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Daily Practice · GCSE Computer Science

June 1974 5-a-day

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June 1974

30 sheets · 150 questions · GCSE

June 1974 compilationAll answers

Every sheet in June 1974

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

  1. 1st June 1974Define a peer-to-peer network.
  2. 2nd June 1974Explain the purpose of a breakpoint.
  3. 3rd June 1974Convert the denary number 5 to a 4-bit binary number.
  4. 4th June 1974A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  5. 5th June 1974A simple cipher shifts every letter 2 places forward in the alphabet, wrapping around so Y becomes A and Z becomes B. Encrypt the plaintext CAT using this cipher.
  6. 6th June 1974Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  7. 7th June 1974A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  8. 8th June 1974State the type of program that is typically stored in ROM.
  9. 9th June 1974State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  10. 10th June 1974A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  11. 11th June 1974State the key difference between a procedure and a function.
  12. 12th June 1974State the typical maximum capacity of a single-layer DVD.
  13. 13th June 1974Name the four layers of the TCP/IP model in order from the one closest to the user.
  14. 14th June 1974State what is meant by a syntax error.
  15. 15th June 1974Give one advantage of a relational database over a flat-file database.
  16. 16th June 1974What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  17. 17th June 1974Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  18. 18th June 1974Given P = 0 and Q = 1, state the value of P OR Q.
  19. 19th June 1974Convert the hexadecimal number 3F to denary.
  20. 20th June 1974A 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.
  21. 21st June 1974A program compiles and runs but always outputs an average that is too small. State the type of error and explain why the translator did not report it.
  22. 22nd June 1974Convert the 4-bit binary number 1101 to denary.
  23. 23rd June 1974Two 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.
  24. 24th June 1974State why an organisation might employ penetration testers to test its network.
  25. 25th June 1974An array named temps holds 12 values. State the index of the first item and the index of the last item.
  26. 26th June 1974State one example of a file format that commonly uses lossy compression.
  27. 27th June 1974State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  28. 28th June 1974State whether the source code of proprietary (closed source) software is normally available for the public to view.
  29. 29th June 1974Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  30. 30th June 1974A 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.