Brainscape's Knowledge GenomeTM

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


See full index

Google IT Support > Module 1 > Flashcards

Module 1 Flashcards

1
Q

What cards had holes in them that were historically used to store data?

A

Punch Cards

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

Cyptography

A

The art of writing and solving codes

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

A(n) ____ is a series of steps that solve specific problems.

A

algorithm

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

What are the three main desktop operating systems used today? Check all that apply.

A

Windows

MacOS

Linux

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

Binary System

A

The communication that a computer uses also known as a bas-2 numeral system

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

What does the following binary code translate to? Use the following
ASCII “character to binary” chart
to help you find an answer.

01101000 01100101 01101100 01101100 01101111

A

hello

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

ASCII

A

Represents the English alphabet, digits, and punctuation marks

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

The first character in the ASCII to binary table – a lowercase a– maps to?

A

01100001

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

RGB

A

Primary color(red,green,blue)

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

In punch card systems, a hole represents the number ____.

A

1

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

Logic Gates

A

Electrical components that perform binary calculations by determining electrical outputs based on one or more inputs.
Represent “on” (1) or “off” (0) binary states.

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

Explain what happens when an off and on goes through a not gate?

A

Input of on outputs and off and input of off outputs an on

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

What happens in an AND gate?

A

if any of the combinations has an off it outputs off.

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

What happens in an XOR gate?

A

if any of the combinations has an on it outputs on.

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

What happens in an XOR gate?

A

If both inputs are the same it outputs off. If it’s different it outputs on.

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

What happens in a NAND gate?

A

If both inputs are different we get an on. If both it’s OFF we get an on and if it’s both on we get an off.

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

What happens in a XNOR gate?

A

If both inputs are the same we get an ON. If both are different we get an off.

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

How much does a bit represent?

A

Depending on what part it is just double it.

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

How many possible values can we have with the 8 bits in a byte?

A

256

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

What is the highest decimal value a byte can represent?

A

255

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

Question 3
Why did UTF-8 replace the ASCII character-encoding standard?

A

UTF-8 can store a character in more than one byte.

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

Question 4
What is 10101010 in decimal format? Please use this Binary Table to find the answer.

A

170

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

Question 5
What is 45 in binary form? Please use this Binary Table to find the answer.

A

00101101

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

Hardware Layer

A

Made up of the physical components of a computer

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

Operating System

A

Allows hardware to communicate with the system

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

User

A

Interacts with the computer

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

Number 1 Advice To Get Into IT

A

Make sure you have strong fundamentals

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

What does the hardware layer in computer architecture include?

A

The physical components of a computer

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

What is the purpose of the software layer in computer architecture?

A

It allows hardware to communicate with the system.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What are the four main layers of computer architecture?

A

Hardware, Operating System, Software, User

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What’s a critical aspect of working as an IT support professional?

A

The human element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Abstraction

A

To take a relatively complex system and simplify it for our use

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

ASCII

A

The oldest character encoding standard used is ASCII. It represents the English alphabet, digits, and punctuation marks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Binary system

A

The communication that a computer uses is referred to as binary system, also known as base-2 numeral system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Byte

A

A group of 8 bits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Character encoding

A

Is used to assign our binary values to characters so that we as humans can read them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Computer

A

A device that stores and processes data by performing calculations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Decimal form- base 10 system

A

In the decimal system, there are 10 possible numbers you can use ranging from zero to nine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Digital divide

A

The growing skills gap between people with and without digital literacy skills

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Linux OS

A

Linux is one of the largest open source operating systems used heavily in business infrastructure and in the consumer space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Logic gates

A

Allow transistors to do more complex tasks, like decide where to send electrical signals depending on logical conditions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

PDA (Personal Digital Assistant)

A

Allows computing to go mobile

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Open source

A

This means the developers will let other developers share, modify, and distribute their software for free

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Punch cards

A

A sequence of cards with holes in them to automatically perform calculations instead of manually entering them by hand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

RGB model

A

RGB or red, green, and blue model is the basic model of representing colors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

UTF-8

A

The most prevalent encoding standard used today

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Which of these devices can be used to control electricity voltages in computers? Select all that apply.

A

Transistors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Which of the following is the current method used to communicate in binary?

A

Electrical signals that flow through transistors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

What do we mean when we say “under the hood.”

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

What distinguishes computers from calculators?

A

Algorithms can be programmed into computers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

What advancement made learning programming languages accessible to nearly anyone?

A

Compilers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

Fill in the blank: One byte can store ___ possible characters.

A

256

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

Ports

A

Connection Points that we can connect devices to that extend the functionality of our computer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

CPU(Central Processing Unit)

A

The brain of our computer, it does all the calculations and data processing

53
Q

RAM(Random Access Memory)

A

Our computer’s short-term memory

54
Q

Hard drive

A

Holds all of our data, which includes all of our music, pictures, applications.

55
Q

Motherboard

A

The body or circulatory system of the computer that connects all the pieces together.

56
Q

Programs

A

Instructions that tell the computer what to do

57
Q

Clock speed

A

The maximum number of clock cycles that it can handle in a certain time period

58
Q

What is cache in computing?

