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Daily Practice · GCSE Computer Science

December 2001 - GCSE Computer Science 5-a-day

Every GCSE Computer Science sheet published in December 2001, with answers. Systems, data representation, networks, algorithms and programming.

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December 2001

31 sheets · 155 questions · GCSE

December 2001 compilationAll answers

Every sheet in December 2001

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

  1. 1st December 2001State what is meant by a syntax error.
  2. 2nd December 2001Give one advantage of a relational database over a flat-file database.
  3. 3rd December 2001What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  4. 4th December 2001Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  5. 5th December 2001Given P = 0 and Q = 1, state the value of P OR Q.
  6. 6th December 2001Convert the hexadecimal number 3F to denary.
  7. 7th December 2001A 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.
  8. 8th December 2001Describe what syntax highlighting is and how it helps a programmer.
  9. 9th December 2001Convert the 4-bit binary number 1101 to denary.
  10. 10th December 2001Two 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.
  11. 11th December 2001State why an organisation might employ penetration testers to test its network.
  12. 12th December 2001Trace this algorithm with data = [4, 9, 2, 9, 7] and state the final output. total = 0; count = 0; for i = 0 to 4: if data[i] > 5 then total = total + data[i] and count = count + 1; next i; print(total, count).
  13. 13th December 2001State one example of a file format that commonly uses lossy compression.
  14. 14th December 2001State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  15. 15th December 2001State whether the source code of proprietary (closed source) software is normally available for the public to view.
  16. 16th December 2001Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  17. 17th December 2001A 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.
  18. 18th December 2001Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  19. 19th December 2001Explain the role of TCP when a large file is downloaded.
  20. 20th December 2001Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  21. 21st December 2001A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  22. 22nd December 2001Each 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.
  23. 23rd December 2001Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
  24. 24th December 2001State the two values a Boolean data type can hold.
  25. 25th December 2001Convert the denary number 39 to an 8-bit binary number, showing your working.
  26. 26th December 2001Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
  27. 27th December 2001Give one advantage and one disadvantage of using a compiler.
  28. 28th December 2001Convert the hexadecimal number 1A to denary.
  29. 29th December 2001Convert the denary number 156 to an 8 bit binary number.
  30. 30th December 2001Which type of malware can replicate itself and spread across a network without attaching to another program or needing a user to run it?
  31. 31st December 2001Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.