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CS EOY Revision

Total questions: 96

Worksheet time: 47mins

Name
Class
Date
1.
What is a LAN?
a)
Local Area Network
b)
Local Access Network
c)
Localized Area Network
2.
What is a WAN ?
a)
Wide Area Network
b)
Wide Access Network
c)
Wider Allowance Networking
3.
What is a characteristic of a LAN?
a)
Small geographical location such as a school or small office.
b)
Really cheap to set up.
c)
Uses less cables than a star.
4.
"To share hardware, software and data" is the answer to the question ...
a)
Why do we network computers and other devices?
b)
Why do we use wi-fi all the time?
c)
Why is a network complicated?
5.

Which of these statements is TRUE about a LAN?

a)

A LAN connects computers in a small area such as an office or a small site

b)

A modem is needed to connect a computer to a LAN

c)

A LAN consists of only one computer

d)

A LAN can connect geographically distant sites together

6.

What is an advantage of a LAN?

a)

You can share peripherals like printers.

b)

It is more secure than a standalone computer

c)

Data and information cannot be easily shared

d)

Expensive to setup.

7.

Which of these statements is TRUE about a LAN?

a)

A LAN connects computers in a small area such as an office or a small site

b)

A modem is needed to connect a computer to a LAN

c)

A LAN consists of only one computer

d)

A LAN can connect geographically distant sites together

8.
The Internet is an example of a...
a)
MAN
b)
LAN
c)
WAN
9.
When you send a file to another person on the internet, the file is broken up thousands / millions of pieces.
a)
True
b)
False
10.
Which of the following acronyms is used to describe the unique number given to each and every computer on the internet?
a)
IP
b)
ISP
c)
URL
d)
DNS
11.

LANs are useful … (pick two)

a)

to share files and peripherals between users

b)

store user accounts centrally, so users can log in from any device on the network

c)

to provide a user interface

d)

ensure data is properly encrypted

12.
Convert 254 to binary
a)
11110000
b)
11111100
c)
11111111
d)
11111110
13.
Convert 37 to binary
a)
00100101
b)
00100011
c)
00100111
d)
01000101
14.
Convert 196 to binary
a)
11000110
b)
11100100
c)
11000100
d)
11010100
15.
Convert 00010001 to decimal
a)
17
b)
27
c)
37
d)
47
16.
Convert 11001100 to decimal
a)
224
b)
134
c)
104
d)
204
17.
Convert 01000100 to decimal
a)
58
b)
68
c)
78
d)
88
18.

The binary number 1100 converted to decimal is:

a)

13

b)

12

c)

14

19.

The binary number 111 converted to decimal is:

a)

5

b)

7

c)

6

20.

The decimal number 10 converted to binary is:

a)

1000

b)

1010

c)

1011

21.
Convert 65 to binary
a)
01100001
b)
00100001
c)
01000001
d)
00100101
22.
Convert 37 to binary
a)
00100101
b)
00100011
c)
00100111
d)
01000101
23.
Convert 00010001 to decimal
a)
17
b)
27
c)
37
d)
47
24.
Convert 11111111 to decimal
a)
255
b)
245
c)
235
d)
225
25.
What is 12 in binary?
HINT: It has an 8 and a 4 in it!
a)
12
b)
11
c)
1100
d)
1011
26.

1111 to decimal

a)

15

b)

11

c)

12

d)

13

27.

1101 to decimal

a)

15

b)

11

c)

12

d)

13

28.

