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Daily Practice · GCSE Computer Science

August 2001 - GCSE Computer Science 5-a-day

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

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August 2001

31 sheets · 155 questions · GCSE

August 2001 compilationAll answers

Every sheet in August 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 August 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).
  2. 2nd August 2001A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  3. 3rd August 2001State the type of program that is typically stored in ROM.
  4. 4th August 2001State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  5. 5th August 2001A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  6. 6th August 2001Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  7. 7th August 2001State the typical maximum capacity of a single-layer DVD.
  8. 8th August 2001Explain the role of TCP when a large file is downloaded.
  9. 9th August 2001State what is meant by a syntax error.
  10. 10th August 2001A table called members has fields memberId, firstName, lastName and joinYear. Write an SQL statement that adds a new record with memberId 12, firstName 'Priya', lastName 'Shah' and joinYear 2026.
  11. 11th August 2001What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  12. 12th August 2001Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  13. 13th August 2001Given P = 0 and Q = 1, state the value of P OR Q.
  14. 14th August 2001Convert the hexadecimal number FF to an 8-bit binary number.
  15. 15th August 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.
  16. 16th August 2001Give one advantage and one disadvantage of using a compiler.
  17. 17th August 2001Convert the 4-bit binary number 1101 to denary.
  18. 18th August 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.
  19. 19th August 2001State why an organisation might employ penetration testers to test its network.
  20. 20th August 2001Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  21. 21st August 2001State one example of a file format that commonly uses lossy compression.
  22. 22nd August 2001State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  23. 23rd August 2001State whether the source code of proprietary (closed source) software is normally available for the public to view.
  24. 24th August 2001Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  25. 25th August 2001State the correct order of the three operations used to read data from a text file.
  26. 26th August 2001Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  27. 27th August 2001A 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?
  28. 28th August 2001Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  29. 29th August 2001A table called products has fields productId, name, price and stock. Write an SQL statement that changes the price of the product with productId 7 to 15.99.
  30. 30th August 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.
  31. 31st August 2001Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?