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Daily Practice · GCSE Computer Science

March 2008 - GCSE Computer Science 5-a-day

Every GCSE Computer Science sheet published in March 2008, with answers. Systems, data representation, networks, algorithms and programming.

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March 2008

31 sheets · 155 questions · GCSE

March 2008 compilationAll answers

Every sheet in March 2008

The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.

  1. 1st March 2008What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  2. 2nd March 2008Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  3. 3rd March 2008Given P = 0 and Q = 1, state the value of P OR Q.
  4. 4th March 2008Convert the hexadecimal number 3F to denary.
  5. 5th March 2008A network administrator is connecting 10 computers in a server room. Calculate the number of cables needed for a full mesh topology, and state the number needed for a star topology with one central switch.
  6. 6th March 2008Give one advantage and one disadvantage of using a compiler.
  7. 7th March 2008Convert the 4-bit binary number 1101 to denary.
  8. 8th March 2008Two CPUs are compared for a task optimised for multiple cores: CPU A has 2 cores at 4.2 GHz; CPU B has 6 cores at 3.0 GHz. Explain which CPU is likely to perform better for this task.
  9. 9th March 2008State why an organisation might employ penetration testers to test its network.
  10. 10th March 2008Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  11. 11th March 2008State one example of a file format that commonly uses lossy compression.
  12. 12th March 2008State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  13. 13th March 2008State whether the source code of proprietary (closed source) software is normally available for the public to view.
  14. 14th March 2008Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  15. 15th March 2008A programmer wants any syntax error in their program to be reported before the program starts running at all. State whether a compiler or an interpreter behaves this way, and explain why.
  16. 16th March 2008Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  17. 17th March 2008A user reads the same email on a phone and a tablet, and deleting it on one deletes it on the other. Which protocol is in use and why?
  18. 18th March 2008Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  19. 19th March 2008A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  20. 20th March 2008Each pair from the previous question is stored using 2 bytes. Calculate the compression ratio achieved, given the uncompressed row (1 byte per pixel) uses 8 bytes.
  21. 21st March 2008Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
  22. 22nd March 2008State the two values a Boolean data type can hold.
  23. 23rd March 2008Convert the denary number 39 to an 8-bit binary number, showing your working.
  24. 24th March 2008Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
  25. 25th March 2008Name the translator used for assembly language and describe how it differs from a compiler.
  26. 26th March 2008Convert the hexadecimal number 1A to denary.
  27. 27th March 2008Convert the denary number 156 to an 8 bit binary number.
  28. 28th March 2008Which type of malware can replicate itself and spread across a network without attaching to another program or needing a user to run it?
  29. 29th March 2008Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  30. 30th March 2008An image uses a colour depth of 2 bits per pixel. Calculate the maximum number of different colours it can represent.
  31. 31st March 2008A CPU's cache has a hit rate of 80%. During a task the CPU makes 4000 requests for data. Calculate the number of cache hits and cache misses.