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KS3_CPU_NTWRK_BLN

Total questions: 126

Worksheet time: 1hrs 4mins

Name
Class
Date
1.
Processors have a speed measured in
a)
Hertz
b)
Bits
c)
Bytes
d)
Seconds
2.
Data and Instructions in use are stored in the
a)
Processor
b)
Embedded System
c)
Hard Disk Drive
d)
Main Memory
3.
Typical processor speed of 2016
a)
16Hz
b)
100MHz
c)
4GHz
d)
300GHz
4.
Which of these doesn’t affect the performance of the computer?
a)
Clock Speed
b)
Number Of Cores
c)
Cache Size
d)
The Number Of Instructions In The Program
5.
If the number of cores goes up from 2 to 4 – what is the exact effect on performance?
a)
Performance Decreases
b)
The maximum number of instructions executed per second doubles
c)
The maximum number of instructions executed per second quadruples
d)
The maximum number of instructions executed per second is quartered
6.
If the processing speed goes from 1GHZ to 4GHZ and the processor is changed from an 8 core to a dual core processor – what is the exact effect on the performance of the computer
a)
The number of instructions executed per second doubles
b)
The number of instructions executed per second quadruples
c)
The number of instructions executed per second is halved
d)
The number of instructions executed per second stays the same
7.
The part of a processor in which instructions are executed is known as?
a)
Core
b)
Centre
c)
Execution
d)
Instruction Centre
8.
Moore’s Law
a)
Predicted that the number of transistors on a circuit board would double ever year
b)
Computers would be capable of thinking and learning for themselves by 2020
c)
That the number of cores on a processor would double every year
d)
The performance increase of computers would eventually halt in 2020
9.
Firmware refers to
a)
Any hardware that can’t easily break
b)
A combination of hardware and software
c)
A type of software that is updated to make a computer work better
d)
Hardware used in kitchens
10.
Question 19 If the processing speed goes up from 1GHZ to 4GHZ and the number of cores goes from 1 to 2 – what is the exact effect on the performance of the computer?
a)
Doubled
b)
Quadrupled
c)
Eight Times Faster
d)
Sixteen Times Faster
11.
If the processing speed goes up from 1GHZ to 4GHZ and the number of cores goes from 1 to 8 – what is the exact effect on the performance of the computer?
a)
Eight Times Faster
b)
Sixteen Times Faster
c)
Thirty Two Times Faster
d)
Sixty Four Times Faster
12.
What component holds the address of the next instruction
a)
Memory Address Register
b)
Memory Data Register
c)
Program Counter
d)
Accumulator
13.
Results of calculations are held in this register
a)
Memory Address Register
b)
Memory Data Register
c)
Program Counter
d)
Accumulator
14.
This holds the instruction/data temporarily after it is brought to the processor from the main memor
a)
Memory Address Register
b)
Memory Data Register
c)
Program Counter
d)
Accumulator
15.
This would perform an operation such as 5+8
a)
Arithmetic Logic Unit
b)
Accumulator
c)
Cache
d)
Control Unit
16.
This DOESN'T happen during the Fetch part of the cycle
a)
Address Bus is used
b)
Program Counter increments by one