28 to binary

a)

11100

b)

11001

c)

10011

d)

00111

29.
Convert the hexadecimal number C9 to binary
a)
1100 1001
b)
1100 1000
c)
1100 1010
d)
1100 0101
30.
State the denary representation for the binary number 0011 1101
a)
60
b)
61
c)
62
d)
63
31.
What does 'A' equal in denary?
a)
8
b)
9
c)
10
d)
11
32.
What does 'F' equal in denary?
a)
14
b)
15
c)
16
d)
17
33.
What does 5F equal in denary?
a)
90
b)
95
c)
100
d)
105
34.
Convert the Hex number 1F to binary.
a)
00111111
b)
00001111
c)
00010111
d)
00011111
35.
Convert the binary number 10101010 to Hex
a)
AA
b)
BB
c)
CC
d)
DD
36.
Convert the binary number 11101011 to Hex
a)
EA
b)
EB
c)
BA
d)
BC
37.
Convert the Hex number B9 to binary.
a)
10111001
b)
10111000
c)
10111101
d)
10101001
38.

what 16 in denary converted to hexadecimal

a)

F0

b)

10

c)

h2

39.

what is hexadecimal "FF" in denary

a)

34

b)

253

c)

255

40.
Convert the Hex number B9 to binary.
a)
10111001
b)
10111000
c)
10111101
d)
10101001
41.
Makes the file smaller by deleting parts of the file permanently (forever)
a)
Lossy Compression
b)
Lossless Compression
42.
What would you use compression for?
a)
Making an image file smaller
b)
Modifying an image 
43.

Compression in general makes it _______ to send, upload and stream data

a)

Quicker

b)

Slower

44.

Lossless compression permanently deletes the data

a)

True

b)

False

45.

Select the advantages for lossy compression

a)

Makes the file much smaller

b)

Will send much quicker

c)

A very simple algorithm

d)

The quality will not be affected much

46.

Select the advantages for lossless compression

a)

Makes the file much smaller

b)

Will send quicker

c)

A very simple algorithm

d)

The quality will not be affected much

47.

You would use ______ compression if you still needed to have a high quality image

a)

Lossy

b)

Lossless

48.

You would use ______ compression if space was more important than quality

a)

Lossy

b)

Lossless

49.
Quality of an image depends on:
a)
Resolution
b)
Metadata
c)
Screen size
d)
Computer's speed
50.

The resolution of this image is 600⨉400. This means that:

a)

It consists of 600 pixels and has 400 colours.

b)

It consists of 240,000 pixels.

c)

It requires 240,000 bits to be represented.

d)

It requires 240,000 bytes to be represented.

51.

The number of pixels used to make an image is

a)

resolution

b)

solution

c)

roller

52.

The more pixels you have in an image the better the quality of the image

a)

True

b)

False

53.
What megapixel camera was used for an image with the dimensions of 4000 x 3000 pixels?
a)
7 megapixels
b)
7 million megapixels
c)
12 megapixels
d)
12 million megapixels
54.
What does this flowchart symbol represent?
a)
data input / output
b)
start / end
c)
decision
d)
wait
55.
What does this flowchart symbol represent?
a)
data input / output
b)
decision
c)
start / end
d)
process / sequence
56.
A symbol that starts or ends a flow chart is known as a...
a)
terminator
b)
decision
c)
loop
d)
sequence
57.
A symbol that leads to two possibilities in a flow chart is known as a...
a)
loop
b)
decision
c)
end
d)
sequence
58.

What is pseudocode?

a)

A way of describing a set of instructions in text form

b)

A specific programming language that all computers use

c)

A diagrammatic representation of a set of instructions

59.

What is the symbol for a decision in a flowchart?

a)

A parallelogram

b)

A diamond

c)

A circle

60.

Which of these is the correct symbol for a process in a flowchart?

a)

A diamond

b)

A rectangle

c)

A parallelogram

61.

How are symbols connected together in a flowchart?

a)

Symbols do not get connected together in a flowchart

b)

With lines and an arrow to show the direction of flow

c)

By numbers

62.

It is represented by a diamond and it requires with a “yes” or “no”.

a)

Decision

b)

Process

c)

Sub - process

d)

Terminator

63.

It is represented by a rectangle and it must be described clearly and concisely.

a)

Connector

b)

Decision

c)

Process

d)

Sub - process

64.

