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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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2 questions · 4 marks

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1Short recall2 marksThe Internet Swap Remove

Every device connected to the internet has an IP address.

Define the term IP address.

[2 marks]
Mark scheme

Award one mark for any of the following up to a maximum of two marks:

  • A unique identifier/address/number (1)
  • Given to/identifies a device/computer on a network/the internet (1)
  • Used to route/send data (packets) to the correct destination (1)
  • Assigned to a device when it connects to a network/the internet (1)

Allow 'number' for 'identifier/address/number' when the answer also says it is given to/identifies a device on a network.

Do not accept a domain name/web address (e.g. bbc.co.uk) or a MAC address.

Example answers and how they were marked
Full marks2/2

A unique number given to a device on a network.

Why: Unique number/address (1) and given to a device on a network (1).

Some marks1/2

A unique number.

Why: Unique number/address only (1); it does not say it is given to/identifies a device on a network.

No marks0/2

The name of a website, such as bbc.co.uk.

Why: Gives a domain name, which the mark scheme says not to accept (0).

2Describe2 marksFetch Decode Execute Cycle Swap Remove

A computer has an address bus.

Describe the purpose of the address bus in the fetch-decode-execute cycle.

[2 marks]
Mark scheme

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

  • Carries the address of a memory location (1) that the CPU needs to access/read from or write to (1)
  • Transfers the address of the next instruction (1) to main memory so it can be fetched (1)
  • Carries the address of data/instructions (1) from the CPU to main memory (1) so the correct location is found
  • Is used by the CPU to specify/identify a location in memory (1) by carrying its address along the bus (1)

Award one mark for a correct point even if not developed, e.g. 'it carries the address of a memory location'.

Accept 'the address of the next instruction' without mentioning the program counter, if it is linked to being sent to main memory/to be fetched.

Do not accept responses about carrying data or control signals.

Do not accept responses that say the address bus sends/transfers instructions or data without referring to addresses.

Do not accept vague responses such as 'it carries addresses' without saying what the address is for.

Example answers and how they were marked
Full marks2/2

The address bus carries the address of the next instruction from the program counter to main memory so it can be fetched.

Why: Linked point (1) and development (1): transfers the address of the next instruction to main memory to be fetched. 'From the program counter' is an accepted extra detail, not required.

Some marks1/2

The address bus carries the address of a memory location.

Why: Correct point (1) but no linked development, e.g. that the CPU needs to access it.

No marks0/2

The address bus carries data between the CPU and RAM.

Why: No creditworthy point: confuses the address bus with the data bus.

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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