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GCSE Computer Science Revision

Total questions: 24

Worksheet time: 14mins

Name
Class
Date
1.

Memory used to make up for the difference in speed between two internal components.

a)

Niche

b)

Cash

c)

Cache

d)

Register

2.

The part of the CPU that performs calculations and logic operations

a)

Register

b)

Control Unit

c)

Clock

d)

Arithmetic/logic unit (ALU)

3.

A storage location inside the CPU used to hold an instruction, an address or other single item of data.

a)

Control Unit

b)

Arithmetic/Logic Unit

c)

Register

d)

Clock

4.

What am I? A network that covers a relatively small geographical area, often a single site.

a)

Local Area Network (LAN)

b)

Wireless local area network (WLAN)

c)

Wide Area Network

5.

A protocol can be defined as a set of rules that govern how communications on a network should be formatted and what data they should include

a)

True

b)

False

6.

This Network Topology could be used to describe The Internet.

a)

A Mesh Network

b)

A Ring Network

c)

A Star Network

d)

A Bus Network

7.

True or False: Peer to Peer Networks are only used to distribute and share files illegally.

a)

True

b)

False

8.

An algorithm is

a)

sequence of steps to complete a task

b)

instructions for a computer to follow

c)

breaking a problem down into chunks

d)

a flowchart

9.
What is pseudocode?
a)
Simplified programming language, that is not a specific language
b)
Complicated programming language
c)
Simple programming language, which is linked to a specific language
d)
A type of cheese
10.
How many megabytes are in 1 gigabyte?
a)
1024
b)
1
c)
1024 x 10 = 10240
11.
What is the process called for  converting analogue sound into binary (digital format)?
a)
Conversions
b)
Sampling
c)
Bit Rate
d)
Converting
12.

The protocol is used when sending email through the Internet. It details the format that messages are sent in, what commands email servers should understand and they should respond to them

a)

POP3

b)

IMAP

c)

SMTP

13.

This protocol is used for for retrieving email from an email server. It will retrieve the email and delete it on the server.

a)

POP3

b)

IMAP

c)

SMTP

14.

Which protocol is most commonly used to deliver web pages?

a)

HTTP

b)

HTML

c)

CSS

d)

FTP

15.
What are the only two numbers you can use in binary?
a)
0 and 1
b)
1 and 2
c)
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
d)
1, 2, 4, 8, 16
16.
If a binary number ends with a 1, it must be...
a)
An odd number
b)
An even number
c)
A prime number
d)
The number 12
17.
How is our number system different from the binary system?
a)
Our number system is base-5; the binary system is base-3
b)
Our number system is base-10; the binary system is base-2
c)
Our number system is base-10; the binary system is base-1
d)
Our number system is base 100; the binary system is base-2
18.

The binary codes representing each of the instructions in the in the instruction set.

a)

Translator

b)

Machine code

c)

Source Code

d)

Assembly language

19.

A program that coverts source code into machine code

a)

Object code

b)

Interpreter

c)

Compiler

d)

A translator

20.

CPUs only run programs written in

a)

Machine code

b)

Python

c)

Java

d)

C

21.
Convert 128 to binary
a)
10000000
b)
01111110
c)
10000001
d)
11001100
22.
How many bits is a nibble made up of?
a)
1
b)
2
c)
3
d)
4
23.
ASCII stands for...
a)
The American Standard Code for Information Interchange
b)
The Authentic Style Code for Information Interchange
c)
The American System Control for Information Interchange
d)
The Authentic System Coding for Information Interchange
24.
Convert 128 to binary
a)
10000000
b)
01111110
c)
10000001
d)
11001100