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CS 11M

Total questions: 109

Worksheet time: 1hrs 2mins

Name
Class
Date
1.
Choose the best answer about character sets:
a)
All characters in character sets are stored in binary.
b)
Some characters in character sets are stored in binary.
c)
Only binary characters in character sets are stored in binary.
2.
The following is true about character sets:
a)
Each letter has a unique code
b)
Lower and upper case letters share the same codes
c)
ASCII is one of the latest character sets to be adopted
3.
The main purpose of character sets is:
a)
To allow humans to express alphanumeric characters in a binary table
b)
To run the Internet
c)
To simplify computer programming
4.
Unicode can represent:
a)
65,536 different characters
b)
255 characters
c)
127 characters
5.
ASCII uses one byte per character. Unicode uses how many bytes per character?
a)
2 bytes per character.
b)
3 bytes per character.
c)
4 bytes per character.
6.

This is the truth table for which logic gate?

a)
b)
c)
7.

In this logic circuit, if A = 0 and Q = 1, what is B?

a)

0

b)

We can't say

c)

1

8.

Which logic gate is this?

a)

AND

b)

OR

c)

NOT

9.

This is the truth table for which logic gate?

a)

AND

b)

OR

c)

NOT

10.

Which logic gate matches this truth table?

a)
b)
c)
11.

Which logic gate is this?

a)

AND

b)

OR

c)

NOT

12.

This register contains the address (location) of the instruction being executed at the current time

a)

MAR (Memory Address Register)

b)

MDR (Memory Data Register)

c)

CIR (Current Instruction Register)

d)

PC (Program Counter)

e)

ALU (Arithmetic and Logic Unit)

13.

Either stores the address from which data will be fetched from the CPU, or the address to which data will be sent and stored.

a)

MAR (Memory Address Register)

b)

MDR (Memory Data Register)

c)

CIR (Current Instruction Register)

d)

PC (Program Counter)

e)

ALU (Arithmetic and Logic Unit)

14.

Holds the instruction that is being processed (and translated) or executed

a)

MAR (Memory Address Register)

b)

MDR (Memory Data Register)

c)

CIR (Current Instruction Register)

d)

PC (Program Counter)

e)

ALU (Arithmetic and Logic Unit)

15.

Performs calculations (i.e. addition, division, multiplication, subtraction)

a)

MAR (Memory Address Register)

b)

MDR (Memory Data Register)

c)

CIR (Current Instruction Register)

d)

PC (Program Counter)

e)

ALU (Arithmetic and Logic Unit)

16.

Used to store the results of calculations while they are in progress

a)

Arithmetic and Logic Unit

b)

Program Counter

c)

Current Instruction Register

d)

Accumulator

e)

Memory Data Register

17.

Which of the following are examples of the advantages of using Embedded Systems?

a)

They make devices easier to use

b)

They speed the processes a device can perform

c)

It creates a more reliable device

d)

It enhances the usability of the device

18.
Quality of an image depends on:
a)
Resolution
b)
Metadata
c)
Screen size
d)
Computer's speed
19.
The density of pixels in an image file is known as:
a)
Resolution
b)
Dimensions.
c)
Transparency.
d)
Compression.
20.
Resolution is measured in:
a)
Pixels per mm or per inch
b)
Print size.
c)
Milimeters.
d)
Bytes.
21.
Identify a true statement:
a)
Image files can be compressed by setting pixels with similar colour to the exactly same colour.
b)
Compressing files improves their quality.
c)
Resolution doesn't affect the printed size of an image.
d)
Black and white images have colour depth of two bits.
22.
Colour depth refers to:
a)
How many bits are used in a file to store colour information in every pixel
b)
Resolution divided by the number of colours in an image.
c)
Degree of file compression applied to an image file.
d)
Repeated resampling of an image.
23.
Most graphic formats create many colours from:
a)
Red, green, blue.
b)
Red, pink, yellow.
c)
Red, white, blue.
d)
Black, white, green.
24.
The smallest unit of data stored in an image file is called:
a)
Pixels
b)
Resolution
c)
Alpha
d)
Bitmap.
25.
Additional Information about the image file is stored as
a)
Metadata
b)
Properties
c)
File summary
d)
Pixels
26.
How could you reduce the file size of an image?
a)
Reduce the numbr of colours used per pixel (colour depth)
b)
Reduce the dimensions of the image.
c)
Compress the file using a lossy compression file type.
d)
All of these
27.
Define the term "Colour Depth"
a)
The number of bits used per pixel (BPP).
b)
The number of colours used in an image.
c)
The number of pixels per inch (PPI).
d)
The total number of pixels in an image.
28.
Define the term "Resolution"
a)
The number of bits used per pixel (BPP).
b)
The number of colours used in an image.
c)
The number of pixels per inch (PPI).
d)
The total number of pixels in an image.
29.
Which of the following file types will use lossy compression to reduce the size of the image file?
a)
JPEG (JPG)
b)
BMP (Bitmap)
c)
MP3
d)
MPEG
30.