c)
Arithmetic operations are performed
d)
Main Memory is addressed
17.
This doesn’t happen during the Decode / Execute part of the cycle
a)
Current Instruction is held in the CIR
b)
Results are held in the Accumulator
c)
Status Register updated
d)
Instructions are transferred from Main Memory
18.
Carries address of the next instruction that will be fetched
a)
Address Bus
b)
Data Bus
c)
Control Bus
d)
System Bus
19.
What accurately describes a peripheral?
a)
A component of a computer system
b)
A device that is not directly connected to the CPU
c)
A device that is directly connected to the CPU
d)
A device that is plugged in
20.
What is the purpose of the accumulator?
a)
To perform arithmetic operations
b)
To hold the results of a calculation
c)
To hold the accumulation of instructions that have happened
21.
A ______ is the main storage device in your computer.
a)
CPU
b)
Hard drive
c)
Motherboard
d)
CD-Rom
22.
Optical device, fairly fragile, easy to snap or scratch.
a)
Flash memory
b)
Magnetic Tape
c)
CD
d)
Hard disk
23.
Not intended to be a portable storage device.
a)
CD
b)
Flash memory
c)
DVD
d)
Internal hard disk
24.
Same as 1,024 GB
a)
1 TB
b)
1 GB
c)
1MB
d)
1 KB
25.
Very portable as it is designed to be fitted into small electronic devices.
a)
Flash memory devices
b)
Internal hard disk
c)
Magnetic tape
d)
Server
26.
The most durable storage device as it has not moving parts
a)
Solid State Storage
b)
Magnetic Storage
c)
Optical Storage
27.
Typically stores 650mb of data on it - usually music.
a)
DVD
b)
Blu-ray
c)
CD
d)
Floppy disk
28.
This storage device needs a computer with a specific  drive in order to read the disk. Cannot be read by a CD drive or DVD drive.  Used for high definition films.
a)
Blu-ray
b)
CD
c)
DVD
d)
Bluetooth
29.
Large organisations use this type of storage device to  back up their systems daily.
a)
CD
b)
DVD
c)
Blu-ray
d)
Magnetic tape
30.
A single layer ___ can store about 4.7Gb of data.A double layer ___ can hold over 9Gb of data.
a)
DVD
b)
Flash memory
c)
Internal hard disk
d)
External hard disk
31.
Secondary storage is usually smaller than memory
a)
True
b)
False
32.
Which is the Optical Storage
a)
DVD
b)
HDD
c)
SSD
d)
USB
33.
Which type of backing storage might be used for a full system backup 
a)
USB Flash drive
b)
DVD
c)
Floppy Disk
d)
Removable Hard Drive
34.
Which type of storage has moving parts?
a)
Hard Disk Drive
b)
Flash Drive
c)
DVD
d)
Solid State Drive
35.
Which storage does NOT use light?
a)
DVD
b)
CD
c)
HDD
d)
Blue Ray
36.
A disadvantage of hard drives is
a)
They have moving parts
b)
They are volatile
c)
They don't last long
d)
They are hard to use
37.
Solid State Drives use
a)
Non Volatile Flash Memory
b)
Volatile Flash Memory
c)
Volatile Storage Memory
d)
Non Volatile Magnetic Memory
38.
Large computers used for backup storage are called
a)
Supercomputers
b)
Servers
c)
Clients
d)
Giants
39.
Which is a disadvantage of cloud storage?
a)
It's expensive
b)
It doesn't last long
c)
It could be a security risk
d)
It's 
40.
Where would you NOT currently find an embedded system?
a)
Washing machine
b)
Wardrobe
c)
Credit card reader
d)
Car
41.

