The purpose of buffering is to:

temporarily store downloaded data (e.g. a film or music)

A peer-to-peer network:

allows computers on the network to exchange files

What is the Internet?

A collection of interconnected networks

Bandwidth is a measurement of:

the amount of data that can be carried at one time

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

take a hacker millions of times longer to hack the data

One disadvantage of a ring network is:

for the nodes to communicate they must all be switched on

In a packet switching network:

Any type of data e.g. text, sound, images, video can be sent

Which of the following is a true statement?

Every website in the world has a unique address

HTTPS provides a reasonable guarantee that:

you are communicating with the intended site not a hacker

applications are commonly accessible via a web browser

The most secure method of backing up your data is:

to save your data on the Cloud (SkyDrive for example)

In a packet switching network, if the connection between two nodes is broken:

the packet takes an alternative route to the destination

The advantage of a star network is:

It is easy to install and expand with extra nodes

A peer-to-peer network:

is commonly found in home networks

A website address such as www.fishandchips.com

has a unique corresponding IP address such as 84.160.131.1

A URL starting with the letters HTTPS indicates that:

communications are encrypted between the user and website

An advantage of wireless connectivity is:

there is no need to be physically connected

What does the padlock symbol on some websites mean?

data transmitted via this website are encrypted and secure

Which of the following is true of cloud computing?

Many users, can run a program at the same time

In a client-server network:

there may be hundreds of clients

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

failure of one node does not affect the rest of the network

Peer-to-peer networks:

are used for illegal file sharing material such as films

Data is sent over the Internet in small “packets”. As well as the data, each packet contains:

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

A Local Area Network (LAN):

usually operates on a single site or in a single building

studbud

Year 8 networking - March 2017

40 termsStudBud Administration154 plays

End of unit test

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Questions 40

Answers

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

Year 8 networking - March 2017 Flashcards | StudBud