In a bitmap graphic each pixel is represented in _______

a)

Denary

b)

Binary

c)

Hexadecimal

d)

By letters

31.

Metadata is

a)

the colour of each pixel.

b)

the density of pixels in an image.

c)

the information stored in an image to help recreate the image.

d)

the number of bits used for each pixel.

32.

Image metadata holds information about the image such as

a)

name, colour, brand

b)

file format, resolution, colour depth, date

c)

brand, colour, size

d)

content, colour, name

33.

What is primary storage?

a)

The hard drive

b)

Memory

c)

Network server

d)

Cloud storage

34.

Which of these is NOT secondary storage?

a)

USB

b)

Google Drive

c)

RAM

d)

DVD

35.

Why is secondary storage needed?

a)

It is non-volatile

b)

It is volatile

c)

It is quicker

d)

It is online

36.

Which type of memory is non-volatile?

a)

ROM

b)

RAM

37.

Which type of memory will you find inside a CPU?

a)

RAM

b)

ROM

c)

Virtual

d)

Cache

38.

What type of memory will be needed if the RAM is nearly full?

a)

ROM

b)

Virtual

c)

Cache

d)

Cloud

39.

Tick ALL of the optical storage devices:

a)

CD

b)

USB

c)

Blu-ray

d)

SSD

e)

DVD-RW

40.

What is secondary storage?

a)

long term storage of files or data

b)

short term storage of files or data

c)

temporary storage of files or data

41.

Why do we need secondary storage?

a)

so we can use the computer

b)

so we can retrieve our files at a later date

42.

What are the three types of secondary storage?

a)

optical, flash, magnetic

b)

optical, magnetic, hard drive

c)

optical, magnetic, solid-state

d)

magnetic, solid-state, flash

43.

What type of storage is a USB memory stick

a)

optical

b)

magnetic

c)

solid-state

44.

What type of storage is a CDROM?

a)

optical

b)

magnetic

c)

solid-state

45.

What type of storage is a HDD?

a)

optical

b)

magnetic

c)

solid-state

46.

What type of storage is the most expensive per GB?

a)

optical

b)

magnetic

c)

solid-state

47.

What is primary storage?

a)

The hard drive

b)

Memory

c)

Network server

d)

Cloud storage

48.

What is sample resolution?

a)

The accuracy of the amplitude used to to record each measurement

b)

The accuracy of the wavelength used to record each measurement

c)

The the accuracy of the period used to record<br />each measurement

d)

The accuracy of the wave speed used to record each measurement

49.

What does lossy compression usually do (to audio recordings)?

a)

Remove unecessary sound from outside the range of human hearing.

b)

Leave out repeated data.

c)

Reduce the sample resolution

d)

Reduce the sample rate

50.

What is sample rate?

a)

The number of samples recorded per second

b)

The number of bits used to record each sample

c)

How much data is processed for each sample

d)

How many waves appear

51.

One of the determiners of sound quality is _______, or how many bits are used to encode each sample.

a)

sample height

b)

sample rate

c)

bit depth

d)

frame rate

52.

Another setting that affects sound recording quality is the _________, or how many individual samples are taken each second

a)

sample height

b)

sampling rate

c)

bit depth

d)

frame rate

53.

With both audio and video files, higher quality results in ________ file sizes.

a)

smaller

b)

larger

c)

digital

d)

analog

54.

Which of the following are examples of System Software?

a)

Microsoft Office

b)

Unix

c)

Safari

d)

MacOS

e)

Windows

55.

What isn't an example of Utility Software

a)

Firewall

b)

Drivers

c)

Auto Updates

d)

Defragmentation

56.

