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Year 9 EOT1 Nov 2022

Total questions: 100

Worksheet time: 56mins

Name
Class
Date
1.

What is the term for a message that has been encoded using a cipher? (a)  

Choose from the below words
Encryption
Decryption
Key
I don't know
2.

The Caesar Cipher is known as what type of cipher?

a)

Substitution

b)

Shift

c)

I don't know

3.

Who made the caesar cipher?

a)

Flarmaan FLexer

b)

Julius Caesar

c)

Bob Marley

d)

Cnad

4.

What type of Encryption is this?

a)

Caeserpen

b)

Crosspen

c)

Pigpen

d)

Dogpen

5.
Bubble sort takes the first two values of a list, and swaps them if wrong?
a)
True
b)
False
6.
Which type of sort algorithm is this?
a)
Bubble
b)
Merge
c)
Insertion
7.
Which of these is a type of searching algorithm?
a)
Linear search
b)
Word search
c)
Search engine
8.

Select the best description to explain what a binary search algorithm is.

a)

Put the elements in order, check each item in turn.

b)

Put the elements in order, compare with the middle value, split the list in order and repeat.

c)

Elements do not need to be in order, check each item in turn.

d)

Elements do not need to be in order, compare to the middle value, split the list in order and repeat

9.
A linear search is to be performed on the list:
12   6   8  1  3
How many comparisons would it take to find number 1?
a)
1
b)
2
c)
3
d)
4
10.
What is abstraction?
a)
The process of filtering out unnecessary detail.
b)
The process of filtering out irrelevant characteristics
c)
The process of filtering out irrelevant characteristics and unnecessary detail.
11.

Define the term computational thinking

a)

Using a computer

b)

Developing an algorithm to solve a problem

c)

Making a computer use artificial intelligence

d)

Solving a problem using a computer

12.

What is a type of diagram that shows the sequence of steps in an algorithm?

a)

flow chart

b)

pie chart

c)

bar graph

d)

line graph

13.

In a flowchart an input or output instruction is represented by:

a)

A rectangle

b)

A rhombus

c)

A parallelogram

d)

A circle

14.

In a flowchart a calculation (process) is represented by:

a)

A rectangle

b)

A rhombus

c)

A parallelogram

d)

A circle

15.

An Algorithm asks the user to enter their scores for 5 different tests.

This is an example of which of the algorithm constructs?

a)

Decision (Selection)

b)

Loop (Iteration)

c)

Order (Sequence)

d)

All of the above

16.

What is a "Variable" ?

a)

A value that can be changed and manipulated as an algorithm is running

b)

A value that cannot be changed and manipulated as an algorithm is running

17.

What type of operators are AND OR NOT

a)

Arithmetic

b)

Relational

c)

Booleon

18.

When expressing an algorithm in pseudocode, which parts should be capitalised?

a)

Keywords

b)

All of it

c)

Output

d)

Input

19.

The THREE control structures used to create an algorithm are...

a)

Sequence

b)

Selection

c)

Iteration

d)

Variables

20.

What is the output?

a)

True

b)

False

21.

For OR, when is it FALSE?

a)

false AND false

b)

true AND false

c)

false AND true

d)

true AND true

22.

What type of logic gate is this table showing?

a)

AND

b)

OR

c)

NOT

23.

What will the circuit's output be?

a)

1

b)

0

24.

Which logic gate is this?

a)

AND

b)

OR

c)

NOT

25.

What will this gate's output be?

a)

0

b)

1

26.

What will this gate's output be?

a)

0

b)

1

27.

What are the first 6 powers in binary?

a)

0, 2, 4, 8, 12, 32

b)

1, 2, 4, 8, 16, 31

c)

1, 2, 6, 8, 16, 32

d)

1, 2, 4, 8, 16, 32

28.

What is 23 in binary

a)

10101

b)

10110

c)

10111

d)

11000

29.

What is 111111 in denary?

a)

60

b)

61

c)

62

d)

63

30.

The decimal system is also known as ___

a)

base-two notation

b)

base-ten notation

c)

base-sixteen notation

d)

ASCII

31.
What is the answer to 1010 + 0101?
a)
1011
b)
1001
c)
1111
d)
0111
32.

Which of the following is NOT a category of Hardware?

a)

Input Devices

b)

Software

c)

Central Processing Unit

d)

Storage Devices

33.

What topology is this?

a)

Star

b)

Mesh

c)

Bus

d)

Ring

34.

When drawing a dog, which of the following characteristics is non-essential?

a)

Dogs have 4 paws

b)

Dogs have fur

c)

Dogs have brown fur

35.

