Apps are often accessible via a web browser on any computer

The purpose of buffering is...

temporarily store downloaded data (music / film)

The advantage of a star network

It is easy to install and expand

The most secure method of backing up your data is:

to save your data on the cloud, using SkyDrive, for example

A website address such as "fishnchips.co.uk"

has a unique corresponding IP address such as 84.160.131.1

the amount of data that can be carried

A URL starting with the letters HTTPS indicates that:

communications between the client and server are encrypted

A peer-to-peer network:

allows all computers on the network to exchange files

If the connection between two nodes on the route between sender and destination is broken:

the packet takes an alternative route to the destination

Doubling the size of an encryption key from 32 to 64 bits will:

take a hacker millions of times to hack the encrypted data

What is the Internet?

A collection of interconnected networks

Which of the following is a true statement?

Every website in the world has a unique address

In a client-server network:

there may be hundreds of clients

One disadvantage of a ring network is:

To communicate all nodes must all be switched on

Data is sent in small chunks or “packets”. As well as data, each packet contains:

the‘from’ and ‘to’ addresses and the number of the packet

Which of the following is true of cloud computing?

Many users, can run a program or applicatiat the same time

A bus is one possible local area network topology. One advantage of a bus network is..

the failure of 1 node doesn't affect the rest of the network

A peer-to-peer network:

is commonly found in a home or small office

Advantage of wireless

There is no need to be physically connected

Peer-to-peer networks:

are sometimes used for illegal file sharing

In a packet switching network:

Any type of data (e.g. text, sound, images, video)

usually operates on a single site within a single building

What does the padlock symbol on some websites mean?

Data transmitted via this website are encrypted and secure

HTTPS provides a reasonable guarantee that:

you are communicating with the intended site & not a hacker

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Year 8 - Networks - Assessment

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PG Online - Networks Assessment