What happens during Defragmentation?

a)

Information is rearranged on a USB

b)

To make the retrieval of data quicker

c)

Information is rearranged on a Hard Drive

d)

To make the retrieval of data slower

57.

What is Encryption software used to do?

a)

Permanently change data

b)

Revert data to something it wasn't before

c)

Change data so it is unreadable by an interceptor

d)

Change data so it is readable by an interceptor

58.
_____________is a type of system software allows that allow a user to perform  maintenance-type tasks
a)
Operating system
b)
System Software
c)
Application software
d)
Utility program
59.

What does a Firewall do?

a)

Creates a wall around the computer

b)

Blocks everything entering the computer/network

c)

Creates a barrier to outside software threats

d)

Blocks potentially harmful sources to the network/computer

60.

What is the purpose of an Incremental Backup?

a)

Changes the files of everyone on the system

b)

Allows a user to see what is going on in the computer

c)

Backs up only the files that have been changed by users

d)

Backs up all the files that by all users

61.

What are the benefits of an Incremental Backup?

a)

It is quicker than a full back up

b)

It will incur less traffic on the system

c)

It will copy all the files in one go for every user

d)

It is slower than full backups

62.

What is an advantage of a Full Backup?

a)

It is expensive

b)

The access to the back up is quick

c)

The access to the back up is slow

d)

The entire process is very quick

63.

"Making a duplicate of all the users work" is a description of what?

a)

Defragmentation

b)

Drivers

c)

Task Manager

d)

Backup

64.

A computer needs both hardware and software to work

a)

true

b)

false

65.

What manages the hardware and runs the software?

a)

Computer Systems

b)

Dedicated Systems

c)

Embedding Systems

d)

Operating Systems

66.

What does GUI stand for?

a)

Genuine Umpire Impressions

b)

Graphical User Interface

c)

Graphic Up Industry

67.

How can the OS help manage security of the system?

a)

The OS can hire backup

b)

User accounts may be password protected

c)

Files can self destruct after a set time

68.

How does the OS handle file management?

a)

Deals with movement, editing and deletion of data

b)

Colour codes data

c)

Translates data into binary

69.

What can an operating system do?

a)

Allow the hardware and software to communicate?

b)

Make a computer run faster

c)

Make tea

d)

carry out hospital operations

70.

Application software is...

a)

help the user run specific tasks like word processors, web browser, email, clients, games, etc

b)

run tasks like the operating systems, utilities, etc

c)

help the user run things down

d)

run tasks like the doing my homework, revision, etc

71.
What is processor speed measured in?
a)
Kilometers per hour Km/h
b)
Bits per second BPS
c)
Gigahertz GHz
d)
Megabits Mb
72.

What is a network

a)

A stand alone computer

b)

Two or more interconnected computers

c)

A computer without a server

73.

WAN stands for?

a)

Wide Area Network

b)

Wide Angled Network

c)

Wiped Area Network

74.

Which one is a BUS topology

a)
b)
c)
75.

A BUS topology is (Which one is correct)?

a)

Easy to set up

b)

Expensive to set up

c)

Hard to set up

76.

Which one is a RING topology

a)
b)
c)
77.

The data in the ring topology.....(Which one is correct)

a)

Uses a switch

b)

Travels in one direction using a control signal called a 'token'

c)

Uses a terminator

78.

Which one is a STAR topology

a)
b)
c)
79.
What type of network topology shown in the picture?
a)
Bus topology
b)
Ring topology
c)
Star topology
d)
Tree topology
80.

what type of network topology is this

a)

Bus

b)

Ring

c)

Star

81.

Bus Topology Advantages "Choose 2"

a)

Use less cable than other topologies

b)

Data packets travel at great speed

c)

Inexpensive to install

d)

One cable failure does not bring down the entire network

82.

In fiber optics, the signal is _______ waves.

a)

light

b)

radio

c)

infrared

d)

very low frequency

83.

Radio waves, micro- waves and infrared waves are types of

a)

wireless transmission

b)

guided transmission

c)

both a and b

d)

None

84.

__________ refers to the network command for how to format the conversation between two devices.

a)

Addressing

b)

Protocol

c)

Media

d)

Domain

85.

The OSI and TCP/IP models structure the __________ used for signaling and the separation of function in a network.

a)

addressing

b)

media

c)

domain

d)

protocol

86.

