Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CompTIA A+ > Peripherals and Custom Computing > Flashcards

Peripherals and Custom Computing Flashcards

1
Q

What is the name and data transfer rate for USB 1.1?

A

Full-speed.

12 Mbps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the name and data transfer rate for USB 2.0?

A

High-speed.

480 Mbps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the name and data transfer rate for USB 3.0?

A

Super-speed.

5.0 Gbps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the maximum number of USB devices that a computer can have?

A

127

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the maximum lengths of USB cables?

A

USB 1.1 - 3 meters
USB 2.0 - 5 meters
USB 3.0 - 3 meters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The standard USB cable has 4 pins:

A

+5V pin for power, positive and negative pins, and a ground pin.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Most USB cables are half duplex which means:

A

It can send or receive data, but not both simultaneously.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Type A and B USB connectors have how many pins?

A

4 pins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Mini- and micro- USB connectors have how many pins?

A

5 pins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Type A USB connectors are what you see on:

A

The back of a computer or on the side of a laptop.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What type of connectors are commonly used for printers?

A

Type A and Type B.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What type of connectors are often used for handheld computers, smartphones, digital cameras, etc.?

A

Mini- and micro- connectors.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

To view USB devices, root hubs, and host controllers:

A

Open Device Manager and click Universal Serial Bus Contollers to expand. Root hub and controllers are under Human Interface Devices.

Open System Information b opening Run prompt and typing msjnfo32. Expand Components, and select USB.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the name and data transfer rate for USB 1.0?

A

Low-speed.

1.5 Mbps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the disk caching component that Windows 7 and Vista offers?

A

ReadyBoost

This uses flash based memory such as flash drives to cache information for the OS at high speeds.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When troubleshooting USB devices:

A

Verify that USB is enabled in he BIOS.

Make sure the computer is running USB 3.0.

Verify connectivity.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

How many IEEE 1394 (FireWire) devices can a computer have?

A

63

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the specifications for IEEE 1394a, 1394b, FireWire 400, and FireWire 800?

A

IEEE 1394a
Data Transfer Rate: 400 Mbps
Connector Type: 4-conductor and 6-conductor
Cable Length: 4.5 meters

IEEE 1394b
Data Transfer Rate: 800, 1600 and 3200 Mbps
Connector Type: 9-conductor
Cable Length: 10 meters

FireWire 400
Data Transfer Rate: 400 Mbps
Connector Type: 4-conductor and 6-conductor
Cable Length: 4.5 meters

FireWire 800
Data Transfer Rate: 800 Mbps
Connector Type: 9-conductor
Cable Length: 10 meters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The original 9-pin serial ports are called:

A

DE-9 connectors

Also known as COM ports

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the difference between serial and parallel?

A

Serial sends data one bit at a time.

Parallel can send more than one bit simultaneously, usually in multiples of 8.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What colors are PS/2 keyboard ports and PS/2 muse ports?

A

PS/2 keyboard ports are purple.
PS/2 mouse ports are green.

Keyboards and mice connect via a 6-pin Mini-DIN connector.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is a short range low speed wireless network primarily designed for peer to peer mode between devices?

A

Bluetooth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Bluetooth devices connect to each other to form:

A

A personal area network (PAN)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What are the different Bluetooth classes?

A

Class 1: 100 mW, 100 meters
Class 2: 2.5 mW, 10 meters
Class 3: 1 mW, 1 meter

Most common Bluetooth devices are Class 2.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is used to type text and numbers into a word processor or other application?

A

Keyboard

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is used to control the GUI, it works in two dimensions and has a scroll wheel and two buttons?

A

Mouse

27
Q

What enables the user to control two or more computers from one keyboard, video display, and mouse?

A

KVM switch

28
Q

What is a video display that detects the presence of either a finger, stylus, or light pin that enables interaction with Windows?

A

Touch screen

29
Q

What takes still photographs and/or video using an electronic image sensor?

A

Digital Camera

30
Q

What enables the user to monitor other areas of the home or building, communicate via video telephony, and take still images?

A

Webcam

31
Q

What is used to optically scan images and other objects and convert them into digital images?

A

Scanner

32
Q

What enables the user to record his or her voice or other sounds to the computer?

A

Microphone

33
Q

What analyzes what a person is, used for authentication purposes, for example, a fingerprint reader?

A

Biometric devices

34
Q

What reads bar codes?

A

Bar code reader

35
Q

What musical instrument digital interface enables computers, music keyboards, synthesizers, digital recorders, samplers etc.?

A

MIDI device

36
Q

What is the data transfer rate of USB 3.0?

A. 12 Mbps
B. 400 Mbps
C. 480 Mbps
D. 5 Gbps

A

D. 5 Gbps

37
Q

What is the maximum amount of USB devices a computer can support?

A. 4
B. 63
C. 127
D. 255

A

C. 127

38
Q

Which type of USB connector is normally found on a desktop PC or laptop?

A. Type A
B. Type B
C. Type C
D. Type D

A

A. Type A

39
Q

What is the data transfer rate of IEEE 1394a?

A. 400 Mbps
B. 800 Mbps
C. 1,600 Mbps
D. 3,200 Mbps

A

A. 400 Mbps

40
Q

You just installed a barcode reader to a laptop. What should you do next?

