The advantage of a star network is:

It is easy to install and expand with extra nodes

One disadvantage of a ring network is:

In order for the nodes to communicate they must all be switched on

An advantage of wireless connectivity is:

there is no need to be physically connected

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

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

What is the Internet?

A collection of interconnected networks

There is no danger of sensitive data being hacked

A URL starting with the letters HTTPS indicates that:

all communications between the client and server are encrypted

In packet switching, if the connection between two nodes on the route between sender and destination is broken:

the packet takes an alternative route to the destination

Bandwidth is a measurement of:

the amount of data that can be carried at a time

A Local Area Network (LAN):

usually operates on a single site or within a single building

Which of the following is a true statement?

Every website in the world has a unique address

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 with each other

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

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

In a packet switching network:

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

studbud

Computer Networks

26 termsStudBud Administration

Made for Year 7 students at WCIB

Flashcards26 cardsFPractice quizPHost liveL

Questions 26

Answers

1
The advantages of a client-server network include:
all of the above
backup of data is
security is created, managed and enforced
many computers have access to centralised resources
2
A data transfer speed of 8Mbps (megabits per second) means that data is transferred at:
eight thousand bits per second
eight million bits per second
eighty thousand bits per second
one million bits per second
3
The advantage of a star network is:
It requires no extra hardware such as hubs and switches
It is easy to install and expand with extra nodes
It uses less cable than other topologies
It is unaffected by a breakdown of the central computer
4
One disadvantage of a ring network is:
In order for the nodes to communicate they must all be switched on
The ‘token’ used to transmit data can get lost
Data collisions can occur if there is heavy traffic on the network
It uses a lot of cable
5
A domain name is:
a company name
a website address
part of a website address
a country name
6
An advantage of wireless connectivity is:
it is more secure
it is a faster connection
it is less expensive than a cable connection
there is no need to be physically connected
7
Ciphertext is:
text which needs to be encrypted
an algorithm for encrypting data
text which has been decrypted
text which has been encrypted
8
There are 8 bits in a byte. How long would it take to download a one Megabyte file at 8Mbps (Megabits per second)?
0.1 seconds
1 second
0.01 seconds
0.125 seconds
9
Data is sent over the Internet in small chunks or “packets”. As well as the data, each packet contains:
the number of characters in the packet
the route that the packet is to take
the ‘from’ and ‘to’ addresses and the number of the packet
the speed at which it is to be transmitted
10
What is the Internet?
the World Wide Web
A single network controlled by a central computer
A collection of interconnected networks
A place where a huge amount of information is stored
11
In cloud computing:
A single network server runs the cloud services
There is no danger of sensitive data being hacked
Software and applications are commonly accessible via a web browser
Users have access to unlimited free storage of data
12
A URL starting with the letters HTTPS indicates that:
your identity will be kept secret while you are browsing the site
you need a password to gain access to the site
all communications between the client and server are encrypted
the site is not part of the world wide web
13
In packet switching, if the connection between two nodes on the route between sender and destination is broken:
the packet is delayed until the connection is restored
the packet takes an alternative route to the destination
the sender is notified that transmission has failed
the entire message must be resent
14
A protocol is...
a set of rules
a network configuration
a part of a web address
A way of transmitting data
15
Bandwidth is a measurement of:
the diameter of cable used to connect two networked computers
the frequency of data transmission
the distance between two computers in a network
the amount of data that can be carried at a time
16
A Local Area Network (LAN):
usually operates on a single site or within a single building
is typically used by no more than six users simultaneously
all of these
always uses cables to connect
17
Which of the following is a true statement?
Every website in the world has a unique address
Anyone can choose whatever website address they want
www.mylife.fr is a valid address for a website based in the UK
www.mylife.com is another way of writing the address mylife.net
18
The purpose of buffering is to:
prevent too much data from being downloaded
temporarily store downloaded data (e.g. a film or music)
speed up the download process
allow several users to download data simultaneously
19
A peer-to-peer network:
is often used by people working in a large organisation
is not vulnerable to hacking
allows computers on the network to exchange files with each other
usually links just two computers
20
Which of these can be used to connect a computer to the Internet?
fibe-optic broadband
satellite
wireless (Wi-Fi)
all of these
21
A bus is one possible local area network topology. One advantage of a bus network is
the failure of one node does not affect the rest of the network
it has the fastest performance of any network topology
the performance of the network is unaffected by the number of users
failure of the main bus cable will only affect a few users
22
Which of the following is a valid domain name?
.org
.bin
.jpg
.chillguy
23
Wide Area Networks (WANs)
are used by international organizations
all of these
cover a large geographical area
use cables, telephone lines, satellites and radio waves to connect
24
In a packet switching network:
All packets travel via the same route from sender to recipient
Each packet contains the entire message being sent
The sender decides how many packets are to be used
Any type of data (e.g. text, sound, images, video) can be sent
25
When might you use the Internet without accessing the World Wide Web?
When using X (formerly Twitter)
When booking a cinema ticket online
When emailing a friend
When accessing facebook.com
26
What is a URL (Uniform Resource Locator)?
A website
A web address
A browser
A search engine

Computer Networks Flashcards | StudBud