__________ architecture uses a limited set of internet holding servers known as the “root” domain servers, which now house “.com”, “.org”, “.gov”, and so on.

a)

Hosting

b)

IPv6 address

c)

Domain name service

d)

MAC address

87.

An example of social engineering.

a)

Viruses

b)

Trojan Horses

c)

Telephone IVR phising

d)

Worms

88.

A network policy

a)

Acceptable use policy

b)

Data theft

c)

Virus

d)

Phishing

89.

Software that performs a ‘barrier’ between a potential attacker and the computer system.

a)

Antivirus

b)

Firewall

c)

Windows update

d)

Disk defragmenter

90.

These define access permissions for a user

a)

Group permissions

b)

User Access levels

c)

User Maintenance

d)

Group and user settings

91.

What is encryption?

a)

Where only the sender and recipient can read the message.

b)

A method of bypassing viruses

c)

A form of anti-virus

d)

Where data is translated into code so that only authorised users, or users with the key can decrypt it.

92.

What must a user need to decrypt a file?

a)

Coin

b)

Key

c)

Token

d)

Graph

93.

Trojan Horses

a)

Does not need to attach to a program

b)

Can only occur when a computer is not connected to a network

c)

A type of social engineering

d)

Designed to access a computer by misleading users of its’ intent by prompting to download a program

94.

Worms

a)

Do not need to attach to a program

b)

Need to attach to a program

c)

A type of social engineering

d)

Designed to access a computer by misleading users of its’ intent by prompting to download a program

95.

How do hackers use viruses?

a)

To make a computer unusable

b)

To get someone’s personal information

c)

To find out card details

d)

All of the above

96.

Data travels across networks in

a)

Nibbles

b)

Parts

c)

Bytes

d)

Packets

97.

Uses a number of computers over a network of infected machines which send req uests to a website which would bring it offline

a)

SQL

b)

DoS

c)

WLAN

d)

USB

98.
What is another name given to 'proprietary software'?
a)
Open source software
b)
Bespoke software
c)
Tailor Made software
d)
Closed source software
99.

What is meant by 'proprietary' software?

a)

Software owned by an organisation, you may need to buy a license for.

b)

software distributed with its source code, making it available for use, modification, and distribution with its original rights

100.

What is meant by 'open source' software?

a)

Software owned by an organisation, you may need to buy a license for

b)

Software distributed with its source code, making it available for use, modification, and distribution with its original rights

101.
Which of the following is not 'open source' software?
a)
Linux
b)
Ubuntu
c)
Open Office
d)
Windows 10
102.

Which of the following is a disadvantage of 'proprietary' software?

a)

You can edit the source code to customise it

b)

It may have bugs, since updates are not readily available

c)

Less likely to have 'bugs' as updates are regular to fix them

d)

May have features within the software you don't need, source code can't be changed.

103.

Which of the following is a disadvantage of 'open source' software?

a)

You can edit the source code to customise it

b)

It may have bugs, since updates are not readily available to fix issues.

c)

Less likely to have 'bugs' as updates are regular to fix them

d)

May have features within the software you don't need, source code can't be changed.

104.

Which of the following is an advantage of 'proprietary' software?

a)

You can edit the source code to customise it

b)

It may have bugs, since updates are not readily available to fix issues.

c)

Less likely to have 'bugs' as updates are regular to fix them

d)

May have features within the software you don't need, source code can't be changed.

105.

Which of the following is a disadvantage of 'proprietary' software?

a)

You can edit the source code to customise it

b)

It may have bugs, since updates are not readily available to fix issues.

c)

Less likely to have 'bugs' as updates are regular to fix them

d)

May have features within the software you don't need, source code can't be changed.

106.
A bank thinks of getting a database package. They have particular needs, such as having their logo on every screen and timing employees performing tasks. The best software in this case would be:
a)
bespoke
b)
off the shelf
c)
open source
107.
Microsoft Office and similar software is an example of:
a)
off the shelf
b)
bespoke
c)
open source
108.
Microsoft Office and similar software is an example of:
a)
off the shelf
b)
bespoke
c)
open source
109.
Certain computing projects in education and science are free and maintained by a diverse community of people. Their software is usually distributed as:
a)
open source
b)
charity
c)
off the shelf

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