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CompTIA Exams > Infrastructure > Flashcards

Infrastructure Flashcards

1
Q

What is attenuation in the context of Wi-Fi signals?

A

The loss of signal strength as you move away from the router

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2
Q

Why might a computer crash frequently?

A

A bad memory stick

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3
Q

LAB

A
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4
Q

What is a SOHO network?

A

A network for small offices or home offices

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5
Q

Which of the following BEST describes smart lights?

A

They allow you to set a lighting schedule and power them on and off when you are away from home.

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6
Q

Listen to exam instructions
What does hot-swappable mean for USB devices?

A

You can add or remove them while the system is running.

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7
Q

Which term describes the small wires that connect the areas of a motherboard?

A

Bus

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8
Q

Listen to exam instructions
What do laser printers use to print images?

A

Toner

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9
Q

What is the purpose of setting an IP address on a printer?

A

To connect to a local area network (LAN)

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10
Q

What are the two main types of printers?

A

Laser and Inkjet

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11
Q

What is the role of a hypervisor in virtualization?

A

It manages the virtual machine environment and facilitates interaction with the host hardware and network.

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12
Q

Which type of connector is becoming most common for new and high-quality devices?

A

USB Type C

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13
Q

LAB

A
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14
Q

What type of memory is the UEFI stored on?

A

ROM

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15
Q

What equipment is required for satellite Internet?

A

Satellite dish, modem, and router

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16
Q

Which of the following is a short-term storage device?

A

RAM

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17
Q

What happens when you connect your mobile device to Bluetooth earbuds?

A

You create a personal area network (PAN)

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18
Q

What does a cable tester do?

A

Checks if a cable is working

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19
Q

What is the term for the device that converts fiber optic signals into a form that devices can understand?

A

Fiber Optical Network Terminal

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20
Q

What is a key advantage of Hard Disk Drives (HDDs) over Solid State Drives (SSDs) in terms of storage size?

A

HDDs can store more data than SSDs.

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21
Q

A small business has doubled in size over the past year. The company’s IT consultant is recommending the addition of a computing device that will provide central access to business resources.

Which of the following terms describes the type of device needed?

A

Sever

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22
Q

What is a peer-to-peer relationship in networking?

A

Both computers can request and provide resources

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23
Q

Listen to exam instructions
What is an example of how automation is helping those with disabilities?

A

By allowing them to use computers to move a cursor with their thoughts.

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24
Q

What is one of the main functions of a UPS?

A

To protect sensitive electronics from electrical spikes and surges

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25
Q

LAB

A
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26
Q

LAB

A
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27
Q

Which protocol was created for transferring data to and from SSDs?

A

NVMe

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28
Q

What is the main function of a modem?

A

To translate signals from the ISP into a form your devices can understand

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29
Q

Listen to exam instructions
During a science project presentation on IoT devices, Sarah explains how some devices can help conserve water.

Which IoT device is she most likely talking about?

A

Smart sprinklers that adjust watering based on weather forecasts

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30
Q

Listen to exam instructions
What is the significance of frame rate in video output?

A

It affects how smooth graphics and animations appear

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31
Q

How does a hypervisor manage the CPU for virtual machines?

A

It divides the real CPU so multiple virtual machines can use it.

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32
Q

Listen to exam instructions
What is the main advantage of HDMI over older connections like VGA?

A

HDMI can carry both audio and video.

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33
Q

What property of radio waves is described as the height of peaks and the depth of troughs?

A

Amplitude

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34
Q

Listen to exam instructions
What tool is used to connect an RJ-45 cable to its clip?

A

Crimper

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35
Q

Why are internet protocols like TCP/IP important?

A

They allow different networks to communicate with each other.

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36
Q

Listen to exam instructions
What type of hypervisor is needed to use virtualization on an existing OS?

A

Type II hypervisor

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37
Q

What can the hypervisor do if a virtual machine needs more memory?

A

It can assign more memory from the real computer to the virtual machine.

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38
Q

What is one benefit of cloud storage?

A

It can expand or contract based on your needs

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39
Q

What is the significance of frame rate in video output?

A

It affects how smooth graphics and animations appear

40
Q

What is the purpose of network protocols?

A

To create a common set of rules for network communication

41
Q

What is an intranet?

A

A private LAN for a company or organization

42
Q

Which of the following are optical storage devices? (Select three.)

A

Dvd, cd, Blue ray disc

43
Q

Which of the following best describes a Wide Area Network (WAN)?

A

A network that spans a large geographical area, often connecting multiple smaller networks

44
Q

What format uses four sets of numbers with periods between them to represent an IP address?

A

Dotted decimal notation

45
Q

The Institute of Electrical and Electronics Engineers (IEEE) established what standards for wireless communications?

A

802.11

46
Q

Which type of cable is most commonly found inside houses?

