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CompTia 901 A+ > Test Questions > Flashcards

Test Questions Flashcards

1
Q

What is the best & max distance of infrared?

A

1 Meter works best No interference can go up to 30

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2
Q

Basic Rate Interface (BRI) is a standard for what?

A

Integrated Service Digital Network (ISDN) for household service

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3
Q

Basic Rate Interface (BRI) Features?

A

-Two Data Channels -One Control Channel -Dial Up Connetion

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4
Q

BRI one or two channels?

A

The two channels can be used independently or together to provide 128 kbps total bandwidth.

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5
Q

You are configuring a DSL connection what will you need as part of the configuration

A

RJ-11 Filters or Splitters

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6
Q

RG-6 Cables are used for what?

A

Cable Internet Access

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7
Q

Multimode Fiberoptic Cables Features

A

Supports 10-Gigabit Ethernet Speed

-Max Length 300 meters

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8
Q

Single Mode Fiberoptic Cables Features

A

Supports 10-Gigabit Ethernet

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9
Q

Twisted Pair Cat 6 & 7 Features

A

Supports 10-Gigabit Ethernet -Max Length 100 Meters

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10
Q

Bridge

A

Used to connect a local area network (LAN) to another local area network that uses the same protocol. Like LANs in adjacent buildings

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11
Q

Switch

A

Connects host on the same subnet . Forwards signals to only the port connected to the destination device

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12
Q

Which duplex does a Switch operate in ?

A

Full duplex. Devices can either send or receive data at any given time.

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13
Q

Router

A

Connect two networks together that have different subnets. Router is how you leave your local network.

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14
Q

How does a Router move data between hosts?

A

Uses the IP address within a packet to move packets between networks

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15
Q

Hub

A

Send data to all devices on the network because it cannot distinguish between individual hosts

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16
Q

Ethernet over Power

A

Allows network communications to be transmitted over existing AC power lines.

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17
Q

What type of devices us Power Over Ethernet technology

A

Provides data and electric power to devices such as

(WAP’s) Wireless Access Points

Cameras

VoIP phones.

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18
Q

How does DHCP assign IP address?

A

-The workstation must request IP address info

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19
Q

DNS & Host File helps you do what?

A

Resolve Host Name into its associated IP address.

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20
Q

ipconfig /flushdns

A

Deletes local DNS names that have been cached

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21
Q

When to use Static IP addresses?

A
  • The network has a small number of host
  • The network will not change or grow
  • Some host must always have the same IP address
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22
Q

Will a 64 bit processor work on a 32 bit operating system.

A

Yes but you will only have access to up to 4gb of memory. You must install 64 bit operating system to get access to more.

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23
Q

Laser Printer prints vertical black line on every page?

A

The corona wire is dirty

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24
Q

Tone Generator and Probe use?

A

injects a signal onto the cable to be traced

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25
Q

Loopback Plug Use?

A

Used to test whether the (NIC) Network Interface Card can send and receive data properly

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26
Q

Cable Stripper Use

A

cut away plastic jacket or coating from a network cable

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27
Q

Which display is best for deeper blacks?

A

OLED don’t require a backlight so they have a much better ratio with deeper blacks

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28
Q

Digital Light Processing is used on what device?

A

Projectors

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29
Q

DVI and VGA have what type of signal?

A

Support Video but not audio

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30
Q

Easiest ways to access internal components on a laptop

A

Remove the keyboard Open a panel on the bottom of the notebook

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31
Q

DDR4 & DDR3 max memory capacity

A

DDR4 512GB DDR3 128GB

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32
Q

Minimum configurations needed to communicate with Internet

A
  • IP address
  • Subnet Mask
  • Defaultt Gateway
  • DNS Server Address
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33
Q

When would you see the phrase Healthy (Logical Drive)

A

A basic hard disk can only have four primary partitions. The fouth partition is automatically configured as an extended partition that hold logical drives

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34
Q

On a basic hard disk what does the status of healthy partiontions reflet

A

Healthy (Primary Partition)

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35
Q

What is ATSC?

A

In North America Digital TV signals are sent using ATSC standard.

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36
Q

What is NTSC

A

Is an analog TV signal standard that was replaced by the Digital ATSC

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37
Q

When are bridge clips used?

A

Multi-GPU configurations utilizing more than on video card

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38
Q

can be used by an Operating System (OS) to communicate with hardware (2)

A
  • Device drivers
  • System BIOS
39
Q

BIOS types that can be updated without removing the BIOS chip from a motherboard?

A

Flash Memory EEPROM (Electrical Erasable Programmable Read Only Memory)

40
Q

Features of UEFI

A

DRM support

GUI mode

Mouse support

Secure boot

Network access

41
Q

DRM support

GUI mode

Mouse support

Secure boot

Network access

A

Features of UEFI

42
Q

(Layer 2) device designed to forward data packets between Local Area Network (LAN) segments/host

43
Q

Network segment

A

A specific connection between two computers, or between two pieces of hardware such as a bridge or router.

44
Q

Which device establishes a communication channel over a PTSN?