A. Adjust the light wavelength.
B. Test the reader by reading bar codes.
C. Program the reader to recognize codes.
D. Point the bar code reader at someone.

A

C. Program the reader to recognize codes.

41
Q

What does a KVM do?

A. Connects a computer to Bluetooth enabled devices
B. Allows multiple users to share a single computer
C. Networks multiple computers together
D. Connects multiple computers to save resources

A

D. Connects multiple computers to save resources

42
Q

You are installing a wireless keyboard to a PC. What does the PC require?

A. Bluetooth dongle
B. Infrared connection
C. Ethernet connection
D. USB port

A

A. Bluetooth dongle

43
Q

A user calls you with a complaint that none of his USB devices are working. What is the most probable cause?

A. The USB 3.0 controller has failed.
B. The root hub is not configured.
C. USB is disabled in the BIOS.
D. USB is disabled in Windows.

A

C. USB is disabled in the BIOS

44
Q

You had to disable the USB ports on an infected PC after a virus outbreak. However, the user needs to transfer large files (1.2 GB each) from a home computer to a work computer. Hat should you use to transfer the files?

A. Network card
B. Infrared device
C. IEEE 1394 device
D. CD-ROM burner

A

C. IEEE 1394 device

45
Q

You plug a USB device into the front panel port of a PC but nothing happens. What is the most likely cause?

A. The front panel connectors are not plugged into the motherboard.
B. You plugged a USB 3.0 device into a USB 2.0 port.
C. You need to reboot the computer.
D. You plugged a USB 2.0 device into a USB 3.0 port.

A

A. The front panel connectors are not plugged into the motherboard.

46
Q

What is needed for audio/video workstations?

A

Specialized A/V cards, fast hard drives, and multiple monitors.

47
Q

What type of PC configurations are common in electrical engineering, architecture, drafting and other engineering arenas?

A

CAD and CAM workstations

48
Q

What is needed for CAD/CAM workstations?

A

Powerful CPUs and video cards, and as much RAM as possible.

49
Q

What is a computer that runs one or more virtual operating systems?

A

Virtualization workstation

50
Q

What allows multiple virtual operating systems to run at the same time on a single computer?

A

Hypervisor

51
Q

What are the two different types of hypervisors?

A

Type 1: Native
This hypervisor runs directly on the host computer’s hardware.

Type 2: Hosted
This hypervisor runs within the operating system. This is less efficient than Type 1.

52
Q

What is needed for virtualization workstation?

A

Powerful CPU and as much RAM as possible.

53
Q

What is a thin client?

A

A computer that has few resources compared to a a typical PC. They are diskless workstations because they have no hard drive or optical discs.
Viruses have a hard time sticking around a thin client because the RAM is completely cleared every time it is turned off.

54
Q

What is a thick client?

A

A PC. It performs the bulk of data processing operations by itself and has a disk to store the OS, user profile, files, etc.

55
Q

What is needed for a home server PC?

A

Fast network adapter and a RAID array, and needs to be part of a network such as HomeGroup.

56
Q

This PC configuration can take the place of a Blu-ray player, DVD player, CD player, etc.

A

Home Theater PC (HTPC)

57
Q

What are the requirements for a HTPC?

A

Small form factor (micro-ATX or mini-ITX), quiet desktop case with silent video card, surround sound audio, an HDMI output, and possibly a TV tuner

58
Q

What is required for a Gaming PC?

A

A powerful CPU, lots of RAM, liquid cooling, high-end video card and specialized GPU, above average sound card, fast network adapter and strong internet connection.

59
Q

What is SLI?

A

Scan Line Interleave is when a computer has two or more identical video cards that work together for greater performance and higher resolution.

60
Q

Which of the following is the best type of custom computer for use with ProTools?

A. CAD/CAM workstation
B. Audio/Video Workstation
C. Gaming PC
D. HTPC

A

B. Audio/Video Workstation

61
Q

What do CAD/CAM workstations require most?

A. Liquid cooling and RAM
B. TV tuner and silent hard drive
C. Surround sound card and joystick
D. Powerful CPU and RAM

A

D. Powerful CPU and RAM

62
Q

Your organization needs to run Windows 7 in a virtual environment. The OS is expected to require a huge amount of resources for a powerful application it will run. What should you install Windows 7 to?

A. Type 2 hypervisor
B. Gaming PC
C. Type 1 hypervisor
D. Thin client

A

C. Type 1 hypervisor

63
Q

What are some of the elements of a home server PC? (Select the two best answers.)

A. Liquid cooling
B. Fast network adapter 
C. The best CPU
D. RAID array
E. Gamepad
A

B and D.

Fast network adapter and a RAID array.

64
Q

You just set up an HTPC. However, the Windows Media Center live TV option is not working. All connections are plugged in, and all the other portions of Windows Media Center work. What is the most likely cause of the problem?

A. The coax cable is plugged into the antenna port.
B. Media Center needs to be reinstalled.
C. Windows 7 libraries are malfunctioning.
D. The computer overheated.

A

A. The coax cable is plugged into the antenna port.

CompTIA A+ (18 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions