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CompTIA A+ 1001 > 1001 Stuff > Flashcards

1001 Stuff Flashcards

1
Q

What’s a voltage tester or volt ohm for?

A

To test input voltage

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2
Q

What are the steps of the troubleshooting theory?

A

Consider policy before making changes, Step 1. Identify the issue, question user, Ask about environmental issues and infrastructure, Review system and app logs, Step 2. Establish a theory of probable cause, Step 3. Test the theory to determine cause, If theory isn’t right try a new one, Call in help if needed, Step 4. Establish a plan of action to solve problem and implement solution, Step 5. Check full functionality and use preventative measures if needed. Step 6. Document findings, actions, and outcomes.

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3
Q

Which item is not likely to be found in a technician’s toolkit?

A

EMP

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4
Q

A tech might use a voltage tester or this tool to check power coming out of a wall socket.

A

Voltmeter

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5
Q

The first step in troubleshooting is to..?

A

Identify the problem

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6
Q

After a problem is solved, which is an appropriate step?

A

Take preventative measures

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7
Q

What’s a system unit?

A

It’s the computer, where the CPU, RAM, Hard drives, and etc.

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8
Q

What’s a monitor?

A

It’s allows you to see what you’re doing and it is also called an output interface.

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9
Q

What’s a keyboard and a mouse for?

A

Allows you to make inputs on the computer.

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10
Q

What’s a printer for?

A

Provides paper output for whatever may be needed.

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11
Q

What are speakers for?

A

They provide sound and playback.

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12
Q

What’s a game controller for?

A

A tool used to control games.

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13
Q

What’s a web cam for?

A

A used to look at one another online.

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14
Q

What’s an external hard drive for?

A

A tool used to provide external storage. Portable to bring saved things to other systems.

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15
Q

What’s a headset for?

A

Listening to sounds and microphone for input.

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16
Q

What’s a microphone for?

A

Talking inside computer for communication.

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17
Q

What’s a universal serial bus?

A

A universal connector for a multitude of things like keyboards, a mouse, phones, and etc.

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18
Q

What’s a network cable connection?

A

Used with RJ-45’s to get onto a wired network.

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19
Q

What are sound connectors?

A

They’re usually colored round connectors used for sound systems like speaker systems and etc.

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20
Q

What is a Digital Visual Interface (DVI)?

A

An older type of video connection.

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21
Q

What are display ports?

A

Ports with notch on one side

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22
Q

What are HDMI (High-Definition Multimedia Interface) ports?

A

A common connector used for multiple video purposes.

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23
Q

What’s a power connection?

A

A connection used for a computer to run by use of electricity.

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24
Q

What’s a mini-DIN (PS/2)?

A

Older ports that were once used for both a keyboard and a mouse.

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25
Q

What’s a parallel port (LPT port)?

A

An older PC port used almost mainly for printers.

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26
Q

What’s a serial port?

A

A port used to connect a serial device onto a computer that’s transmits one bit at a time.

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27
Q

What’s a video graphics array (VGA)?

A

An older port that was used to push monitors.

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28
Q

What’s an s-video connector?

A

Transmits electrical signals over wires to represent original videos.

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29
Q

What’s an anti-theft connector?

A

A port that allows you to put a cable inside it to prevent it from being stolen.

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30
Q

What’s a mini-display port?

A

A port with a digital display for high definition.

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31
Q

What’s a USB-C connection?

A

A smaller version of the USB-A connection that’s for power and data transmitting.

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32
Q

What’s an SD card slot?

A

A port used for the insertion of an SD card.

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33
Q

What’s an optical drive for?

A

Using disc and CD’s.

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34
Q

What’s a motherboard?

A

The board where all the innards of the system unit are connected together.

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35
Q

What’s a ram stick?

A

Random access memory in the computer where data is kept to be accessed.

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36
Q

What’s a central processing unit (CPU)?

A

The brain of the computer where all the functions are peformed.

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37
Q

What’s thermal paste used for?

A

Paste that is used between a heat sink and a CPU/GPU

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38
Q

What’s an M.2. SSD?

A

The M.2 SSD is used to enable high-performance storage in thin, power-constrained devices.

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39
Q

What are (PCIe) expansion slots?

A

A PCIe or PCI express slot is the point of connection between your PC’s “peripheral components” and the motherboard.

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40
Q

What’s a chipset do?

A

It defines all the different features that define what a motherboard can do.

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41
Q

What’s the purpose of front panel connections?

A

Connectors that allow for use of the on/off switch and reset button.

42
Q

What do M.2 SSD and hard drives do?

A

Store data when I’m not using the data.

43
Q

What’s happens when RAM is in use?

A

It pulls data off of SSD’s and hard drives to use when the program is running.

44
Q

What is a Raspberry pi used for?

A

It’s a super mini computer that plugs into a monitor or tv and uses both a keyboard and mouse.

45
Q

What does a computer always consist of?

A

A CPU, RAM, mass storage, and an operating system.

46
Q

What are examples of computers?

A

Laptops, mobile devices, and (IoT) internet of things.

47
Q

Is a printer an output device?

A

Yes

48
Q

Are microphones, keyboards, and web cams input devices?

A

Yes

49
Q

This external connector supports connecting to a network..

A

RJ-45

50
Q

Which component is not installed directly onto the motherboard?

A

Thermal paste

51
Q

In CPU what are bits?

A

8 bits across

52
Q

What’s a byte?

A

8 bits

53
Q

What’s the machine language of CPU?

A

The code book or 1’s and 0’s

54
Q

What does a programmer do?

A

Uses machine language to talk to a CPU and get work done.

55
Q

What are some facts about CPUs?