A

Cache refers to a small amount of recently used data stored in hardware or software to speed up data access.

59
Q

What is CPU cache?

A

CPU cache is a type of cache stored inside each CPU core, used to quickly access data.

60
Q

What is the role of L3 cache in a CPU?

A

L3 cache is the largest and slowest, often shared by all CPU cores, and is the first to store data after it is transferred from RAM.

60
Q

What are the three levels of CPU cache?

A

Level 1 (L1) cache, Level 2 (L2) cache, and Level 3 (L3) cache.

61
Q

What is the role of L2 cache in a CPU?

A

L2 cache holds less data than L3 but has faster access speeds and stores a copy of the most recently accessed data not currently in use.

62
Q

What is the role of L1 cache in a CPU?

A

L1 cache is the fastest and smallest, holding the data currently in use by the CPU, and is unique to each CPU core.

63
Q

What is overclocking a CPU?

A

Overclocking a CPU involves setting it to run at a higher clock frequency than the manufacturer’s original specifications for improved performance.

64
Q

What are the three variables involved in overclocking a CPU?

A

Base CPU clock frequency, core frequency (calculated by multiplying the base frequency by CPU core multipliers), and core voltage.

65
Q

What are the risks of overclocking a CPU?

A

Overclocking can overheat and damage the CPU and surrounding hardware, shorten the computer’s lifespan, and void the warranty.

66
Q

What should you check before attempting to overclock a CPU?

A

Ensure the CPU and motherboard support overclocking by checking the manufacturer’s documentation.

67
Q

Why is cleaning the inside of the computer important before overclocking?

A

Dust build-up around the CPU, fans, and vents can hinder cooling and increase the risk of overheating.

68
Q
A
69
Q

What is crucial to install before overclocking a CPU?

A

An appropriate CPU cooler, such as an advanced liquid cooling system, is critical to prevent overheating.

70
Q

What steps should be followed when overclocking a CPU?

A

Use manufacturer’s instructions, increase core multipliers gradually, test for stability, and adjust voltage as needed.

71
Q

What should you do if the computer becomes unstable during overclocking?

A

Roll back to the last stable frequency or increase voltage incrementally until stability is achieved.

72
Q

Programs are copied into the __ for the CPU to read.

A

RAM

73
Q

Which component holds everything in place and is sometimes referred to as the foundation of a computer?

A

Motherboard

74
Q

Which component functions as the computer’s short-term memory?

A

RAM

75
Q

Which computer component finds the data requested by the CPU so the data can be sent from the RAM to the CPU?

A

MCC

76
Q

LGA Socket

A

An LGA socket has pins coming out of the motherboard

77
Q

PGA Socket

A

A PGS Socket has pins coming out of the processor itself

78
Q

DRAM meaning

A

Dynamic Random Access Memmory

79
Q

DIMM

A

Dual Inline Memory Module

80
Q

DDR meaning

A

Double data rate

81
Q

Northbridge

A

Interconnects RAM and video cards

82
Q

Soutbridge

A

Maintains input/output (IO) controllers

83
Q

Peripherals

A

External devices we connect to our computer, like a mouse, keyboard, and monitor

84
Q

Expansion Slots

A

Give us the ability to increase the functionality of our computer

85
Q

SATA - (Serial ATA)

A

Interface which uses one cable for data transfers

85
Q

Hot swappable

A

You don’t have to turn off your machine to plus in a SATA drive

86
Q

Form Factor

A

Determines the amount we can put in and the amount of space we’ll have

87
Q

What is a bit in data storage?

A

A bit is a binary digit that stores an electric signal as 1 or 0, which are the two possible values in the binary number system (base-2) used by computers.

88
Q

What is a byte?

A

A byte is a group of 8 bits that typically represents a symbol or a basic computer instruction.

89
Q

What are the decimal units for data storage?

A

Kilobyte (KB), Megabyte (MB), Gigabyte (GB), Terabyte (TB), Petabyte (PB), Exabyte (EB), Zettabyte (ZB), Yottabyte (YB).

90
Q

What is the origin of the term “Kilobyte”?

A

Derived from “kilo,” a French word meaning “thousand.” 1 KB = 1,000 bytes.

91
Q

Derived from “kilo,” a French word meaning “thousand.” 1 KB = 1,000 bytes.

A

Kibibyte (KiB), Mebibyte (MiB), Gibibyte (GiB), Tebibyte (TiB), Pebibyte (PiB), Exbibyte (EiB), Zebibyte (ZiB), Yobibyte (YiB).

92
Q

Why is binary nomenclature more accurate?

A

It reflects the true binary nature of computer data storage, unlike the decimal system, which is a base-10 approximation.

93
Q

What is the storage capacity of 1 Kilobyte (KB) in decimal and binary?

A

Decimal: 1 KB = 1,000 bytes; Binary: 1 KiB = 1,024 bytes.

94
Q

What can 1 Megabyte (MB) hold?

A

Approximately 1 minute of music in a lossless .mp3 format or a short novel.

95
Q

What is the storage capacity of 1 Gigabyte (GB) in decimal and binary?

