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Edexcel GCSE Computer Science (1CP2) Exam Questions

Build a practice paper from 693 exam-style questions, each with its mark scheme and example answers. Print it, or answer it on paper and then open the mark schemes. Or browse the questions by topic.

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3 questions · 4 marks

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1Multiple choice1 markPacket Switching Swap Remove

Identify what a router does with a data packet it receives.

[1 mark]
  • AGives the packet a number
  • BSends it on to the next router
  • CPuts the packets into order
  • DRebuilds the original file
Mark scheme
  • B Sends it on to the next router (1)
  • The only correct answer is B. The correct answer is sends it on to the next router.
  • A is not correct because a packet is given its number by the sending computer before it is sent
  • C is not correct because packets are put back into order by the receiving computer
  • D is not correct because the original file is rebuilt by the receiving computer once all the packets arrive
Example answers and how they were marked
Full marks1/1

B Sends it on to the next router

Why: Selected the action a router performs on a packet it receives (1).

No marks0/1

D Rebuilds the original file

Why: A near miss: rebuilding the file is a packet switching action, but it is done by the receiving computer, not by a router.

No marks0/1

A Gives the packet a number

Why: Misconception: packets are numbered by the sending computer, so a router does not add a packet number.

2Short recall1 markWired Connections Swap Remove

Wired connections have characteristics that affect network performance.

State what is meant by the range of a wired network connection.

[1 mark]
Mark scheme

Award one mark for:

  • The maximum distance data/a signal can be transmitted before it becomes too weak to be received (1)

Allow 'how far a signal can travel'.

Do not accept the number of devices that can be connected to the network.

Do not accept the speed at which data is transmitted.

Do not accept bandwidth/the maximum capacity of a channel.

Do not accept latency/the delay between a signal being sent and received.

Example answers and how they were marked
Full marks1/1

The maximum distance a signal can be transmitted before it becomes too weak to be received.

Why: Gives the maximum distance a signal can be transmitted before it becomes too weak, which is the creditworthy point (1).

No marks0/1

The maximum capacity of the connection.

Why: This describes bandwidth, which the mark scheme says not to accept for range, so no mark.

No marks0/1

The delay between a signal being sent and received.

Why: This describes latency/delay, which the mark scheme says not to accept for range, so no mark.

3Explain2 marksLANs & WANs Swap Remove

A charity has one office. All of its computers are in the same building.

Explain one reason why the charity uses a LAN rather than a WAN to connect its computers.

[2 marks]
Mark scheme

Award up to two marks for a linked explanation such as:

  • A LAN covers a small geographical area (1) because all the charity's computers are in one building/on one site (1)
  • The charity can use its own cabling/equipment (1) so it does not need to rent leased lines from a telecoms provider (1)
  • The charity owns the infrastructure (1) so it avoids the cost of leased lines/external connections that a WAN needs (1)
  • The devices are close together (1) so the LAN can use short, high-speed cabling (1)

For both marks, the expansion must follow/associate with the statement.

Do not accept 'it is faster/better/cheaper' on its own without a linked reason (e.g. short distance, own cabling, no leased lines).

Allow 'the LAN is private/secure' only with a linked reason such as the charity controls its own equipment.

Do not accept 'a LAN is local' or 'a WAN is too far/expensive' without a linked reason about the small area or leased lines.

Do not accept 'the computers are in one building/on one site' on its own because it repeats the stem; it must be linked to a reason such as a LAN covering a small geographical area.

Do not accept 'stronger Wi-Fi/signal' as a reason.

Do not accept 'can share files/printers' on its own because this is a reason for any network, not for choosing a LAN over a WAN.

Example answers and how they were marked
Full marks2/2

All the charity's computers are in one building so a LAN can cover this small geographical area.

Why: Linked point (1) and reason (1): the computers are on one site and a LAN covers a small area.

Some marks1/2

The charity can use its own cabling and equipment.

Why: Earns the first mark for the point about using its own cabling/equipment; it gives no linked reason about avoiding leased lines.

No marks0/2

A LAN is cheaper.

Why: No credit: 'cheaper' on its own is rejected by the mark scheme because it has no linked reason such as avoiding leased lines.

Questions by topic

2.1 Binary

Build a paper on this topic 58
Adding Binary Numbers 6 questions Binary and Hexadecimal Basics 10 questions Binary Shifts 6 questions Binary to Denary Conversion 6 questions Binary to Hexadecimal Conversion 6 questions Denary to Binary Conversion 6 questions Denary to Hexadecimal Conversion 6 questions Denary to Negative Binary Conversion 6 questions Hexadecimal to Binary Conversion 6 questions

2.2 Data representation

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Character Sets 18 questions Images 19 questions Sound 19 questions

2.3 Data storage and compression

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Compression 18 questions Units & Conversion 6 questions

3.1 Hardware

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Embedded Systems 17 questions Fetch Decode Execute Cycle 15 questions Primary Memory 15 questions Secondary Memory 15 questions Stored Program Computers 15 questions

3.2 Software

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File Management 18 questions Memory Management 16 questions Peripheral Management 11 questions Process Management 12 questions Purpose & Function of Operating Systems 17 questions Software Basics 13 questions User Management 18 questions Utility Software 19 questions

3.3 Programming languages

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Low and High Level Languages 19 questions Translators 18 questions

4.1 Networks

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Addressing 16 questions LANs & WANs 16 questions Network Speed 5 questions Packet Switching 16 questions Protocols & Layers 17 questions The Internet 16 questions Topologies 17 questions Wired Connections 17 questions Wireless Connections 18 questions

4.2 Network security

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Network Security Risks 18 questions Preventing Network Security Risks 18 questions

5.1 Environmental

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E-waste 17 questions Manufacturing Technology 19 questions

5.2 Ethical and legal

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Data Protection Act 17 questions Impact of AI 18 questions Intellectual Property 18 questions Software Licences 18 questions

5.3 Cybersecurity

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Malware 18 questions Social Engineering 18 questions

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