Which of the following is not done by abstraction?

a)

Identifies essential details

b)

Disregards non-essential information

c)

Breaks the problem down into smaller tasks

42.

Which of the following is not done by decomposition?

a)

Allows multiple people to work on the problem together

b)

Disregards non-essential information

c)

Breaks the problem down into smaller tasks

43.

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

44.

When designing a building that must be accessible for wheelchairs, which of the following characteristics is non-essential?

a)

Number of doors

b)

Number of walls

c)

Number of wall paintings

45.

One advantage of abstraction is that it means no mistakes can be made

a)

True

b)

False

46.

You could use abstraction to replace specific objects with simple shapes

a)

True

b)

False

47.

This is a good example of decomposition

Sit down

Do homework

a)

True

b)

False

48.

Decomposition allows each task to become _______

a)

More manageable

b)

Easier

c)

Quicker

49.

Decomposition allows the entire task to be completed as _____

a)

A Team

b)

A Whole

c)

Quickly as possible

50.

Abstraction and Decomposition are separate concepts, you would usually choose to do either one or the other

a)

True

b)

False

51.

It is always necessary to decompose a task

a)

True

b)

False

52.

Abstraction and Decomposition are examples of...

a)

Computational Thinking

b)

Algorithmic Thinking

c)

Computer Science

d)

Logical Reasoning

53.

What is pattern recognition?

a)

Breaking down a complex problem into smaller problems

b)

Looking for similarities among and within problems

c)

Building models from patterns

54.

Why do we need to look for patterns in problems?

a)

Patterns make it easier for us to solve complex problems

b)

We don't need to look for patterns

c)

Patterns make it more difficult complex problems

55.

If you don't look for patterns in a problem, your solution might be _____

a)

Wrong

b)

Inefficient

c)

Too slow

56.

Identifying the steps involved in solving a problem

a)

Abstraction

b)

Decomposition

c)

Pattern Recognition

d)

Algorithmic Thinking

57.
Which of the following is an example of thinking computationally?
a)
Planning out your route when going to meet a friend
b)
When going to meet a friend, wandering around until you find them
c)
When going to meet a friend, asking a parent to plan your route for you
58.

Looking for similarities and trends within a problem

a)

Abstraction

b)

Decomposition

c)

Pattern recognition

d)

Algorithmic Thinking

59.

What is a flowchart?

a)

A visual representation of an algorithm.

b)

A diagram that shows abstraction.

c)

A series of shapes.

60.

A school database has lots of information on students, the data manager needs to use abstraction. What data should she leave out?

a)

Age

b)

Guardian's phone numbers

c)

Classes

d)

Eye colour

61.

Which of these is a function of a router?

a)

Forwards data packets along a network

b)

Corrects errors that are found in data packets

c)

A type of transmission media that provides the greatest bandwidth

d)

A server within a network

62.

Which type of transmission media is the least expensive to manufacture?

a)

Coaxial

b)

Twisted Pair

c)

Plastic

d)

Fibre Optic

63.

Which of these components is usually built in to a laptop and is required to connect the computer to a network?

a)

Wireless Access Point

b)

Network Interface Card

c)

Switch

d)

HUB

64.

What is meant by latency in the performance of a network?

a)

The time delay of data travelling from the source to the destination

b)

The maximum rate that data can be transferred at

c)

The number of errors that are found in a data packet after transmission

d)

The route a packet takes when it is being transmitted

65.

What is the role of a web server?

a)

To provide access to website data

b)

To control which devices on a network are able to access the Internet

c)

To request a specific web page from a web host and display the results

d)

To allow the user to create their own web pages

66.

Which of these is a correct definition of DNS?

a)

An internet service that is used to detect errors

b)

An internet service that stores data in large quantities for different companies

c)

An internet service that provides a messaging service for users to communicate

d)

An internet service that translates URLs into IP addresses

67.

What is cloud computing?

a)

Storing large amounts of data on a single computer

b)

Using the internet to store and access data and software remotely

c)

Storing hard copies of data as a backup

d)

Using the internet to communicate with other users

68.

What is a drawback of using cloud computing?

a)

There can be privacy and security issues

b)

More hardware needs to be added to a company network to store data

c)

Only a small amount of data can be stored

d)

Only a small amount of software can be stored

69.

Which of these is a benefit of cloud computing?

a)

It is always cheaper to use cloud computing

b)

They do not need to worry about the Data Protection Act

c)

Data can be accessed anywhere as long as they have an internet connection

d)

Data will always be more secure in a cloud computing system

70.

Which term describes the physical layout of a Network?

a)

Topology

b)

Topping

c)

Topiology

d)

Toppology

71.

Which transmission media has the shortest range?

a)

Copper Cable

b)

Wi-Fi

c)

Bluetooth

d)

Fiber Optic

72.

Which of these is an advantage of Fiber Optic?

a)

It can travel over a very great distance

b)

It is very expensive

c)

It is easy to expand

d)

It makes use of 2.4GHz and 5GHz radio waves

73.

A company wants to use a cheap, wired, transmission media to connect their network. What would you recommend?

a)

Copper Cable

b)

Fiber Optic

c)

Coaxial Cable

d)

Bluetooth

74.

