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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 · 5 marks

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1Multiple choice1 markAddressing Swap Remove

A packet of data is sent across the internet to a web server. The packet has a header that stores information about the packet.

Identify the information in the packet header that a router uses to forward the packet towards its destination.

[1 mark]
  • AThe destination domain name
  • BThe destination IP address
  • CThe MAC address of the sender
  • DThe name of the file being sent
Mark scheme
  • B The destination IP address (1)
  • The only correct answer is B. The correct answer is the destination IP address.
  • A is not correct because a domain name is converted to an IP address by a DNS server before routing begins
  • C is not correct because the sender's MAC address is only used to deliver the packet on the local network
  • D is not correct because the file name is not used to route packets
Example answers and how they were marked
Full marks1/1

B The destination IP address

Why: Correct option (1): a router reads the destination IP address in the header to forward the packet towards its destination.

No marks0/1

A The destination domain name

Why: A domain name is converted to an IP address by a DNS server before routing begins, so it is not the routing information in the header (mark scheme line A); no mark.

No marks0/1

C The MAC address of the sender

Why: The sender's MAC address is only used to deliver the packet on the local network, so it is not used by the router to forward the packet (mark scheme line C); no mark.

2Short recall2 marksLANs & WANs Swap Remove

Networks can be local or wide.

Give two examples of a local area network (LAN).

[2 marks]
Mark scheme

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

  • A home network (1)
  • A school network / a network within a school (1)
  • An office network / a network within one business building (1)
  • A hospital network (1)
  • A hotel network (1)

Allow a named organisation on a single site/premises, e.g. one shop, one café (1)

Do not accept the internet.

Do not accept an organisation with offices/branches in different countries / a university with campuses in different cities.

Do not accept 'LAN' / 'local area network' on its own.

Do not accept 'a network' with no context.

Example answers and how they were marked
Full marks2/2

A home network and a school network.

Why: Two valid LAN examples, one mark each.

Some marks1/2

A home network and the internet.

Why: Home network (1); the internet is a WAN, so not credited.

No marks0/2

The internet and a bank with offices in different countries.

Why: Both examples are WANs, not LANs.

3Short recall2 marksAddressing Swap Remove

The internet is a global network of networks.

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/number (1)
  • Given to a device on a network/the internet (1)
  • Used to send/receive/route data (to the correct destination) (1)

Allow computer/laptop/phone/printer etc. for device.

Do not accept a website address/domain name.

Do not accept MAC address (this is a hardware identifier set by the manufacturer, not an address given to a device for use on a network).

Do not accept 'an address'/'a location' on its own, without saying that it identifies a device on a network/the internet.

Example answers and how they were marked
Full marks2/2

A unique number given to a device on the internet so that data can be sent to it.

Why: Unique identifier (1) and given to a device on the internet (1); the third creditworthy point is not needed for full marks.

Some marks1/2

A unique number.

Why: Gives a unique identifier (1) but does not say what it is given to or what it is used for.

No marks0/2

The address of a website, such as google.co.uk.

Why: Describes a domain name/website address, not an IP address; the Do not accept line applies.

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