A

Analog Modem

45
Q

A device consisting of multiple ports used for the purpose of cable management is known as

A

Patch Panel

46
Q

A type of network device that amplifies received signal so it can be transmitted over greater distance without loss in quality

47
Q

Repeater

A

A type of network device that amplifies received signal so it can be transmitted over greater distance without loss in quality

48
Q

Patch Panel

A

A device consisting of multiple ports used for cable management

49
Q

A network device that allows to overcome limitations related to the maximum allowable cable segment length

50
Q

Power over Ethernet or PoE

A

Passes electric power along with data on twisted pair Ethernet cabling.

51
Q

Punchdown tool

A

Used for attaching wires to a patch panel

52
Q

How does ATSC card receive signal?

A

The TV must be hooked up to some type of external antenna, such as a coax cable referred to as the TV feed.

53
Q

What does the Wattage rating indicate?

A

How much power can be supplied to various devices.

54
Q

A plenum space

A

is a part of a building that can facilitate air circulation for heating and air conditioning systems,

55
Q

Flashing the BIOS or UEFI firmware is often required when?

A

to upgrade system components, such as to upgrading to a faster processor.

56
Q

Different WIFI Standards (5)

A

802.11a 802.11b 802.11g 802.11n 802.11ac

57
Q

802.11ac Specifications

A

Operates at 2.5 & 5.0 GHz Maximum speed of 1300 Mbps.

58
Q

802.11a Specifications

A

Operates at 2.5 & 5.0 GHz Maximum throughput of 54 Mbps.

59
Q

Building Virtualization Workstation

A

Heavy load on the host RAM and CPU. Video and audio performance is of secondary concern.

60
Q

Building CAD / CAM workstation

A

Heavy load on CPU and RAM.

  • ECC memory Strongly recommended
  • A high ­end video adapter
61
Q

Most important Specs of Power Supply Replacement (3)

A

Output Wattage

Form Factor

Processor Connector

62
Q

Which of the pins on the power supply’s 24­pin ATX connector can be bridged to turn on the power supply?

A

Pin 16 on a 24­pin ATX connector is the Power_On wire. When pin 16 is bridged with a ground pin (i.e., pins 7, 15, 17, and 18), the power supply will turn on, allowing you to measure the voltage.

63
Q

IC extractor

A

is a tweezer ­like tool, used to remove integrated circuit chips.

64
Q

A 2.0 USB supports a maximum bandwidth of?

65
Q

A 2.0 USB port supports a maximum power consumption of?

A

500 milliamps.

66
Q

How to convert from NTFS TO FAT32?

A

Back-up

Reformat

Restore the Back-up

67
Q

What needs to be complete before flashing the BIOS?

A

Identify the Motherboard Type

Download the flash utility from the manufacturer’s website.

68
Q

Dirty Drum causes

A

Spots at regular intervals on the page

69
Q

An accelerometer

A

measures the movement of an object. -Fitness tracking devices can use them to determine user activity levels.

70
Q

Bone conduction transducer.

A

Wearable smart glasses that allow the user to hear audio

71
Q

Optical prism

A

Wearable glasses presents a see­ through head­ mounted display to the user.

72
Q

Optical Pulse Sensor

A

Uses pulse oximetry to determine the users pulse and is often used in wearable fitness tracking devices.

73
Q

Thin Clients Primary Requirement to get setup?

A

Needs to be able to connect to a remote desktop session, -Select the fastest network adapter supported by the network it will be connected to. Gigabit speeds (or faster) are recommended.

74
Q

What is the signal source in a Multimode Fiber Optic Cable?

A

(LED) Light Emitting Diode

75
Q

What is the signal source in a Single Fiber Optic Cable?

76
Q

What the next step after physically installing a Hard disk and configuring it in the CMOS?

A

partition the disk and format it with a file system using Disk Management.

77
Q

S/PDIF port on the sound card indicate

A

is a digital audio output

78
Q

Mini­TRS port on the sound card indicate

A

analog audio input and output

79
Q

A mini­DIN connector

A

is used on video cards for S­-video input and output.

80
Q

How to get best performance from a dual video card configuration

A

both video cards should be identical. -The motherboard must be compatible with either SLI (used by NVIDA cards) or CrossFire (used by AMD cards).

81
Q

This event can require more memory and can cause problems if there is not enough memory when it occurse.

A

Software installation

82
Q

Memory is not properly seated or missing or the motherboard is defective.

A

First boot of a new computer

83
Q

Incompletely or improperly doing this can cause errors that appear to be memory­related.

A

Hardware installation or removal

84
Q

The memory is not compatible and was not installed and configured properly.

A

Memory upgrade

85
Q

What replaced NTSC standard in North America?

86
Q

DMS­59 connector is used?

A

to allow multiple video ports from a single connection.

87
Q

tracert

A

defines destination IP address. It also displays the delay between hops.

88
Q

ping

A

Used to test the reachability to server, but will not show where communication is blocked.

89
Q

ipconfig

A

displays the hosts TCP/IP configuration.

90
Q

nslookup

A

Used to show the translation of the server name to IP address, but will not show where communication is blocked.

91
Q

r

defines destination IP address. It also displays the delay between hops.

92
Q

r

Used to test the reachability to server, but will not show where communication is blocked.

93
Q

r

displays the hosts TCP/IP configuration.

94
Q

r

Used to show the translation of the server name to IP address, but will not show where communication is blocked.

CompTia 901 A+ (25 decks)

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