The physical component of a computer system is called?

a)

Software

b)

Hardware

c)

Data

d)

Computer

36.

What is the normal range of a wireless network?

a)

100m

b)

10m

c)

20m

d)

1000m

37.

Which of the following are examples of Input Deices?

a)

Barcode Scanner

b)

Monitor

c)

Joystick

d)

Speaker

e)

Microphone

38.

The CPU is known as the _____________________ of the computer.

a)

Heart

b)

Processor

c)

Brain

d)

All of the Above

39.

Lossy or lossless? This type of compression does not get rid of any data

a)

Lossy

b)

Lossless

c)

Both

40.
What is compression?
a)
To convert one file to another
b)
To reduce the size of data to save space
c)
To minimize the time taken for a file to be downloaded
d)
To compress something by pressing it very hard
41.

Define what is meant by an algorithm

a)

Looking for similarities

b)

Breaking a problem into smaller sub problems

c)

Step by step instructions to solve a problem

d)

Using a computer to solve problems

42.
What does the following flowchart symbol represent?
a)
A process
b)
Input / Output
c)
Start / End
d)
A sub-process
43.

What is the smallest representable part of an image?

a)

Pixel

b)

Bit depth

c)

Sample

d)

Resolution

44.

How is the resolution of an image calculated?

a)

Width in pixels * height in pixels

b)

Colour depth * number of pixels

c)

Number of pixels squared

d)

Sample rate * sample resolution * length in seconds

45.

Sound outside of computers is...

a)

Analogue

b)

Digital

46.

Which file type is used for Sound

a)

.MP3

b)

.PNG

c)

.PSD

d)

.DOCX

47.

How many colours can a bitmap using 2-bit colour depth contain?

a)

2

b)

4

c)

8

d)

16

48.

What are bitmaps made up of?

a)

Pixels

b)

Bit depth

c)

Samples

d)

Resolution

49.
The system clock keeps everything synchronised inside the computer
a)
true
b)
FALSE
50.

A CPU clocked at 2Ghz would...

a)

Process 2 million instruction per second

b)

Process 2 billion instructions per second

c)

Process 2 thousand instructions per second

d)

Process 2 hundred instructions per second

51.

Programs that look useful, but cause damage to your computer

a)

Phishing

b)

Spyware

c)

Worms

d)

Trojans

52.

A network has to consist of at least 4 or more devices

a)

True

b)

False

53.

What does LAN stand for?

(a)  

54.

What does WAN stand for?

a)

Whole Area Network

b)

Wide Area Network

c)

World Area Network

d)

Wides Area Network

55.

What is a Wide Area Network?

a)

all computers throughout an area, country or continent

b)

a group of computers and devices connected over a large area like towns, cities and countries

c)

a group of computers and devices connected in a small area like a room or building

d)

any computers programmed to use different language

56.

NIC stands for........

a)

Network Interface Card

b)

Network Internet Card

c)

Notional Interconnected Card

d)

Network Internet Connection

57.

What type of signal is used by Fiber optic cable?

a)

Electrical

b)

Light

c)

Radio Wave

58.

What type of signal is used by Ethernet cable (Twisted-pair) ?

a)

Electrical

b)

Light

c)

Radio wave

59.

What are the next two numbers in this pattern? 12, 17, 22, 27, ___, ___

a)

30, 37

b)

32, 37

c)

32, 35

d)

30, 33

60.

What do we mean by COMPUTATIONAL THINKING?

a)

Understanding a complex problem and developing possible solutions.

b)

Breaking a task into smaller tasks.

c)

Selecting a computer to use.

d)

Focusing on what is important, ignoring what is unnecessary.

61.

Which one of the following is NOT utility software?

a)

Zip extractor

b)

Windows OS

c)

PDF Reader

d)

Flash Player

62.

Waht are the normal operating frequencies of your WiFi?

a)

2.4 MHz and 7 GHz

b)

2.4 GHz and 5 GHz

c)

1.4 MHz and 3 MHz

d)

2.0 GHz and 8 GHz

63.

What is scalability in computing terms?

a)

A measure of how far your Firewall extends around your network

b)

A measure of how many RAM modules you can fit on your motherboard

c)

the measure of a system's ability to increase or decrease in performance and cost

d)

the measure of a systems ability to detect and remove malware

64.

What base system is hexadecimal?

a)

16

b)

2

c)

10

d)

8

65.
Denary is numbers humans use in every day life
a)
True 
b)
False
66.
Binary uses 1’s & 0’s to represent data
a)
True
b)
False
67.
Convert 128 to binary
a)
10000000
b)
01111110
c)
10000001
d)
11001100
68.