How does fiber optic cable transmit 1s and 0s?

a)

Using radio waves

b)

Using electrical signals and changes in voltage

c)

Using lasers to create pits and lands

d)

Using pulses of light

75.

How are Wi-Fi signals broadcasted?

a)

Through radio waves using wireless Access point

b)

Through a Switch

c)

Through the air waves

d)

All the above

76.

Which of these Wi-Fi frequencies is less able to penetrate through walls?

a)

Bluetooth

b)

2.4 GHz

c)

5 GHz

d)

100 MHz

77.
Define what is meant by a computer network
a)
Two or more computers connected together where they communicate and share files/resources like printers.
b)
One computer not connected to any other computer.
c)
A computer connected to other computers on a network.
d)
Allows wireless devices to connect to a wired network using radio waves. They convert data received through cables into a wireless signal and vice versa.
78.
Which of the following is NOT an advantage of networking stand-alone computers into a local area network?
a)
Transferring files between computers.
b)
Centralised backup of all files.
c)
They are expensive to setup and maintain.
d)
Sharing peripherals such as printers and scanners saves money.
79.
Which of the following is a disadvantage of networking stand-alone computers in to a local area network?
a)
Viruses can spread around the network causing havoc.
b)
If the server, hub or switch fails, users cannot access files or network resources.
c)
Building a network is not cheap.
d)
All of the above.
80.
What is meant by the term 'transmission media'?
a)
A device that connects two local area networks (LANs), or two segments of the same LAN together.
b)
To transmit data over a wired network, the main methods are: ethernet, coaxial and fibre optic.
c)
Is used to extend transmissions so that the signal can cover longer distances.
d)
Stores user files, enabling access of files on any computer on a network. Shares files between network users.
81.
What is meant by a 'repeater'?
a)
A device that connects two local area networks (LANs), or two segments of the same LAN together.
b)
To transmit data over a wired network, the main methods are: ethernet, coaxial and fibre optic.
c)
Is used to extend transmissions so that the signal can cover longer distances.
d)
Stores user files, enabling access of files on any computer on a network. Shares files between network users.
82.
What is the purpose of a network interface card (NIC)?
a)
Built into a pc usually on the motherboard. It allows you to plug an ethernet cable into the computer and helps create a wired network. Every NIC has a unique MAC address so that data on a network can be sent to the correct computer.
b)
A device that connects two local area networks (LANs), or two segments of the same LAN together.
83.
What is meant by a 'file server'?
a)
A device that connects two local area networks (LANs), or two segments of the same LAN together.
b)
To transmit data over a wired network, the main methods are: ethernet, coaxial and fibre optic.
c)
Is used to extend transmissions so that the signal can cover longer distances.
d)
Stores user files, enabling access of files on any computer on a network. Shares files between network users.
84.
What is an advantage of a client-server network?
a)
All files are stored in a central location
b)
Does not need an expensive server because individual workstations are used to access the files
c)
Files and folders cannot be centrally backed up
d)
The server is expensive to purchase
85.
What is an advantage of a peer-to-peer network?
a)
All files are stored in a central location
b)
Does not need an expensive server because individual workstations are used to access the files
c)
Files and folders cannot be centrally backed up
d)
The server is expensive to purchase
86.
What is a disadvantage of a peer-to-peer network?
a)
All files are stored in a central location
b)
Does not need an expensive server because individual workstations are used to access the files
c)
Files and folders cannot be centrally backed up
d)
The server is expensive to purchase
87.
What is a disadvantage of a client-server network?
a)
All files are stored in a central location
b)
Does not need an expensive server because individual workstations are used to access the files
c)
Files and folders cannot be centrally backed up
d)
The server is expensive to purchase
88.
What is an advantage of a client-server network?
a)
If one computer fails it will not disrupt any other part of the network. It just means that those files aren't available to other users at that time.
b)
Users can access shared data which is centrally controlled
c)
Specialist staff such as a network manager is needed
d)
Ensuring that viruses are not introduced to the network is the responsibility of each individual user
89.
What is an advantage of a peer-to-peer network?
a)
If one computer fails it will not disrupt any other part of the network. It just means that those files aren't available to other users at that time.
b)
Users can access shared data which is centrally controlled
c)
Specialist staff such as a network manager is needed
d)
Ensuring that viruses are not introduced to the network is the responsibility of each individual user
90.
What is a disadvantage of a peer-to-peer network?
a)
If one computer fails it will not disrupt any other part of the network. It just means that those files aren't available to other users at that time.
b)
Users can access shared data which is centrally controlled
c)
Specialist staff such as a network manager is needed
d)
Ensuring that viruses are not introduced to the network is the responsibility of each individual user
91.
What is a disadvantage of a client-server network?
a)
If one computer fails it will not disrupt any other part of the network. It just means that those files aren't available to other users at that time.
b)
Users can access shared data which is centrally controlled
c)
Specialist staff such as a network manager is needed
d)
Ensuring that viruses are not introduced to the network is the responsibility of each individual user
92.
Explain what is meant by a 'protocol'.
a)
This term is related to transmitting data over networks.Rather than send a whole file the data is split into 'blocks' or 'packets' which are then sent separately to the destination computer.
b)
A 48-bit address written as 12 hexadecimal digits.  This is hard coded to a network interface card.
c)
A set of numbers used to identify one particular computer or website.
d)
Rules so that computers on all networks can communicate with each other when requesting and providing data and services.
93.
Explain what is meant by a 'packet'.
a)
This term is related to transmitting data over networks.Rather than send a whole file the data is split into 'blocks' or 'packets' which are then sent separately to the destination computer.
b)
A 48-bit address written as 12 hexadecimal digits.  This is hard coded to a network interface card.
c)
A set of numbers used to identify one particular computer or website.
d)
Rules so that computers on all networks can communicate with each other when requesting and providing data and services.
94.
Explain what is meant by an 'IP address'.
a)
This term is related to transmitting data over networks.Rather than send a whole file the data is split into 'blocks' or 'packets' which are then sent separately to the destination computer.
b)
A 48-bit address written as 12 hexadecimal digits.  This is hard coded to a network interface card.
c)
A set of numbers used to identify one particular computer or website.
d)
Rules so that computers on all networks can communicate with each other when requesting and providing data and services.
95.
Explain what is meant by a 'MAC address'.
a)
This term is related to transmitting data over networks.Rather than send a whole file the data is split into 'blocks' or 'packets' which are then sent separately to the destination computer.
b)
A 48-bit address written as 12 hexadecimal digits.  This is hard coded to a network interface card.
c)
A set of numbers used to identify one particular computer or website.
d)
Rules so that computers on all networks can communicate with each other when requesting and providing data and services.
96.

