Menu
Exam Questions

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.

Build a paper

Topics (none ticked: all of them)
Question types (none ticked: all of them)

Practice paper

3 questions · 6 marks

Pick again
Print
1Describe2 marksWireless Connections Swap Remove

A family uses a wireless network at home.

Describe how interference can affect the performance of a wireless network.

[2 marks]
Mark scheme

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

  • Other electrical/radio devices nearby (1) interfere with the wireless signal so data is corrupted (1)
  • Interference corrupts data (1) so the data has to be resent, which increases latency/slows the transfer (1)
  • Interference reduces the strength of the signal received (1) which lowers the data transfer rate the connection can support (1)
  • Interference makes the connection drop (1) so data transfer stops/devices have to reconnect (1)

Do not accept responses that only name a device (microwave, phone) without saying how it affects the network.

Do not accept responses that only state the network becomes slower without saying what causes the interference or how it affects the data.

Do not accept responses about wired connections or cables.

Example answers and how they were marked
Full marks2/2

Other electrical devices nearby can interfere with the wireless signal and corrupt data, so the data has to be resent and transfers are slower.

Why: Linked point: other electrical devices interfere and corrupt data (1), developed by the data being resent, which slows the transfer (1).

Some marks1/2

Other electrical devices nearby can interfere with the wireless signal.

Why: Cause given: other electrical devices interfere with the signal (1), but no development of how this affects the data or performance.

No marks0/2

Interference happens when the wireless cable is damaged by other cables.

Why: Misconception about cables; the mark scheme does not accept responses about wired connections or cables.

2Explain2 marksProtocols & Layers Swap Remove

Email protocols are used when an email is sent and received.

Explain the role of SMTP when an email is sent.

[2 marks]
Mark scheme

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

  • Sends outgoing email from the client to the mail server (1) so it can be forwarded/relayed to the recipient's mail server (1)
  • Transfers email between mail servers (1) so it reaches the destination server (1)
  • Pushes/sends the email message (1) because it handles outgoing mail while POP3/IMAP handle incoming mail (1)

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

Do not accept receiving/downloading email or storing email on the server, which is POP3/IMAP.

Example answers and how they were marked
Full marks2/2

SMTP sends the email from the sender's computer to the mail server so it can be forwarded on to the recipient's mail server.

Why: Linked point (1) and reason (1): sends to the mail server so it can be forwarded.

Some marks1/2

SMTP is used to send emails.

Why: Role (1) identified, but no linked reason or expansion of what sending involves.

No marks0/2

SMTP downloads the email to the recipient's device so they can read it.

Why: Downloading email is the role of POP3/IMAP, not SMTP, so no credit is given.

3Explain2 marksAddressing Swap Remove

A laptop is used at home and is then taken on holiday, where it connects to a different network.

Explain why the laptop is given a different IP address when it is used on holiday.

[2 marks]
Mark scheme

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

  • The laptop is connecting to a different network (1) so it needs an address that belongs to/is unique on that network (1)
  • The router/ISP on the new network assigns the address (1) because addresses are given out by the network the device is connected to (1)
  • The home IP address is only valid on the home network (1) so it cannot be used to send data on another network (1)

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

Do not accept 'it has a dynamic IP address' on its own, as this repeats the question.

Do not accept answers that say the IP address is stored in the device's hardware/network card, as this describes the MAC address.

Example answers and how they were marked
Full marks2/2

It is connecting to a different network now, so the router there gives it an address that works on that network.

Why: Point that the laptop is on a different network (1) and linked reason that the new router assigns an address valid/unique on that network (1).

Some marks1/2

Because it is connecting to a different network.

Why: A valid point (1) but no linked reason about where the new address comes from or why the old one cannot be used.

No marks0/2

Because the IP address is built into the laptop's network card and it changes when it is plugged into a new network.

Why: Misconception: an address fixed in the hardware is the MAC address; the mark scheme says not to accept this, so no marks.

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

Build a paper on this topic 56
Character Sets 18 questions Images 19 questions Sound 19 questions

2.3 Data storage and compression

Build a paper on this topic 24
Compression 18 questions Units & Conversion 6 questions

3.1 Hardware

Build a paper on this topic 77
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

Build a paper on this topic 37
Low and High Level Languages 19 questions Translators 18 questions

4.1 Networks

Build a paper on this topic 138
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

Build a paper on this topic 36
Network Security Risks 18 questions Preventing Network Security Risks 18 questions

5.1 Environmental

Build a paper on this topic 36
E-waste 17 questions Manufacturing Technology 19 questions

5.2 Ethical and legal

Build a paper on this topic 71
Data Protection Act 17 questions Impact of AI 18 questions Intellectual Property 18 questions Software Licences 18 questions

5.3 Cybersecurity

Build a paper on this topic 36
Malware 18 questions Social Engineering 18 questions

More ways to revise Edexcel GCSE Computer Science (1CP2)

Activities Flashcards Revision notes

Teachers: build a paper, print it with the mark schemes at the end, and sign your school up to set your classes activities on every topic.

Fetch Decode Explain isn't affiliated with or endorsed by Pearson Edexcel.