GCSEComputer ScienceEdexcelExam Questions4. NetworksNetworks

Networks (Edexcel GCSE Computer Science): Exam Questions

Exam code: 1CP2

33 mins4 questions
1a4 marks

Networks are described in many different ways.

(i) Give the type of network that covers a small geographical area.

(1)

(ii) Name the characteristic of a wireless network that is measured in metres.

(1)

(iii) Give two disadvantages of a bus network topology.

(2)

How did you do?

1b2 marks

Network protocols control the rules of communication.

(i) Name a network protocol that transmissions from other electrical devices can interfere with and that can be blocked by walls.

(1)

(ii) Name the network protocol used to download a music file from a server.

(1)

How did you do?

1c2 marks

Describe how the link layer of the TCP/IP protocol stack works.

How did you do?

1d4 marks

Construct an expression to calculate the transmission rate, in megabits per second, required to transmit a 1.4 gibibyte file in 13 minutes.

You do not need to do the calculation.

How did you do?

2a2 marks

Complete the diagram of the 4‑layer TCP/IP model.

Flowchart with four blank rectangles, each connected by arrows pointing downwards. The third rectangle contains the word "Internet" and the last "Link".

How did you do?

2b1 mark

Name the network topology that uses terminators to absorb signals.

How did you do?

2c1 mark

Identify the reason computers are connected in a network.

  • To improve encryption

  • To prevent hacking

  • To reduce latency

  • To share peripherals

Choose your answer

2d1 mark

State the network protocol used to request a webpage.

How did you do?

2e2 marks

Explain one benefit to a user of using IMAP to access emails.

How did you do?

2f1 mark

Network speed is the current rate of data transmission, measured in bits per second.

Define the term ‘bandwidth’.

How did you do?

2g2 marks

High‑speed fibre‑optic cables form the internet backbone. Routers connect other networks to this backbone.

Describe how a router enables data to arrive at its destination.

How did you do?

3a5 marks

Devices are connected to networks.

(i) Give two reasons for connecting computers in a network.

(2)

(ii) Describe one way a local area network (LAN) is different from a wide area network (WAN).

(2)

(iv) Define the term ‘latency’.

(1)

How did you do?

3b1 mark

(iii) A network has a speed of 17.08 megabits per second.

Identify the equivalent speed in bits per second.

(1)

  • 17080

  • 17080000

  • 17080000000

  • 17080000000000

Choose your answer

4a1 mark

Data is split up into packets for transmission over a network.

(i) Each device on a network has a unique identifier that is used when sending or receiving packets of data.

State the name of the unique identifier.

(1)

How did you do?

4b1 mark

(ii) Identify the item included between the header and the footer in a data packet.

(1)

  • Data being sent

  • Destination address

  • Packet number

  • Public key

Choose your answer

4c1 mark

State the name of an email protocol.

How did you do?

4d2 marks

Explain one disadvantage of using a star network topology.

How did you do?