A

Decimal: 1 GB = 1,000,000,000 bytes; Binary: 1 GiB = 1,073,741,824 bytes.

96
Q

What can 1 Terabyte (TB) hold?

A

About 200,000 songs in .mp3 format or 300 hours of video.

97
Q

What is the storage capacity of 1 Petabyte (PB) in decimal and binary?

A

Decimal: 1 PB = 1,000,000,000,000,000 bytes; Binary: 1 PiB = 1,125,899,906,842,624 bytes.

98
Q

What can 1 Exabyte (EB) hold?

A

Approximately 11 million movies in 4k video resolution or 3,000 copies of the entire U.S. Library of Congress.

99
Q

What is the storage capacity of 1 Zettabyte (ZB) in decimal and binary?

A

Decimal: 1 ZB = 1,000,000,000,000,000,000,000 bytes; Binary: 1 ZiB = 1,180,591,620,717,411,303,424 bytes.

100
Q

What can 1 Yottabyte (YB) hold?

A

In 2011, a cloud storage company estimated that 1 YB could hold the data of 1 million data centers.

101
Q

Wattage

A

The amount of volts and amps that a device needs

102
Q

System on a Chip(Soc)

A

Packs the CPU, Ram, and sometimes even the storage onto a single chip

103
Q

BYOD

A

Bring your own device

104
Q

Charge Cycle

A

One full charge and discharge of a battery

105
Q

What are USB connectors used for?

A

USB connectors transfer data and power to devices connected to a computer.

106
Q

What are the three generations of USB Type A connectors, and how do they differ?

A

USB 2.0: Black port, 480 Mbps transfer speed.
USB 3.0: Blue port, 5 Gbps transfer speed.
USB 3.1: Teal port, 10 Gbps transfer speed.
USB ports are backwards compatible.

107
Q

What is Micro USB used for?

A

Micro USB is a small USB port found on many non-Apple cellphones, tablets, and other portable devices.

108
Q

Describe USB-C and its advantages.

A

USB-C is a reversible connector that carries more power and transfers data at 20 Gbps. It is the newest USB standard, replacing older USB connectors.

108
Q

What is the Lightning Port and which devices use it?

A

The Lightning Port is an exclusive connector for Apple devices, used for charging and connecting to computers, external monitors, cameras, and other peripherals.

109
Q

What are RJ-11 connectors used for?

A

RJ-11 connectors are used for Plain Old Telephone Service (POTS) cables, which transmit voice through twisted copper pair wires.

109
Q

What is an RJ-45 connector used for?

A

RJ-45 connectors are used with ethernet cables to connect a computer to network elements for high-speed internet.

109
Q

What type of connector is used with cable modems for Cable Internet?

A

An F type connector is commonly used with cable modems for Cable Internet.

110
Q

What are fiber-optic cables and their purpose?

A

Fiber-optic cables contain glass fibers that send data long-distance and are used for high-bandwidth communication, like high-speed internet.

111
Q

What are DB89 connectors used for?

A

DB89 connectors are used for older peripherals like keyboards, mice, and joysticks.

112
Q

What is a Molex connector used for?

A

Molex connectors provide power to internal drives or devices, such as hard drives, disc drives, and video cards.

113
Q

What is a punch down block?

A

A punch down block is a terminal strip used to connect telephone or data lines, often used in telephone systems or Local Area Networks (LAN).

114
Q

What are the key takeaways about connectors for IT professionals?

A

USB connectors are the most common and transfer data and power to devices.
Communication connectors like RJ-45 and fiber optic cables connect devices to the internet.
IT professionals may encounter legacy devices using older connectors like DB89 and Molex.
Punch down blocks are used to connect telephone or data lines.

115
Q

What will happen if you plug in a 220v device into a 120v outlet?

A

The device will charge at a slower rate and could cause deterioration over time.

115
Q

What are two common types of CPU sockets?

A

LGA and PGA

116
Q

Question 3
What is the most common form factor for motherboards?

A

ATX

117
Q

Which characteristics differentiate a Solid State Drive (SSD) from a Hard Disk Drive (HDD)? Select all that apply.

A

Greater durability

Non-moving parts

118
Q

BIOS

A

Basic Input Output Service. Software that helps initialize the hardware and gets our operating system up and running

119
Q

UEFI

A

Unified extensible firmware interface. Performs the same function of starting your computer as the traditional BIOS, but it’s more modern and has better compatibility and support for newer hardware

120
Q

Disk Image

A

Copy of an operating system

121
Q

Reimaging

A

Wiping and reinstalling an operating system

122
Q

True or false: Before you work on the physical components of your machine, you should ground yourself to prevent electrostatic discharge.

A

True

123
Q

Molex

A

A molex is a component connector

124
Q

Factory Reset

A

Removes all data, apps, and customizations from the device

125
Q

What function does the BIOS perform?

A

Initializes hardware and loads up drivers

126
Q

What function does the POST perform in a computer?

A

Figures out what hardware is on the computer and makes sure it is running properly

127
Q

What function does a driver perform on the computer?

A

Teaches the CPU how to run an external device

127
Q

Where are the BIOS settings stored?

A

CMOS

Google IT Support (1 decks)

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