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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 · 6 marks

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1Short recall2 marksSoftware Basics Swap Remove

Every computer system needs an operating system.

State two functions of an operating system.

[2 marks]
Mark scheme

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

  • File management (1)
  • Process management (1)
  • Peripheral management (1)
  • User management (1)

Allow 'managing files', 'managing processes', 'managing peripherals', 'managing users'.

Do not accept examples of utility software, such as anti-malware, backup or defragmentation, as these are not functions of the operating system.

Do not accept 'runs/loads the programs' on its own.

Example answers and how they were marked
Full marks2/2

File management and process management.

Why: Two creditworthy functions from the list, one mark each (1) + (1).

Some marks1/2

It does file management and it loads the programs that the user wants to run.

Why: File management earns one mark (1); 'loads the programs' is not one of the listed functions, so no second mark.

No marks0/2

Anti-malware and backup.

Why: These are examples of utility software, not functions of the operating system, so no mark is awarded.

2Describe2 marksProcess Management Swap Remove

A process ends when its program closes or finishes.

Describe how the operating system terminates a process.

[2 marks]
Mark scheme

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

  • Frees/releases the memory/RAM used by the process (1) so other processes can use it (1)
  • Removes the process from the ready queue/scheduler (1) so it is no longer selected to run on the CPU (1)
  • Releases other resources (files/peripherals) held by the process (1) so they can be used by other processes (1)
  • Removes/updates the process entry in the process table (1) to show the process is no longer running (1)

Allow 'process queue' / 'queue of processes' for ready queue/scheduler.

Allow 'program' for process.

Do not accept responses that only restate that the process/program has ended/closed.

Do not accept responses that only say the process stops running / the computer stops using the program, with no linked description.

Do not accept responses that say the program/file is deleted from storage or that the user closed/deleted the program.

Example answers and how they were marked
Full marks2/2

It frees the memory the process was using so other processes can use it.

Why: Frees memory (1) linked to other processes using it (1).

Some marks1/2

It removes the process from the queue.

Why: One creditworthy point about removing from the queue (1), but no linked development.

No marks0/2

It deletes the program from the hard drive.

Why: Terminating a process does not delete the program file; no creditworthy point.

3Describe2 marksUtility Software Swap Remove

A hard disk can become fragmented as files are saved and deleted.

Describe how disk defragmentation software improves the performance of a hard disk.

[2 marks]
Mark scheme

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

  • Parts of a file are moved so they are stored together/in consecutive locations (1) so the read/write head has less distance to travel to read the file (1)
  • Files are rearranged so that each file is stored in one block (1) which reduces the time taken to open/load the file (1)
  • Free space on the disk is collected into one area (1) so new files can be saved without becoming fragmented (1)
  • The parts of each fragmented file are put in order (1) so fewer movements of the read/write head are needed to read it (1)

Do not accept responses about compressing files, deleting files or increasing the amount of storage, as these are not what defragmentation software does.

Do not accept 'it makes the disk faster' without saying how the files are changed.

Example answers and how they were marked
Full marks2/2

It moves the parts of a file so they are stored together in consecutive locations, so the read/write head does not have to move as far and the file opens more quickly.

Why: Linked point (1) and development (1): the file parts are stored together, which reduces read/write head movement.

Some marks1/2

It reorganises the files on the hard disk so that they are stored together.

Why: The point is made (1) but there is no development saying how this improves performance, so the second mark is not awarded.

No marks0/2

It compresses the files so that they take up less space on the disk.

Why: This describes data compression software, which the mark scheme says is not accepted; no creditworthy point is made.

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

Build a paper on this topic 124
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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