Unit 2: A2 Networks

Topic 2.1: Network fundamentals Questions

Practice 20 exam-style questions for IB Computer Science Topic 2.1. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.

1Choose1 mark
2026
Choose the network type that a company would use to link its head office to a factory 200 km away.
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2Identify4 marks
2026
Identify four devices found on a typical network and state the function of each.
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3Identify2 marks
2026
A family connects their laptops, phones and a smart TV to one home network. Identify two resources these devices can share.
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4Identify2 marks
2026
The computers in a school library are joined in a local area network. Identify two resources pupils can share through it.
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5Define1 mark
2026
A web browser and a web server exchange pages using HTTP. Define the term protocol.
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6Explain3 marks
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Explain why the same data is called a segment, a packet and a frame at different points.
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7Choose1 mark
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Choose the protocol that guarantees data arrives complete and in the correct order.
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8Describe4 marks
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Describe what happens to a message as it travels down the layers at the sending device.
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9Explain3 marks
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Explain what is meant by encapsulation in a layered model.
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10Outline2 marks
2026
Outline the purpose of the transport layer.
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11Choose1 mark
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Choose what each layer adds to the data as it passes down the sending device's stack.
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12Suggest3 marks
2026
Suggest why two friends sharing files in one room might use peer-to-peer rather than client–server.
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13Define1 mark
2026
Define the term computer network.
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14Determine3 marks
2026
Determine the usable rate needed to transfer a 4.5 GB file in 10 minutes. Take 1 GB as 8000 megabits.
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15Explain4 marks
2026
Explain two drawbacks to a business of networking its computers.
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16Outline2 marks
2026
Outline what is meant by a client–server network.
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17Distinguish3 marks
2026
Distinguish between a local area network and a wide area network.
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18State1 mark
2026
State two resources that are commonly shared across a network.
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19Describe3 marks
2026
Describe how a switch learns which device is on which port.
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20Explain4 marks
2026
Explain two benefits to a business of networking its computers.
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