What does TCP stand for?

a)

Transcript Control Protocol

b)

Transition Control Protocol

c)

Transmit Control Protocol

d)

Transmission Control Protocol

97.

What does HTTPS stand for?

a)

Hyper Text Transfer Protocol

b)

Hyper Text Transport Protocol Secure

c)

Hyper Text Transport Protocol

d)

Hyper Text Transfer Protocol Secure

98.

Which protocol is responsible for transferring computer files between client and server on a computer network?

a)

SMTP

b)

FTP

c)

TCP/IP

d)

HTTP

99.

A protocol that downloads emails onto a client computer and removes the mail message from the mail server.

a)

SMTP

b)

SFTP

c)

POP

d)

IMAP

e)

HTTPS

100.

A protocol that allows email messages to be read and stored on a messaging server.

a)

SMTP

b)

SFTP

c)

POP

d)

IMAP

e)

HTTPS

101.

The physical layout of a computer network is called its

a)

topology

b)

geographical location

c)

hierarchy

d)

protocol

e)

architecture

102.

A service that translates a URL addresses into an IP addresses.

a)

DNS

b)

DHCP

c)

Encryption

d)

TCP/IP

e)

UDP/IP

103.

Identify this toplogy

a)

WAN

b)

LAN

c)

Star

d)

Mesh

e)

Ring

104.

