Comptia A+ 901: Part 1 Flashcards Preview

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Flashcards in Comptia A+ 901: Part 1 Deck (72)
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61

A user complains that he can no longer see any wireless networks, connect to his bluetooth headset, or make phone calls on his Android phone. What do you suggest to fix this issue?

A) Dial *228
B) Disable Airplane Mode
C) Ensure the phone is not overheating
D) Try using the phone outdoors

B) Disable Airplane Mode

These "symptoms" describe a phone that is in airplane mode. Dialing *228 on some cell networks may improve reception, but it will not address issues with WiFi or bluetooth. The same can be said about using the phone outdoors. These symptoms do not describe an overheating phone.

62

You want to move from using physical servers to using virtual servers/machines (VMs) while utilizing the same hardware that is currently in place. You need to make sure this is possible, what feature must your CPU support?

A) Virtualization
B) Hyperthreading
C) Multiple cores
D) Dual voltage options

A) Virtualization

If your processor does not support virtualization you cannot run VMs on the server. Hyperthreading and multicore processors are nice-to-have but not essential. Dual voltage options are for power supplies, not processing.

63

Which medium can travel the farthest distance while losing minimal data?


A) USB 3.0
B) CAT5e UTP
C) CAT6 STP
D) Fiber

D) Fiber

Because Fiber cabling uses light, it can travel extremely far distances while losing a very small amount of data.

64

You are installing a floppy drive into a new desktop PC, what should you check for before purchasing or installing?

A) Ensure BIOS is updated
B) Ensure power supply has a Berg connector
C) Ensure power supply has correct floppy driver
D) None of the above

B) Ensure power supply has a Berg connector

A Berg adapter is used to supply power from the power supply, to the floppy drive. Some newer power supplies do not come with a berg due to low demand for floppy drives. You can purchase molex->berg adapters to fix this issue.

65

A 802.11g wireless network has a max speed of?

A) 11Mbps
B) 54Mbps
C) 1Gbps
D) 72Mbps

B) 54Mbps

802.11g is capable of communicating at speeds up to 54 Megabits per second.

66

What type of expansion card can record security footage from a CCTV system?

A) Video recording software
B) PCI TV Tuner
C) PCIe16 Video Adapter card
D) NIC

B) PCI TV Tuner

A TV Tuner allows you to input various inputs such as coax, HDMI, and RGB video.

67

You want to host a gaming server for you and your friends to play on. Where on your network would you place it?

A) DMZ
B) Separate subnet
C) Next to your router
D) None of the above

A) DMZ

A DMZ will allow your server to be accessed through the internet, but keep it separate from your local LAN. This ensures your LAN is still secure if the server is attacked.

68

You are a PC Support technician and you have been asked to select components to build a computer that will be used for CAD/CAM (Computer Aided Drafting/Computer Aided Modeling). Which components are the BEST TWO choices?

A) MIDI sound card
B) Onboard graphics
C) Triple channel memory
D) TV tuner
E) Socket 1366 CPU

C) Triple channel memory
E) Socket 1366 CPU


EXPLANATION:

Intel’s 1366 platform uses an enormous 12MB L3 cache, a triple-channel RAM design as well as a superfast system bus, QuickPath Interconnect or QPI. Although not the latest technology, thanks to Hyper-Threading, this is still a very popular solution on many parallel processors, with the ability to service 12 threads simultaneously. However today Sandy Bridge Core i5 (not in the A+ exam objectives) is a strong alternative. Bottom line is if you are using really processor heavy software like CAD/CAM 1366 is clearly a contender.

Triple channel memory as the name indicates trebles the memory speed and performance. Not too many processors handle this but The LGA 1366 platform does support DDR3 triple-channel. It typically would run 1333 and 1600Mhz but, on certain motherboards, it can run at higher clock speeds.



Click here for the 220-801 & 220-802 A+ practice tests. The A+ 220-801 & 220-802 exams are available in the testing centers till June 30, 2016. CompTIA traditionally allows for an overlap between the new and “old” exam objectives.

69

A technician is not able to boot to Windows OS. A “Non-bootable device found” message appears on the screen when the computer restarts. Which of the following is the MOST likely cause of the error message?

A) HDD is set to Cable Select.
B) A bootable HDD is not recognized in the BIOS.
C) Corrupt files in the operating system.
D) A rootkit has been installed.

