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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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2 questions · 2 marks

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1Multiple choice1 markTopologies Swap Remove

A small office is installing a new network.

Identify the network topology in which every device is connected to a central switch.

[1 mark]
  • ABus
  • BFull mesh
  • CPartial mesh
  • DStar
Mark scheme
  • D Star (1)
  • The only correct answer is D. The correct answer is star. Accept 'star topology'. Do not accept 'switch' or 'hub' alone.
  • A is not correct because a bus topology connects every device to a single shared backbone cable
  • B is not correct because a full mesh connects every device directly to every other device
  • C is not correct because a partial mesh connects some devices directly to each other, not every device to a central switch
Example answers and how they were marked
Full marks1/1

D Star

Why: Correct option (1); a star topology connects every device to a central switch.

No marks0/1

C Partial mesh

Why: A partial mesh does not connect every device to a central switch; no mark.

No marks0/1

B Full mesh

Why: Assumes all topologies connect every device to a central point; a full mesh connects devices directly to each other, so no mark.

2Short recall1 markAddressing Swap Remove

An IPv4 address is made up of four 8-bit numbers separated by dots.

State the range of values that each number in an IPv4 address can have.

[1 mark]
Mark scheme

Award one mark for:

  • 0 to 255 (1)

Allow 0–255 / 0-255 / between 0 and 255 / 0 and 255.

Do not accept 1 to 255 (0 is a valid value).

Do not accept any range that includes 256, e.g. 0 to 256.

Example answers and how they were marked
Full marks1/1

0 to 255

Why: Gives the correct range (1).

No marks0/1

1 to 255

Why: Near miss: excludes 0, which is a valid value; the Do not accept line applies.

No marks0/1

0 to 256

Why: Includes 256, which is not valid; the Do not accept line applies.

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