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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 · 3 marks

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1Multiple choice1 markThe Internet Swap Remove

An IPv4 address is written as four groups of numbers.

Identify the valid IPv4 address.

[1 mark]
  • A192.168.0
  • B192.168.0.1
  • C192.168.0.1.2
  • D192.168.0.1.256
Mark scheme
  • B 192.168.0.1 (1)
  • The only correct answer is B. The correct answer is 192.168.0.1.
  • A is not correct because it has only three groups of numbers; an IPv4 address has four groups separated by dots
  • C is not correct because it has five groups of numbers; an IPv4 address has four groups separated by dots
  • D is not correct because 256 is outside the valid range for a group, which is 0 to 255
Example answers and how they were marked
Full marks1/1

B 192.168.0.1

Why: Correct option: four groups of numbers, each from 0 to 255, separated by dots (1).

No marks0/1

A 192.168.0

Why: Near miss: only three groups of numbers are shown, so it is not a valid IPv4 address; A is not credited.

No marks0/1

D 192.168.0.1.256

Why: Shows the misconception that a group can be 256; the rule is each group must be 0 to 255, so D is not credited.

2Multiple choice1 markAddressing Swap Remove

Every device that connects to the internet is given an IP address.

Identify the number of bits in an IPv4 address.

[1 mark]
  • A4
  • B8
  • C32
  • D128
Mark scheme
  • C 32 (1)
  • The only correct answer is C. The correct answer is 32.
  • A is not correct because 4 is the number of groups of numbers in an IPv4 address
  • B is not correct because 8 is the number of bits in each group of an IPv4 address
  • D is not correct because 128 is the number of bits in an IPv6 address
Example answers and how they were marked
Full marks1/1

C 32

Why: Correct option (1): an IPv4 address is 32 bits long.

No marks0/1

B 8

Why: 8 is the number of bits in one group of an IPv4 address, not the whole address (mark scheme line B), so no mark.

No marks0/1

D 128

Why: 128 is the length of an IPv6 address, not an IPv4 address (mark scheme line D), so no mark.

3Short recall1 markWired Connections Swap Remove

Wired connections have characteristics that affect network performance.

State what is meant by the range of a wired network connection.

[1 mark]
Mark scheme

Award one mark for:

  • The maximum distance data/a signal can be transmitted before it becomes too weak to be received (1)

Allow 'how far a signal can travel'.

Do not accept the number of devices that can be connected to the network.

Do not accept the speed at which data is transmitted.

Do not accept bandwidth/the maximum capacity of a channel.

Do not accept latency/the delay between a signal being sent and received.

Example answers and how they were marked
Full marks1/1

The maximum distance a signal can be transmitted before it becomes too weak to be received.

Why: Gives the maximum distance a signal can be transmitted before it becomes too weak, which is the creditworthy point (1).

No marks0/1

The maximum capacity of the connection.

Why: This describes bandwidth, which the mark scheme says not to accept for range, so no mark.

No marks0/1

The delay between a signal being sent and received.

Why: This describes latency/delay, which the mark scheme says not to accept for range, so no mark.

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