍ A. Loopback plug ❍ B. Toner probe ❍ C. Multimeter ❍ D. Cable tester

Answer 66

The Answer: A. Loopback plug A loopback plug is useful when running diagnostics on a device interface. Data is sent out an interface, and the loopback plug redirects that data back to the interface. By comparing the data sent and received, the technician can determine if an interface may not be operating properly.

Question 67

C72. Which part of the laser printing process requires extensive use of printer memory? ❍ A. Processing ❍ B. Fusing ❍ C. Transferring ❍ D. Exposing

Answer 67

The Answer: A. Processing The processing phase is the first phase of the laser printing process. The printer builds the entire page in memory before the rest of the printing processes can continue.

Question 68

C73. An administrator is trying to print some customer letters on company letterhead, but the multi-tray laser printer is printing everything on plain paper. Which of the following is the MOST likely cause of this issue? ❍ A. Print spooler has crashed ❍ B. Printer hardware is faulty ❍ C. Tray selection in the printer driver is incorrect ❍ D. Printer does not support printing on letterhead

Answer 68

The Answer: C. Tray selection in the printer driver is incorrect Many organizations will use a multi-tray printer with plain paper in one tray and letterhead in the other. The printer driver allows the user to configure and select certain printer functions, including the print tray that will be used during the printing process.

Question 69

C74. Walter, a hardware technician, has been asked to purchase a system that will be used as a database server. One of the specifications for the server requires the system to detect and correct memory errors during operation. Which of the following would be the BEST option for this project? ❍ A. Parity memory ❍ B. Single channel ❍ C. ECC ❍ D. SO-DIMM

Answer 69

The Answer: C. ECC ECC (Error Correcting Code) memory is designed to both identify memory errors and correct them if possible. It's common to see ECC RAM (Random Access Memory) used in servers to minimize any potential downtime.

Question 70

C75. A system administrator is replacing a cracked LCD display on a Windows laptop. Which of the following would be the MOST important component to test after this replacement? ❍ A. Trackpad ❍ B. Wireless network ❍ C. USB devices ❍ D. Primary storage drive

Answer 70

The Answer: B. Wireless network The antenna wires of the 802.11 wireless and Bluetooth adapters commonly wrap around the laptop display for the best possible height. When replacing the display, it's important to make sure that the wires are properly installed and have not detached from the antenna connectors on the wireless adapter or motherboard.

Question 71

C76. Which of the following would be MOST associated with M.2? ❍ A. HDD ❍ B. Hybrid ❍ C. RAID ❍ D. SSD

Answer 71

The Answer: D. SSD SSDs (Solid State Drives) are storage devices that use non-volatile memory and have no moving parts. The M.2 interface is a small form factor interface that allows for high-throughput storage in a smaller footprint than a 2.5-inch storage drive.

Question 72

C77. A user in the accounting department is reporting that her smartwatch is not synchronizing with her mobile phone. The phone is powered on and unlocked, but the phone does not show the smartwatch in a list of available devices. Which of the following would MOST likely solve this issue? ❍ A. Enable NFC on the mobile phone ❍ B. Disable Wi-Fi on the mobile phone ❍ C. Enable Bluetooth on the mobile phone ❍ D. Restart the phone and smartwatch

Answer 72

The Answer: C. Enable Bluetooth on the mobile phone The PAN (Personal Area Network) used for connectivity between local devices is Bluetooth, so enabling Bluetooth on the phone should allow the watch and phone to communicate to each other.

Question 73

C78. A computer used for testing high-resolution gaming displays has a highend video adapter and DisplayPort video connection. The computer works properly for word processing and spreadsheets, but it powers down after only a few minutes of graphics testing. Which of the following would be the MOST likely reason for this issue? ❍ A. The storage drive is not fast enough for the testing application ❍ B. The CPU fan is faulty ❍ C. The video display is not properly connected ❍ D. One of the memory modules is faulty

Answer 73

The Answer: B. The CPU fan is faulty If a system powers off after some intense CPU (Central Processing Unit) utilization, then the issue is most likely associated with heat or power. Most computers have many different temperature sensors that will recognize when the system gets too hot, and they will automatically power down to prevent damaging the CPU, memory, and other hardware.

Question 74

C79. A network administrator has created a configuration that provides a server with the same IP address each time the server is started. Which of the following would BEST describe this configuration? ❍ A. Link-local address ❍ B. IP reservation ❍ C. Default gateway ❍ D. APIPA

Answer 74

The Answer: B. IP reservation An IP (Internet Protocol) reservation is usually configured on a DHCP (Dynamic Host Configuration Protocol) server to ensure that specific devices always receive the same IP address. This is commonly done to ensure that important network resources are always available using the same IP address.

Question 75

C80. Which of the following BEST describes a hypervisor? ❍ A. Manages the resources required for virtualization ❍ B. Increases the overall CPU efficiency of a computer ❍ C. Improves the throughput of network communication ❍ D. Prevents malware from executing in secure areas of memory ❍ E. Caches CPU transactions to provide an overall faster response time

Answer 75

The Answer: A. Manages the resources required for virtualization A hypervisor, or virtual machine manager, is the software that manages the connection between the physical world and the virtual machine. The hypervisor is commonly associated with the management of the CPU (Central Processing Unit), memory, networking, and security on the virtual machines.