A

Twisted pair copper wire

47
Q

What feature allows switches to send electricity through Ethernet cables?

A

PoE

48
Q

What is the purpose of video memory in a GPU?

A

To process picture information quickly

49
Q

What is the purpose of setting an IP address on a printer?

A

To connect to a local area network (LAN)

50
Q

What type of connection do most wired NICs use?

A

RJ-45

51
Q

What does LAN stand for?

A

Local Area Network

52
Q

What is one way cloud storage can help with collaboration?

A

It allows you to share files and set permissions.

53
Q

How is the 2.4 GHz frequency better than the 5 GHz frequency?

A

It can travel longer distances.

54
Q

What hardware component processes data?

A

Central Processing Unit

55
Q

How do robots help keep miners safe?

A

By exploring and mapping areas that are too dangerous for humans

56
Q

What unit is used to measure latency?

A

Milliseconds (ms)

57
Q

What is peer-to-peer architecture?

A

A system where every device can act as both a client and a server

58
Q

What is the main difference between ADSL and SDSL?

A

ADSL has faster download speeds than upload speeds, while SDSL has equal download and upload speeds.

59
Q

What is a soft robot?

A

A robot designed to handle delicate items gently with flexible materials

60
Q

What is a downside to using VR headsets?

A

They cause motion sickness.

61
Q

Which type of memory is non-volatile?

A

ROM

62
Q

Why is it better to have more than two memory slots on a motherboard?

A

It allows for easier and cheaper memory upgrades

63
Q

Which 802.11 standard was the first to allow more than one frequency band?

A

802.11n

64
Q

What is latency?

A

The time it takes for a signal to travel from your computer to the internet server.

65
Q

What is a “sandbox” in the context of virtual servers?

A

A virtual environment for testing new apps and programs safely.

66
Q

Which of the following BEST describes smart speakers?

A

They are voice-controlled devices that allow you control over other devices in your home.

67
Q

Why is it important to know the differences between ISPs in your area?

A

To choose the best one for your needs

68
Q

Why is RAM an example of a volatile storage device?

A

Data stored in RAM is only stored as long as there is a power source sending constant power to the chip.

69
Q

What is the primary function of a firewall?

A

To filter network traffic

70
Q

What is one advantage of using multiple guest OSs on a single physical computer?

A

They can perform different tasks independently

71
Q

What is the Internet?

A

A system of computer networks all over the world talking to each other

72
Q

What happens when you connect your mobile device to Bluetooth earbuds?

A

You create a personal area network (PAN)

73
Q

Why do most Wi-Fi routers support multiple standards?

A

To ensure compatibility with both old and new devices

74
Q

Which interface is most commonly used to connect storage to a computer motherboard?

A

SATA

75
Q

What is a Network Attached Storage (NAS)?

A

A storage device connected to a local area network

76
Q

What hardware component processes data?

A

Central Processing Unit

77
Q

What is a Type I hypervisor?

A

A hypervisor installed directly on the computer and interacts with its hardware.

78
Q

What is the primary function of a motherboard in a computer?

A

To link all the parts together and send electrical signals between them

79
Q

Which of the following uses persistent flash memory chips to store data?

A

SSD

80
Q

What should you be cautious of when downloading drivers from websites other than the manufacturer’s?

A

Corrupt software or malware

81
Q

What is the main function of a projector when connected to a computer?

A

To display the computer screen to a larger audience

82
Q

In a client-server model, what role does the server play?

A

It fulfills client requests

83
Q

What is a hybrid cloud

A

A combination of public and private cloud models

84
Q

What are the three types of cables that carry Internet data?

A

Fiber optic cable, coaxial cable, and twisted pair copper wire

85
Q

How do enterprise APs typically connect to the main network?

A

Using an Ethernet cable

86
Q

How is the 5 GHz frequency better than the 2.4 GHz frequency?

A

It has less interference from other devices

87
Q

Which cloud service model is best for businesses that want to save money and time by not handling physical servers themselves?

A

Infrastructure as a Service (IaaS)

88
Q

Which term is used to describe companies who offer cloud storage in their data centers?

A

Cloud storage providers

89
Q

Why is it important to know the exact make and model of your hardware when installing drivers?

A

To find the correct driver

90
Q

What property of radio waves is described as the height of peaks and the depth of troughs?

A

Amplitude

91
Q

After changing the signal, where does the modem send the signal?

A

To the router

92
Q

What is an intranet?

A

A private LAN for a company or organization

93
Q

What is a virtual machine (VM)?

A

A guest operating system installed on a host computer using virtualization software.

94
Q

What is the role of a firewall in a LAN?

A

To block unauthorized access

95
Q

What is Virtual Reality (VR) primarily used for?

A

Gaming and training

CompTIA Exams (19 decks)

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