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CompTIA > CompTIA ITF+ Part 1 > Flashcards

CompTIA ITF+ Part 1 Flashcards

To learn the material pertaining to the CompTIA IT Fundamentals Exam

1
Q

What are the four stages of the computing process?

A

Input, processing, storage and output

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2
Q

What is a LAN?

A

A Local Area Network (LAN) is a group of computers or other network devices in the same location that can communicate with one another

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3
Q

What is the device that connect devices on a LAN?

A

A switch

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4
Q

What is a WAN?

A

A WAN is a Wide Area Network connecting two or more LANs over a larger geographical area using a device called a router.

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5
Q

How do LANs connect to WANs?

A

Via a router which connects to the LAN’s switch

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6
Q

What are RACS?

A

Remotely accessed computer systems (RACS) are servers which give one access to online apps (e.g. Office Online). They enhance local capabilities.

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7
Q

What are specialized computer systems?

A

Specialized computer systems are computer systems that perform specific tasks.

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8
Q

What are I/O devices?

A

Input/output devices are devices capable of sending data (output) to a computer and receiving data from a computer (input).

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9
Q

How is a CPU’s speed measured?

A

A CPU’s measured based on how many things it can do in one second under perfect conditions. It is measured in Hertz, typically gigahertz, that is billions of cycles per second.

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10
Q

In terms of complexity, what are the two types of modern CPUs available?

A

64-bit vs 32-bit

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11
Q

How do 64-bit and 32-bit processors compare?

A

Sixty-four bits CPUs are vastly more powerful and complex than thirty-two bits. 32-bit CPU/OS can only handle up to 4 GB of RAM.

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12
Q

What is passive cooling?

A

Passive cooling utilizes natural conduction, convection, and radiation to cool a component. The most common type uses a heat sink which is a block of heat-conductive metal such as aluminum affixed to a chip with some heat-conductive thermal paste. The heat sink has spikes or baffles that increase its surface area. Heat wicks away from the chip into the heat sink and dissipates into the air.

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13
Q

What is active cooling?

A

Active cooling requires the use of energy specifically dedicated to cooling the component. In most PCs, a fan is strapped to the CPU’s heat sink in an attempt to circulate air through the heat sink and away from the CPU to keep it cool.

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14
Q

What do heat sinks do?

A

They help heat dissipate into air.

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15
Q

How does liquid cooling work?

A

Liquid cooling pulls heat into fluid.

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16
Q

What is RAM?

A

Random access memory holds all active processing on a computer including the OS and running applications and data. RAM only temporarily stores data. When you turn off the computer, all the data stored in RAM disappears.

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17
Q

What is the amount of usable RAM on a computer called?

A

System memory, the total capacity of which puts a hard limit on how much stuff a computing device can work on at one time. Total capacity is measured in GB.

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18
Q

What are common RAM capacities?

A

The most common RAM size you can find in everyday laptop PCs nowadays is 8GB. Some lower-end models come with 4GB and in some cases only 2GB. Higher-end mainstream laptop models oftentimes feature 12GB and 16GB. You can find high-performance gaming laptops and mobile workstations with 24 or even 32 Gigabytes

19
Q

What is a motherboard?

A

A device that provides connectivity for the various components of a computer. Everything plugs directly into the motherboard.

20
Q

What style of electricity does the US electric grid run on?

A

Alternating Current (AC)

21
Q

What style of electricity do computing devices run on?

A

Direct Current (DC)

22
Q

What is a PSU?

A

A power supply unit (PSU) is a component found in desktop computers that handles the conversion from AC to DC.

23
Q

What kind of connector is used by very old mice and keyboards?

A

PS/2 connectors

24
Q

What are the most common connectors for I/O devices these days?

A

Universal Serial Bus (USB)

25
Q

What are the different types of video connectors?

A

HDMI ports, DisplayPorts (mainly with Apple), VGA ports, DVI ports

26
Q

What is an eSATA port typically used for?

A

For connecting external hard drives (not currently used much)

27
Q

What is the name of the ethernet cable used to connect networks?

A

RJ-45

28
Q

What is the color coding typically used for audio connectors?

A

Pink for microphone, green for speakers, and black for other devices

29
Q

What is the name of this connector?

A

USB Type A

30
Q

What is the name of this connector?

A

USB Type B

31
Q

What is the name of this connector?

A

USB Type C

32
Q

What is the name of this connector?

A

USB 3.0

33
Q

What is the name of this connector?

A

USB Mini A

34
Q

What is the name of this connector?

A

USB Mini B

35
Q

What is the name of this connector?

A

USB Micro A

36
Q

What is the name of this connector?

A

USB Micro B

37
Q

What is the name of this connector?

A

USB Micro B Super Speed

38
Q

What is the name of this connector?

A

Firewire 400

39
Q

What is the name of this connector?

A

Firewire 800

40
Q

What is the difference between VGA, DVI and HDMI?

A

The difference is in both the quality of the signal that they carry and the type of signals. VGA was standard for a long. DVI was an improvement. However, both only carry video signals. HDMI (high-definition multimedia interface), on the other hand, carries high-definition audio and video.

41
Q

How fast does a black USB port, USB 2.0 run?

A

480 Mbps

42
Q

How fast does a blue USB port, USB 3.0 run?

A

5 Gbps

43
Q

How fast does a USB 3.1, USB Type C, port run?

A

10 Gbps

CompTIA (4 decks)

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