Question 76

C81. A network technician is installing a new copper gigabit Ethernet connection, but when they plug in the network cable the status light indicators are dark. Which of the following would be the MOST likely status of the network connection? ❍ A. The DHCP server has not assigned an IP address ❍ B. There is no signal on the Ethernet cable ❍ C. The Ethernet link is running at 100 megabits per second instead of 1 gigabit per second ❍ D. The primary DNS server is not responding

Answer 76

The Answer: B. There is no signal on the Ethernet cable A least one light on the Ethernet adapter is commonly associated with the link status. The link light will turn on if a signal is identified on the Ethernet cable. Most Ethernet adapters will have lights to indicate the status of an Ethernet signal and the speed of the link.

Question 77

C82. A finance manager is printing a contract that is designed to be printed on both sides of the page, but the printer is only providing output on one side of the paper. Which of the following options would resolve this issue? ❍ A. Collate ❍ B. Caching ❍ C. Orientation ❍ D. Duplex

Answer 77

The Answer: D. Duplex The duplex setting on a printer enables printing on both sides of the page without requiring a person to manually flip the pages over.

Question 78

C83. A technician is troubleshooting a mobile phone that turns off after about an hour of normal use. Before powering off, the phone displays the message, “High temperature detected.” The phone is used inside the building at room temperature, and is not used in direct sunlight. Which of the following would be the MOST likely reason for this issue? ❍ A. An app is using a large amount of CPU ❍ B. The Wi-Fi network is overloaded ❍ C. The battery has low voltage ❍ D. The mobile phone has an invalid certificate

Answer 78

The Answer: A. An app is using a large amount of CPU Electronic devices generate a lot of heat, and the amount of heat from a CPU increases dramatically as it is used. Although most mobile devices will dissipate the heat using passive cooling, it's still possible to overheat the device in certain circumstances.

Question 79

C84. The help desk has received a ticket that a desktop computer is reporting slow performance. The hard drive access LEDs are continuously lit, and it takes sixty seconds to load a file that previously took five seconds. The CPU and memory utilization statistics show minimal resource use. Which of the following would be the BEST next step? ❍ A. Upgrade the RAM ❍ B. Replace the hard drive ❍ C. Upgrade the BIOS ❍ D. Boot to Safe Mode ❍ E. Upgrade the power supply

Answer 79

The Answer: B. Replace the hard drive Slow file access and a low amount of memory and CPU utilization indicates a problem with the hard drive. Performing a backup and replacing the drive should return the system to normal operation.

Question 80

C85. A user in the marketing department was using their computer to send some email messages. The computer made an unexpected loud pop and immediately powered down. The computer would not respond to additional attempts to power it back on. Which of the following would be the MOST likely cause of this issue? ❍ A. Incorrect video refresh rate ❍ B. Faulty capacitor ❍ C. Incomplete software update ❍ D. Bad memory module

Answer 80

The Answer: B. Faulty capacitor Not all capacitors pop when they fail, but often a loud pop inside of a computer is related to a blown capacitor. The second symptom of the immediate powering off of the system also helps make the case that a capacitor is to blame.

Question 81

C86. A manager in the shipping department needs to connect their laptop to wireless portable speakers while in the office. Which of these should be configured on their laptop? ❍ A. Tethering ❍ B. Bluetooth ❍ C. NFC ❍ D. IR

Answer 81

The Answer: B. Bluetooth Most external portable speakers use Bluetooth to receive audio signals from a mobile device. Bluetooth has the best fit for connectivity options, distance requirements, and bandwidth for sending audio data.

Question 82

C87. A technician has two hard disk drives that need to be configured redundantly, and all information should be duplicated across physical drives. Which of the following should be configured? ❍ A. RAID 5 ❍ B. RAID 1 ❍ C. Dynamic disks ❍ D. RAID 0

Answer 82

The Answer: B. RAID 1 The RAID 1 (Redundant Array of Independent Disks) array keeps an exact duplicate of data across multiple drives. If one drive fails, the other drive containing the duplicated data continues to provide access to the data.

Question 83

C88. A system administrator has connected a desktop computer to a new LCD monitor. After connecting the monitor, all of the desktop icons and windows appear oversized and larger than usual. Which of the following would be the BEST way to correct this issue? ❍ A. Modify the display resolution ❍ B. Use a different LCD display ❍ C. Replace the monitor cable ❍ D. Restart the desktop computer

Answer 83

The Answer: A. Modify the display resolution The display resolution determines how many horizontal and vertical pixels are used when displaying information on a screen. If the resolution is set relatively low, then the screen information will appear larger than a higher resolution. To correct this oversized view, the system administrator will need to configure a higher resolution setting on the desktop computer.

Question 84

C89. A company is developing a product that will monitor a user’s heart rate and sleep patterns. Which category BEST fits this type of product? ❍ A. Augmented reality ❍ B. Tablet ❍ C. Smart phone ❍ D. Wearable

Answer 84

The Answer: D. Wearable Wearable products are designed to be worn on the body and can constantly monitor health information and other nearby sensors. Fitness monitors are a common wearable technology.

Question 85

C90. A system administrator is installing a new LCD projector in the company conference room. Which of the following would MOST likely be used with this projector? ❍ A. Lightning ❍ B. UTP ❍ C. Coaxial ❍ D. HDMI

Answer 85

The Answer: D. HDMI HDMI (High-Definition Multimedia Interface) is a common interface for transmitting audio and video to televisions, displays, and projectors.