B) A bootable HDD is not recognized in the BIOS.


EXPLANATION:

Verify that your hard drive is detected by the BIOS or that you can see your new hard disk (if applicable) on the boot screen. Some computers have this option enabled, where you can see other components as well. To see it press the DEL, F1 or F2 key at boot screen. The most obvious sign that BIOS is unable to detect a hard drive is of course that the BIOS is not registering the hard drive. Note that on some boards, the hard drive with the bootable OS must be connected to the first SATA connector. This one is typically labeled SATA 0 (zero). The last detractor “A rootkit has been installed” gives access, doesn’t block and so is unlikely to cause the event.

70

There are several alternatives available to satisfy the built in mass storage needs of computers. Which of the following are current hard drive technologies? (Choose three)

A) Magnetic drive
B) Tape drive
C) Hybrid drive
D) Solid State Drive
E) Floppy disk
F) Digital versatile disc

A) Magnetic drive
D) Solid State Drive
C) Hybrid drive



EXPLANATION:

On today’s computers a hard drive can be either of the three following: a magnetic drive, a solid state drive, or a hybrid drive. Magnetic drives are still the most commonly encountered technology but it is slowly being overtaken by Solid State Drives (SSD). Mainly the complaint with magnetic drives is that they are unreliable and potentially slow. When files are physically written on a magnetic hard drive in fragmented bits and pieces (the entire file is distributed over different parts of the drive), low performance and sluggish access speeds will be the outcome. If the magnetic drive becomes over-filled with data (and this can happen anywhere north of 85% capacity) this may cause a fatal crash and the drive and data can be lost. A solid state drive contains flash memory and is more expensive, faster, more reliable, and uses less power than a magnetic drive. Access speeds feel lightning fast (no actuator arms have to “look around” for the files) and the chances of a fatal crash due to actuator arms scratching the disks is eliminated with this technology. A hybrid hard drive (H-HHD) also known as a solid-state hybrid drive (SSHD), uses both technologies. The flash component (otherwise used by the SSD) serves as a buffer to the physical search by actuator arms on the magnetic disk. Some hybrid drives offer performance at level with the SSD drives. However, because magnetic disks still have to be read, the reliability issues cited above remain on the hybrid hard drive solution.
The tape drive by definition is not a “hard” drive solution. The floppy disk technology is so outdated it’s not even part of the 220-902 exam objectives. Finally the digital versatile disc is a DVD and so not a built in mass memory solution.

71

You have been called in to help a user who has a monitor problem. She describes it as distorted geometry. She says that her images are stretched weirdly and that it causes the proportionality of the image to be off. What is the MOST probable cause to this condition?

A) The calibrate color setting is off
B) The resolution is set incorrectly for this monitor
C) The monitor has dead pixels
D) Your browser zoom is set incorrectly

B) The resolution is set incorrectly for this monitor

EXPLANATION:

LCD monitors will not experience distorted geometry if the resolution is set to the native resolution. So if monitor shows distorted geometry where images are stretched inappropriately, adjust the resolution. Also a low resolution can cause oversized images or icons. To adjust screen resolution, click Change display settings in the Display window. If adjusting the resolution doesn’t correct oversized images or icons, try updating the video drivers. If adjusting the resolution doesn’t correct oversized images or icons, try updating the video drivers.

72

You have been called in by a user that complains that nothing happens when he pokes at his iPhone. Your first step is to try to replicate and sure enough the touch screen is unresponsive. Which of the following solutions would you try first? (Choose two)

A) Click Start > Device Manager and reset the touch screen driver
B) If there is a case or screen protector, remove it
C) Wipe the screen with window cleaner
D) Restart the device
E) In classic view, open Control Panel and click Settings

B) If there is a case or screen protector, remove it

D) Restart the device


EXPLANATION:

The “Start” icon that takes you to Device Manager is a Windows feature that you won’t be finding on an iPhone. Some screen protectors are just thick enough to interfere with the touch screen interface. If after removing it the touchscreen works, the recommend the user gets a screen protector that is licensed for iPhone. Never use potent chemicals such as window cleaner on these screens. Only wipe them with an electronic wipe, or with a soft and lint-free cloth. Just like rebooting a PC, restarting a device can eliminate a lot of dysfunctions in a device. Just like in the first choice open Control Panel and click Settings will work on a Windows laptop (it’s actually Tablet PC Settings) just not on an iPhone.