Select all the TRUE statements:

a)

A peer-to-peer network has one central controlling computer.

b)

Peer-to-peer networks are easier to set up than client-server networks

c)

Peer-to-peer networks allow individual devices to share files between each other.

d)

Peer-to-peer networks are commonly used in large organisations

e)

It is easier to implement security procedures throughout a client server network than a peer to peer network.

105.

Which network protocol will be used for banks' websites?

a)

HTTPS

b)

HTTP

c)

UDP

d)

SMTP

106.

Which of the following are protocols associated with Emails?

a)

POP

b)

SMTD

c)

SMTP

d)

IMOP

e)

IMAP

107.

What does IMAP stand for?

a)

Instant Message Access Protocol

b)

Internet Message Application Protocol

c)

Internet Message Access Protocol

d)

Internet Message Access Program

108.

HTTPS is preferred to HTTP because:

a)

It is quicker to access

b)

It is encrypted and more secure when transferring data

c)

It has better graphics

d)

It is an easier protocol to use

109.

Select the correct order of layers in the 4 layer model:

a)

Application, Transport, Internet, Link

b)

Transport, Internet, Link, Application

c)

Link, Transport, Application, Internet

d)

Internet, Application, Transport, Link

110.

This address may be shared by multiple devices within a single network.

a)

MAC address

b)

IP address

c)

NIC address

d)

Home address

111.

Pick the statements which are TRUE for a mesh network:

a)

This type of network may be very expensive to set up

b)

This type of network does not have a central point of failure

c)

This type of network would be used in your home

d)

This type of network requires a switch

112.

Which of the following are physical protection from threats?

a)

firewall

b)

CCTV

c)

fences

d)

locks

e)

encryption

113.

Select the rules which might form part of a strong password policy

a)

Your password must be at least 8 characters long

b)

Your password should not contain your name

c)

Your password must include a mix of upper- and lower-case letters

d)

Your password must contain at least 1 number or special character

e)

Your password must be changed every 3 days

114.

Which of the following are features of a firewall?

a)

Block unsafe websites

b)

Prevent unwanted devices from connecting to your trusted network

c)

Filtering packets from known unsafe IP addresses

d)

Blocking phishing emails

e)

Encrypting all the data you send to the internet

115.

Which of these are indicators of a phishing email?

a)

bad spelling and grammar

b)

email uses your real name

c)

sent from a legit-looking address

d)

Link to enter password/personal details

e)

Has a time limit to add a sense of urgency

116.

Where is a MAC address stored

a)

In the CPU

b)

On the NIC

c)

In the router table list

d)

On an SD card in the modem

e)

In the DNS server

117.

What is the output of an OR gate if the inputs are 1 and 0?

a)

0

b)

1

c)

OFF

d)

2

118.

What is the output of an AND gate if the inputs are 1 and 0?

a)

0

b)

1

c)

ON

d)

2

119.

What is the output of a NOT gate if the input is 0?

a)

0

b)

1

c)

OFF

d)

2

120.

A NOT gate has...

a)

Two inputs and one output

b)

One input and one output

c)

One input and two outputs

d)

Two inputs and two outputs

121.

An OR gate has...

a)

Two inputs and one output

b)

One input and one output

c)

One input and two outputs

d)

Two inputs and two outputs

122.

The output of any logic gate can have either of two

a)

Gates

b)

States

c)

Inputs

d)

Outputs

123.

A logic state can only be....

a)

On or 1

b)

Off or 1

c)

1 or 0

d)

In and Out

124.

The output of a gate is only 1 when both inputs are 1

a)

OR

b)

NOT

c)

NAND

d)

AND

125.

A NAND gate is the combination of which two gates

a)

OR and AND

b)

AND and NOT

c)

NOT and OR

d)

OR and NAND

126.

Which of these is a definition of a transistor

a)

Microscopic devices that open and close circuits to communicate electrical signals.

b)

A device used to change a circuit

c)

A type of gate used in a CPU

d)

Circuit components which take several inputs

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