Which of these are the correct place values for binary?

a)

128,64,32,16,8,4,2,1

b)

128, 68,34,12,6,4,2,1

c)

1,0

d)

0,1

69.
Computers can only understand 0s and 1s.
a)
True
b)
False
70.

What is a web browser?

a)

Something a spider uses to catch their prey.

b)

The hardware that lets you search.

c)

The app or software you use to access web pages.

d)

Only found on computers.

71.

What is the Uniform Resource Locator (url)?

a)

A website address.

b)

How you print.

c)

A program for the computer.

d)

Only on chromebooks.

72.

What is HyperText Markup Language (HTML)?

a)

A language used to print information.

b)

A language only hackers use to take over desktop computers and chromebooks only.

c)

A language used to tell a web browser how to make a page look.

d)

The language used to communicate between web browsers and computers.

73.

The _______ is a network of networks that links billions of devices around the globe.

a)

WIFI

b)

IP Address

c)

DNS

d)

Internet

74.

A devices unique address is called it's....

a)

DNS

b)

Domain Name

c)

IP Address

d)

ISP

75.

Select all the INPUT devices...

a)

Mouse

b)

Microphone

c)

Printer

d)

Monitor

e)

Keyboard

76.

Select all the OUTPUT devices...

a)

Mouse

b)

Microphone

c)

Printer

d)

Monitor

e)

Speakers

77.

Hardware is...

a)

any part of the computer you can physically touch

b)

Any part of the computer you cannot touch

78.

The computer's short term memory is...

a)

RAM

b)

Hard Disk

79.

The part known as the 'brains' of the computer is the...

a)

Hard Disk

b)

Motherboard

c)

CPU

d)

Hard Disk

80.

Which is not a type of software?

a)

Operating System

b)

Utility Software

c)

Administration Software

d)

Application Software

81.

Software that is designed for end users (us!). This software allows us to get things done on a computer, this includes applications like: Microsoft PowerPoint, Google Chrome and Minecraft.

a)

Operating System

b)

Utility Software

c)

Application Software

82.

Which statement best describes the Hard Disk?

a)

The short term memory for the computer. It holds all of your apps while you are using them

b)

The Brains of the computer. It processes all of the instructions and data.

c)

The long term memory for the computer. It stores all of your files, apps and data, even when the computer is off.

d)

The part of the computer that everything else plugs into. Allows the components to communicate with each other.

83.

What is the name of the character set currently used by computers?

a)

ASCII

b)

Unicode

84.

What is the smallest part of an image called?

a)

Colour

b)

Dot

c)

Pixel

d)

Block

85.

Which of these packages is a "spreadsheet"?

a)

Word

b)

Excel

c)

Powerpoint

d)

Access

86.

Should you meet somebody you have met on-line without telling your parents?

a)

Yes

b)

No

c)

It depends how long you have been talking

87.

What is a “computer virus”?

a)

Software that can damage your files or computer

b)

When your laptop gets spots

c)

A video which is very popular on YouTube

88.

What shape will this program draw?

a)

Circle

b)

Triangle

c)

Square

d)

Hexagon

89.

A list of steps to complete a task

a)

Algorithm

b)

Program

c)

CPU

d)

Hardware

90.
What is a primary key?
a)
A row in a database
b)
A column in a database
c)
A raw figure
d)
A unique field
91.
What is a field?
a)
A row in a database
b)
A column in a database
c)
A raw figure
d)
A unique field
92.
What is a record?
a)
A row in a database
b)
A column in a database
c)
A raw figure
d)
A unique field
93.
Which type of lists or data sets are linear searching algorithms used for?
a)
Unsorted lists or data sets
b)
Sorted lists or data sets
94.
A linear search is to be performed on the list:
12   6   8  1  3
How many comparisons would it take to find number 1?
a)
1
b)
2
c)
3
d)
4
95.
Describe an advantage of a linear search algorithm
a)
Data does not need to be in order.
b)
Performs well over large ordered lists.
c)
Can only work on an ordered list.  If unordered must use a linear search.
d)
Slow with large data sets.
96.

What programming concept is shown in this image?

a)

SEQUENCING

b)

SELECTION

c)

ITERATION

97.
Which is not a wired method of connecting to the internet?
a)
Dial-up
b)
ADSL
c)
Cable
d)
HTTPS
98.

Other variables that store a whole number are...

a)

variable

b)

integer

c)

string

99.

The internet is not...

a)

a network of networks

b)

the biggest Wide Area Network in the world

c)

short for interconnected network

d)

a web browser

100.

Which of the following is not an example of wireless network connection?

a)

Wi-Fi

b)

Bluetooth

c)

Cellular

d)

Optical fiber

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