End of topic quiz

Topic 1.3 Computer networks, connections

and protocols
1. What are two advantages of networking computers? [2 marks]

2. What does WAN stand for? [1 mark]

3. What is the definition of ‘bandwidth’? [1 mark]

4. What does the acronym Mbps stand for? [1 mark]

5. Write about the impact that bandwidth can have on the performance of a network.
[3 marks]

In your answer you might consider:

 the speed of the network.

 the type of media being accessed.
 the number of users.

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 6. What are the differences and similarities between a LAN and a WAN? [2 marks]

7. A large supermarket chain is setting up a new client server network. What is meant by
the term ‘client server network’? [2 marks]

8. You plan to use a peer network model for a business. What are two reasons why you
have chosen this network model? [2 marks]

9. A home internet connection goes through a hybrid device. What three network devices
does it typically contain? [3 marks]

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 10. What is the purpose of a router? [1 mark]

11. What does DNS stand for? [1 mark]

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 12. You want to check out the latest team news for your favourite football club
www.soccerfc.com. When you type the address into a browser, the page loads. The main
steps that take place during this process are detailed below. Place these steps in order in
the flow chart: [11 marks]

1. Enter URL into browser

2. DNS responds with details of the name server

3. Name server responds with IP address of the host

4. Server hosting the site sends across content

5. ISP sends IP address to the browser

6. Browser requests IP address of site from ISP

7. Website displayed to the user

8. ISP asks name server for site IP address

9. Browser receives website content

10. Browser sends request to the server hosting the site

11. ISP requests IP address from DNS server

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 13. Many fast broadband connections use fibre optic cable instead of copper. What are two
reasons why fibre optic cable is the preferred choice? [2 marks]

14. Why is using cloud computing useful to some businesses? [2 marks]

15. What is the role of a web server? [1 mark]

16. What is the role of a web client? [1 mark]

17. You have a games console in your bedroom and a video streaming device in your
lounge. You use both devices to watch movies. The Wireless Access Point is located in
the lounge. You have found that you are able to stream movies at a far higher quality in
the lounge than in your bedroom. Why is this? [2 marks]

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 18. Fill in the table with whether each of the statements are true or false [5 marks].

Statement True/False

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

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

networks.

Peer-to-peer networks allow individual devices to share files

between each other.

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

It is easier to implement security procedures throughout a client

server network than a peer to peer network.

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 19. Using the following components, design how a client server network may be set up
[5 marks].
 Server
 2 x workstations
 Switch
 Printer

20. When clicking a hyperlink to a webpage, which device is the server, which device is the
client and what communication happens between them? [3 marks]

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 21. Draw the links between four workstations using a full mesh network topology [2 marks].

22. You are setting up a new network using a Star network topology.

a. Draw the Star network topology using two workstations, a server and a switch. [2 marks]

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 b. What are two reasons a Star network topology has been used to set up the new network? [2
marks]

23. What are two disadvantages of using a Star network topology instead of a Mesh network
topology? [2 marks]

24. What is the definition of ‘protocol’? [1 mark]

25. What does the term POP stand for? [1 mark]

26. What is the protocol that is used to transmit data between different networks? [1 mark]

27. What is the difference between HTTP and HTTPS? [1 mark]

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 28. Data is transmitted across a network in packets. What are three items that each data packet
will contain? [3 marks]

29. Match the protocol to its characteristic [3 marks]

HTTP Used to retrieve emails

Used by web browsers to

IMAP
communicate with web servers.

SMTP Used to send emails.

30. Protocols are divided into layers. Why are layers used? [1 mark]

31. Packet switching is used to send data on the internet. How does packet switching work?
[2 marks]

32. What is the difference between an IP address and a MAC address? [2 marks]

33. What is the difference between IPv4 and IPv6 addresses? [1 mark]

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 34. What is the following 6 byte in hexadecimal? [2 marks]

10100110:11000001:10010000:00010010:10011110:00110110

35. List the following steps which detail the encryption process in the correct order [6 marks]:
1. Client requests HTTPS session
2. Encrypted session key is sent to the server
3. The session key is decrypted with the private key
4. Session encrypted with session key
5. Client creates session key
6. Certificate sent to client from the server

36. What does the acronym FTP stand for? [1 mark]

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 37.
a. What does the acronym POP3 stand for? [1 mark]

b. What is the purpose of POP3? [1 mark]

38. Fill in the table below with either true or false. [5 marks]

Statement True / False

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

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

networks.

Peer-to-peer networks allow individual devices to share files

between each other.

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

It is easier to implement security procedures throughout a client

server network than a peer to peer network.

39. What are three differences between Bluetooth and Wi-Fi? [2 marks]

/92

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