What symbol is this?

a)

START

b)

oval

c)

begin the flowchart

d)

circle

65.

What shape is this?

a)

START

b)

oval

c)

begin the flowchart

d)

circle

66.

What symbol is this?

a)

Read DataItem

b)

rectangle

c)

slanted box

d)

Input

e)

parallelogram

67.

What shape is this?

a)

Read DataItem

b)

rectangle

c)

slanted box

d)

Input

e)

parallelogram

68.

What shape is this?

a)

Set Ans = calculation

b)

rectangle

c)

Processing

d)

calculation

69.

What symbol is this?

a)

Set Ans = calculation

b)

rectangle

c)

Processing

d)

calculation

70.

What shape is this?

a)

Question?

b)

Decision

c)

diamond

d)

YES

e)

NO

71.

What symbol is this?

a)

Question?

b)

Decision

c)

diamond

d)

YES

e)

NO

72.

What symbol is this?

a)

Print Ans

b)

parallelogram

c)

slanted box

d)

Output

e)

rectangle

73.

What shape is this?

a)

Print Ans

b)

parallelogram

c)

slanted box

d)

Output

e)

rectangle

74.

What symbol is this?

a)

arrow

b)

downward arrow

c)

down

d)

direction

75.

What shape is this?

a)

arrow

b)

downward arrow

c)

down

d)

direction

76.

What symbol is this?

a)

Stop

b)

oval

c)

end of flowchart

d)

circle

77.

What shape is this?

a)

Stop

b)

oval

c)

end of flowchart

d)

circle

78.

This is an example of...

a)

Narrative

b)

Flowchart

c)

IPO Chart

d)

diagram

79.

This loop will repeat (a)   times

80.

Repeating a task multiple times in programming is known as ?

a)

Iterators

b)

Scope

c)

Looping

81.

FOR loops are

a)

loops which run an unknown number of times

b)

loops which run for a specific number of times

c)

the same as if statements

d)

not part of programming

82.

CU stands for

a)

Control Unit

b)

Copper

c)

Cubic Unit

d)

Cardiac Unit

83.

RAM stands for

(a)  

84.

It is called the brain of the computer

a)

SMPS

b)

RAM

c)

Mother board

d)

CPU

85.

Volatile memory unit

a)

ROM

b)

RAM

c)

Pen drive

d)

Hard disk

86.

Disk drive with a high storage capacity

a)

RAM

b)

CD

c)

Hard disk

d)

Pen drive

87.

Fixed inside the mother board

a)

Pen drive

b)

Printer

c)

Mouse

d)

ROM

88.

CPU stands for central ____ unit.

a)

Protection

b)

Packet

c)

Plasma

d)

Processing

89.
What does the motherboard do?
a)
Processes instructions
b)
Keeps the computer safe
c)
Connects everything together
d)
Generates electricity
90.
What does the CPU do?
a)
Provides electricity
b)
Executes Instructions
c)
Stores Files
d)
Connects everything together
91.

______ stores the data files programs have created and used. 

a)

Long-term memory

b)

Hard Drive

c)

Cache Memory

d)

Used Memory

92.

What does volatile mean?

a)

Data is lost when the power is turned off

b)

Data is NOT lost when the power is turned off

93.
What does the RAM store?
a)
Operating system, programs and data which are currently being used
b)
A program used to start the computer called the �boot program� or BIOS
c)
All programs and documents stored on the computer
94.
My job is to load up the computer. What am I?
a)
RAM
b)
ROM
95.

Why might you use virtual memory?

a)

There is spare storage space

b)

You have no memory installed

c)

Your memory is faulty

d)

You are doing too much and the RAM needs additional help

96.

The primary function of ROM is to...

a)

hold currently running applications

b)

holds the computer's first startup instructions

c)

communicate between the CPU and hard drive

d)

serve as backup RAM

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