A

They run programs, have internal features to process commands, run code based on machine language, and use pipelines to optimize processing commands

56
Q

What’s 1 Hertz?

A

1 cycle per second.

57
Q

What’s 1 GHz?

A

1 billion cycles per second

58
Q

What do most motherboards max out around?

A

400 Mhz

59
Q

What’s 1 MHz?

A

1 million cycles per second

60
Q

What’s overclocking?

A

Taking a computer component and running it a specification higher than the manufacturer rated it.

61
Q

What is hyper-threading?

A

One pipeline that can handle two incoming pieces of code the the same time.

62
Q

What are multiple core CPUs?

A

Has many cores that allows a CPU to do many tasks at a time.

63
Q

What do CPUs have?

A

A clock speed commonly measured in GHz (billion of cycles/sec)

64
Q

What makes do CPUs usually come in?

A

Intel and AMD

65
Q

What do CPUs do with system speed?

A

Multiply it to reach the max CPU speed.

66
Q

Do single CPUs often have multiple cores?

A

Yes

67
Q

What’s a pipeline stall?

A

An error that delays the processing of an instruction.

68
Q

What’s a level 1 cache?

A

Only 64K of RAM

69
Q

What’s a level 2 cache?

A

A cache that feeds the level one cache. Bigger 128K, 256K.

70
Q

What’s a level 3 cache?

A

A cache that has 6 MBytes

71
Q

What’s set asscociation?

A

How the cache can handle the right code up onto the CPU itself.

72
Q

Common cache facts..

A

CPU caching works between RAM and CPU, cache is built into the CPU, it’s common to have 3 caches in a CPU: L1, L2, and L3.

73
Q

The lists of intel names are what?

A

Nehalem (1st Gen), Sandy Bridge (2nd Gen), Ivy Bridge (3rd Gen), Haswell (4th Gen), Broadwell (5th Gen), Skylake (6th Gen), Kaby Lake (7th Gen), Coffee Lake (8th Gen).

74
Q

What does PGA stand for?

A

Pin Grid Array, also means the pins stick out.

75
Q

What does LGA stand for?

A

Land Grid Array, instead of pins it has pads and the socket has pins

76
Q

What sockets might I see on the exam? (I need pics)

A

On intel it’s LGA 1151 & LGA 2066, and on AMD it’s AMA4 and TR4

77
Q

What are CPU sockets?

A

The mount where a CPU connects to the motherboard

78
Q

Facts to know..

A

CPUs are microarchitectures, many CPUs come from a single microarchitecture, and there are specific socket packages covered on the A+

79
Q

Motherboard facts..

A

make sure you have the right socket and speed CPU for your motherboard, always use thermal paste between the CPU and the fan, connect the fan to a power source

80
Q

Fans and liquid cooling facts..

A

Third party fans are more efficient than OEM fans, liquid cooling uses a pump, a radiator, and a cooling block with liquid to remove heat, liquid cooling reduces fan noise.

81
Q

When an instruction is sent to the CPU in a binary pattern, how does the CPU know what instruction the pattern means?

A

Code book

82
Q

What is the design foundation on which families of CPUs are built?

A

Microarchitecture

83
Q

How does a CPU increase the speed of the system clock?

A

Clock multipliers

84
Q

Which type of memory inside a CPU is the slowest?

A

L3

85
Q

Which is a common Intel socket?

A

1151

86
Q

When installing a CPU, protect it with what?

A

An antistatic wrist strap

87
Q

How to calculate DDR speeds?

A

The mhz is the speed of the motherboard and DDR is that the MHz times 2 and PC speed is the DDR times 8.

88
Q

Is DDR2 twice as fast as DDR?

A

Yes.

89
Q

How to calculate DDR3 speed?

A

Mhz times 4 for DDR and DDR3 is DDR times 2. PC3 is DDR3 times 8.

90
Q

With DDR4 speeds does the clock speed move to bandwidth or DDR speed?

A

Bandwidth

91
Q

What’s the DDR4 speed order?

A

Clock speed, bandwidth, DDR4 speed rating, and PC speed rating.

92
Q

How to calculate DDR2 speeds?

A

Mhz times 2 for DDR speed. DDR speed times 2 for DDR2 speed. And DDR2 times 8 for PC speed.

93
Q

RAM technology facts..

A

Different motherboards support specific RAM technology, RAM speeds are measured by using DDR or PC ratings. Multiply a DDR speed by eight to get the PC speed.

94
Q

Does double sided RAM fit into all motherboards?

A

No

95
Q

What’s a motherboard channel for?

A

An empty slot where you can put in RAM.

96
Q

What does dual-channel memory mean?

A

One must put two RAM sticks of the exact same size/speed into specific slots

97
Q

RAM capacity facts..

A

Every stick of RAM has a specific capacity, RAM comes in both single and double sided versions, motherboards offer multichannel memory, RAM should be identical in the same channel

98
Q

What is Parity or ECC RAM?

A

There the same as normal RAM but with one exception. They add an extra chip known as a parity chip. Parity 1 bad chip/ECC 2 bad chips

99
Q

What are SO-DIMMs?

A

Designed for where long sticks of ram don’t work like laptops.

100
Q

What’s a SDP chip?

A

A brain that’s built onto RAM for the system to query the RAM and ask it about speed, model #, and etc.

101
Q

RAM feature facts..

A

Parity and ECC RAM contain extra chips to check for RAM errors, ECC RAM is only for motherboards that support it, SO-DIMMS are for smaller places, Almost all RAM have an SPD chip that stores info about the RAM stick. Tools like CPU-Z read SPD info.

CompTIA A+ 1001 (2 decks)

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