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Edexcel GCSE Computer Science (1CP2) Exam Questions

Build a practice paper from 631 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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5 questions · 10 marks

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1Short recall2 marksUtility Software Swap Remove

Anti-malware software helps keep a computer secure.

State two functions of anti-malware software.

[2 marks]
Mark scheme

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

  • Scans files/downloads/the computer/system for malware (1)
  • Compares files/code against a database of known malware/signatures/definitions (1)
  • Quarantines/removes/deletes infected/suspicious files/malware (1)
  • Prevents/blocks malware from running/being installed (1)
  • Updates the database of malware definitions/signatures (1)

Allow removes/deletes malware for the quarantines/removes bullet.

Do not award both quarantining and removing infected files as two separate functions; they are one function.

Do not award both scanning and preventing/blocking malware if the answer describes real-time scanning that blocks malware; award one only.

Do not accept protects the computer on its own.

Do not accept defragments the disk or backs up files.

Example answers and how they were marked
Full marks2/2

It scans files for malware and quarantines any infected files.

Why: Scans files for malware (1) and quarantines infected files (1).

Some marks1/2

It scans the computer for viruses.

Why: Scanning the computer for malware/viruses (1); no second function.

No marks0/2

It defragments the hard disk so files open more quickly.

Why: Defragmentation is a different utility and does not scan for, quarantine or remove malware; no mark.

2Short recall2 marksPurpose & Function of Operating Systems Swap Remove

A computer can run more than one process at a time.

Give two tasks carried out by the process management function of an operating system.

[2 marks]
Mark scheme

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

  • Deciding which process runs next on the CPU/scheduling processes (1)
  • Allocating processor/CPU time to processes/allowing multitasking (1)
  • Managing the process life-cycle/process states (ready, running, blocked) (1)
  • Handling interrupts so a running process is suspended and another can run (1)
  • Stopping/terminating a process when it has finished (1)

Do not accept 'managing processes' on its own.

Do not accept 'handling interrupts' on its own.

Do not award two marks for the same task expressed twice, e.g. 'deciding which process runs next' and 'scheduling processes', or 'allocating CPU time' and 'giving each process a share of processor time'.

Do not accept 'managing memory/memory management', 'managing files/file management' or 'managing devices/peripherals' (these are other functions of an operating system).

Example answers and how they were marked
Full marks2/2

Deciding which process runs next on the CPU and stopping a process when it has finished.

Why: Scheduling a process (1) and terminating a process (1) are two different named tasks.

Some marks1/2

Deciding which process runs next and scheduling processes.

Why: Both points are the same task expressed twice, so only one mark is awarded under the guidance.

No marks0/2

Managing processes and managing files.

Why: 'Managing processes' repeats the question and earns nothing; 'managing files' is file management, not process management, so it is not credited.

3Short recall2 marksPurpose & Function of Operating Systems Swap Remove

A home computer can have more than one user account.

Name two tasks carried out by the user management function of an operating system.

[2 marks]
Mark scheme

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

  • Creating/deleting user accounts (1)
  • Storing usernames and passwords (1)
  • Checking login details/authenticating a user at login (1)
  • Setting access rights/permissions for each user, e.g. restricting which files/folders/programs/drives they can access (1)

Allow logging in as an example of checking login details.

Do not accept managing users on its own.

Do not accept provides a user interface, as this is not user management.

Do not accept managing files or managing processes, as these are other functions.

Do not accept stopping hackers/protecting from malware, as this is security, not user management.

Example answers and how they were marked
Full marks2/2

It stores usernames and passwords and sets access rights for each user.

Why: Storing usernames and passwords (1) and setting access rights (1) are two different user management tasks.

Some marks1/2

It checks the password at login and manages users.

Why: Checking a password at login earns (1); managing users repeats the question and earns nothing.

No marks0/2

It manages users and stops hackers accessing the computer.

Why: Managing users repeats the question; stopping hackers is security, not user management.

4Short recall2 marksUser Management Swap Remove

A computer can be shared by more than one user.

Define the term user management.

[2 marks]
Mark scheme

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

  • Manages user accounts/profiles/logins (1)
  • Authenticates users when they log in (through passwords/biometrics) (1)
  • Controls what each user is allowed to access (access rights/permissions) (1)
  • Sets which files/folders/resources a user can use (1)
  • Gives different levels of access to different users (e.g. administrator/standard user) (1)

Allow 'decides which users can use the computer' for the manage user accounts/logins mark.

Allow references to access to files/folders/resources for the access rights mark, as this is part of user management, not file management.

Do not accept 'manages users' on its own.

Do not accept 'controls user access' on its own, as it is unclear whether this means logging in or access rights.

Do not accept 'manages files' or 'manages peripherals' (these are other operating system functions).

Example answers and how they were marked
Full marks2/2

The operating system manages user accounts and logins, and sets access rights so each user can only use certain files and resources.

Why: Manages user accounts/logins (1) and controls what each user is allowed to access through access rights (1).

Some marks1/2

It manages the users who can log in to the computer.

Why: Manages user logins (1); no creditworthy point about access rights/permissions.

No marks0/2

It manages the files and peripherals for different users.

Why: File management and peripheral management are other operating system functions, so neither mark is earned.

5Explain2 marksProcess Management Swap Remove

An operating system carries out process management.

Explain one reason why an operating system needs to manage processes.

[2 marks]
Mark scheme

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

  • The CPU can only execute one process at a time (1) so the operating system must decide which process runs next (1)
  • Each process needs CPU time (1) so the operating system must share the CPU between processes (1)
  • One process could use the CPU for too long (1) so the operating system must give other processes a turn (1)
  • A process may be waiting for a resource or user input (1) so the operating system can run another process that is ready (1)
  • The user wants to run more than one program (1) so the operating system must manage which process uses the CPU and when (1)

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

Allow 'program' for 'process'.

Do not accept 'to manage processes' / 'so processes are managed' without a reason.

Do not accept answers about managing files, memory or peripherals.

Example answers and how they were marked
Full marks2/2

The CPU can only run one process at a time, so the operating system must decide which process gets the CPU and for how long.

Why: Linked point (1) and reason (1).

Some marks1/2

The operating system decides which process runs next.

Why: A correct point (1) but no linked reason.

No marks0/2

So that files can be saved in the right place.

Why: This is file management, not process management, so no creditworthy point.

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