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Questions 40

Answers

1
Which of the following types of data should be encrypted before transmitted over a network?
Communications between the Prime Minister & the US President
All the answers
Details of your bank account number, sort code and password
Exam results sent to schools
2
In cloud computing:
Users have access to unlimited free storage of data
A single network server runs the cloud services
There is no danger of sensitive data being hacked
Apps are often accessible via a web browser on any computer
3
The purpose of buffering is...
Speed up the download process
allow several users to download data simultaneously
temporarily store downloaded data (music / film)
Prevent too much data from being downloaded
4
The advantage of a star network
It is easy to install and expand
Is uses less cable than other topologies
Unaffected by the breakdown of the central computer
No extra hardware such as hubs or switches are needed
5
The advantages of a client-server network include:
all of the answers
many computers have access to centralised resources
backup of data is centralised
security is created, managed and enforced
6
The most secure method of backing up your data is:
to use a separate folder for backup on the school network
to send it to a different computer as an email attachment
to save your data on the cloud, using SkyDrive, for example
write it to a Flash memory stick and keep it in your pocket
7
A website address such as "fishnchips.co.uk"
is the same address as fishnchips.com
is not a valid web address
has a unique corresponding IP address such as 84.160.131.1
is the web address of a company based in Ukraine
8
A protocol is
A set of rules
a network configuration
A way of transmitting data
part of a a web address
9
Bandwidth measures..
frequency of the transmission
the amount of data that can be carried
distance between the computers
diameter of cable connecting computers
10
Wide area network (WAN)
use cables, telephone lines, satellites, radio waves
are used by international organisations
cover a larger geographical area
all of the answers
11
A URL starting with the letters HTTPS indicates that:
the site is not part of the world wide web
your identity will be kept secret while you are browsing
communications between the client and server are encrypted
you need a password to gain access to the site
12
A peer-to-peer network:
allows all computers on the network to exchange files
is not vulnerable to hacking
is often used by people working in a large organisation
usually links just two computers
13
Using a shift cipher, (shift 1) what is the plaintext version of “UPEBZ”?
VQFCA
TOADY
TODAY
UPEBZ
14
There are 8 bits in a byte. How long to download a 1 Mega Byte file on an 8 Mega bit connection
0.125 sec
0.01 sec
1 sec
0.1 sec
15
Which can be used to connect a computer to the Internet?
satellite
wi fi
all the answers
Fibre optic broadabnd
16
Cloud computing is used for:
online data storage
automatic phone backups
all of the above
social networking
17
If the connection between two nodes on the route between sender and destination is broken:
the packet takes an alternative route to the destination
the packet is delayed until the connection isrestored
the sender is notified that transmission has failed
the entire message must be resent
18
Doubling the size of an encryption key from 32 to 64 bits will:
take a hacker millions of times to hack the encrypted data
double the time to “crack” using a “brute-force” method
take a hacker 32 times longer to hack the encrypted data
make the data impossible to hack into
19
When might you use the Internet without accessing the World Wide Web?
When usingTwitter
When emailing a friend
When using Facebook
When booking a cinema ticket online
20
What is the Internet?
A place where a huge amount of information is stored
A single network controlled by a central computer
A collection of interconnected networks
The World Wide Web
21
Who owns the World Wide Web?
Tim Berners-Lee
Nobody
A syndicate of Universities and Government organisations
The US security service
22
Which of the following is a true statement?
mylife.fr is a UK web site
Anyone can choose whatever website address they want
mylife.com can be written as mylife.net
Every website in the world has a unique address
23
Ciphertext is:
text which has been encrypted
text which has been decrypted
an algorithm for encrypting data
text which needs to be encrypted
24
In a client-server network:
All files and software are held by the server.
there is one “client” and many “servers”
there can only be one server
there may be hundreds of clients
25
One disadvantage of a ring network is:
Data collisions can occur if there is heavy traffic
To communicate all nodes must all be switched on
The ‘token’ used to transmit data can get lost
It uses a lot of cable
26
A domain name is:
a website address
part of a website address
a company name
a country name
27
Data is sent in small chunks or “packets”. As well as data, each packet contains:
the number of characters in the packet
the‘from’ and ‘to’ addresses and the number of the packet
the speed at which it is to be transmitted
the route that the packet is to take
28
Which of the following is true of cloud computing?
The cloud stores user data but not software
Many users, can run a program or applicatiat the same time
The network server is located on a satellite orbiting earth
CLOUD stands for Connected Links On Unlimited Devices
29
A bus is one possible local area network topology. One advantage of a bus network is..
the failure of 1 node doesn't affect the rest of the network
the performance is not affected by the number of users
failure of the main bus cable will only affect a few users
it is the fastest performing network topology
30
Which of the following is a valid domain name?
.bin
.org
.jpg
.http
31
A peer-to-peer network:
requires only one anti-virus scanner for all computers
uses a central file server loaded with applications
is commonly found in a home or small office
carries out automatic backup for all computers
32
Using a shift cipher, (shift 3 ahead) , what is the encrypted version of the word “PYTHON”
RAVJQP
SBWKRQ
RAVJQP
SAVKQR
33
Data transfer 8Mbps can transfer data at..
8 thousand bits per sec
1 million bits per sec
80 thousand bits per sec
8 million bits per sec
34
Advantage of wireless
It is more secure
Faster connection
Less expensive than cable
There is no need to be physically connected
35
What is a URL (uniform resource locator)?
A search engine
A website
A web address
A browser
36
Peer-to-peer networks:
are a type of client-server network
can only be used by up to ten people
are sometimes used for illegal file sharing
are less vulnerable to viruses than standalone computers
37
In a packet switching network:
Each packet contains the entire message being sent
All packets travel via the same route from sender- recipient
Any type of data (e.g. text, sound, images, video)
The sender decides how many packets are to be used
38
A local area network
is typically used by no more than 6 users
usually operates on a single site within a single building
always uses cable
all the answers
39
What does the padlock symbol on some websites mean?
The screen orientation is locked
You cannot modify any data on the site
You are not allowed to view certain pages on the website
Data transmitted via this website are encrypted and secure
40
HTTPS provides a reasonable guarantee that:
only authorised people can access the site
your data will be safely backed up
it is run by an organisation in the UK
you are communicating with the intended site & not a hacker

Year 8 - Networks - Assessment Flashcards | StudBud