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WorksheetsOCR J275 - Networks Part A
Total questions: 44
Worksheet time: 22mins
Name
Class
Date
1.
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.
2.
Define what is meant by a stand-alone computer
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.
3.
Define what is meant by a workstation or network node.
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.
4.
What is meant by a 'local area network'or LAN?
a)
Two or more computers connected together within a small geographical area such as a home, school or office.
b)
Two or more LAN's connected together over a large geographical area. The largest example is the internet which is a global network of computers.
5.
What is meant by a 'wide area network'or WAN?
a)
Two or more computers connected together within a small geographical area such as a home, school or office.
b)
Two or more LAN's connected together over a large geographical area. The largest example is the internet which is a global network of computers.
6.
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.
7.
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.
8.
What is meant by the term 'topology'?
a)
The term refers to the layout of a computer network.
b)
A computer connected to other computers on a network.
9.
What is meant by a bus network topology?
a)
Computers are connected to a single cable. Only one computer can transmit at any one time.
b)
Computers are connected to adjacent computers in a ring. Computers take turns to transmit.
c)
All computers have their own cable connecting them to a central computer.
10.
What is meant by a ring network topology?
a)
Computers are connected to a single cable. Only one computer can transmit at any one time.
b)
Computers are connected to adjacent computers in a ring. Computers take turns to transmit.
c)
All computers have their own cable connecting them to a central computer.
11.
What is meant by a star network topology?
a)
Computers are connected to a single cable. Only one computer can transmit at any one time.
b)
Computers are connected to adjacent computers in a ring. Computers take turns to transmit.
c)
All computers have their own cable connecting them to a central computer.
12.
Which of the following is an advantage of a bus network topology?
a)
Transmission of data is fairly simple as it only travels in one direction
b)
Very reliable, if one connection fails, it does not affect other users.
c)
Uses less cable than a star network.
13.
Which of the following is an advantage of a ring network topology?
a)
Transmission of data is fairly simple as it only travels in one direction
b)
Very reliable, if one connection fails, it does not affect other users.
c)
Uses less cable than a star network.
14.
Which of the following is an advantage of a star network topology?
a)
Transmission of data is fairly simple as it only travels in one direction
b)
Very reliable, if one connection fails, it does not affect other users.
c)
Uses less cable than a star network.
15.
Which of the following is a disadvantage of a bus network topology?
a)
If the server crashes or stops working then nobody will be able to access their files or use the network.
b)
If there is a problem with the central cable, the entire network stops working.
c)
If a cable breaks, the network doesn't work.
16.
Which of the following is a disadvantage of a ring network topology?
a)
If the server crashes or stops working then nobody will be able to access their files or use the network.
b)
If there is a problem with the central cable, the entire network stops working.
c)
If a cable breaks, the network doesn't work.
17.
Which of the following is a disadvantage of a star network topology?
a)
If the server crashes or stops working then nobody will be able to access their files or use the network.
b)
If there is a problem with the central cable, the entire network stops working.
c)
If a cable breaks, the network doesn't work.
18.
What is meant by a wireless access point?
a)
Devices that decide where data packets go. They are used all over the world. Their job is to take information that arrives through your broadband signal via modem, decipher it, and deliver it to your computer. Routers connect a network to the internet.
b)
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.
19.
What is meant by a router?
a)
Devices that decide where data packets go. They are used all over the world. Their job is to take information that arrives through your broadband signal via modem, decipher it, and deliver it to your computer. Routers connect a network to the internet.
b)
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.
20.
Define what is meant by a hub?
a)
Often referred to as not intelligent, because when it receives a message it transmits them to every computer on a network. This slows the network down.
b)
Intelligent as they can send data to only the intended computers, which makes them faster. They can also send/receive information at the same time.
21.
Define what is meant by a switch?
a)
Often referred to as not intelligent, because when it receives a message it transmits them to every computer on a network. This slows the network down.
b)
Intelligent as they can send data to only the intended computers, which makes them faster. They can also send/receive information at the same time.
22.
What is meant by a 'bridge'?
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.
23.
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.
24.
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.
25.
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.
26.
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.
27.
Explain what is meant by a peer-to-peer network.
a)
With this type of network the files will not be stored on the hard drive of each workstation. Instead they will be stored on a specialised computer called a server. A server is designed to efficiently provide data to a remote client.
b)
Two or more computers connect together. They communicate directly with each other, files are stored on individual computers and can be shared with others, without the need for a file server.
28.
Explain what is meant by a client-server network.
a)
With this type of network the files will not be stored on the hard drive of each workstation. Instead they will be stored on a specialised computer called a server. A server is designed to efficiently provide data to a remote client.
b)
Two or more computers connect together. They communicate directly with each other, files are stored on individual computers and can be shared with others, without the need for a file server.
29.
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
30.
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
31.
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
32.
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
33.
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
34.
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
35.
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
36.
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
37.
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.
38.
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.
39.
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.
40.
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.
41.
What type of network is the 'Internet'?
a)
Packet switching
b)
Circuits switching
42.
What is meant by the 'Internet'?
a)
A global collection of computer networks.
b)
Software used to display webpages.
43.
What is meant by the 'WWW'?
a)
A global collection of computer networks.
b)
Software used to display webpages.
44.
What is the purpose of the domain name system?
a)
The task of the Domain Name System is to translate a domain name such as www.google.com into the correct IP address for the server or service.
b)
The task of the Domain Name system is to split data into packets and transmit them across the internet.
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