Revision Library
/Subjects/Computer Science/Daily Practice
Daily Practice · GCSE Computer Science

June 1984 5-a-day

← Today's GCSE Computer Science sheet

June 1984

30 sheets · 150 questions · GCSE

June 1984 compilationAll answers

Every sheet in June 1984

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 1984A 2D array grid is declared as grid[4][6]. State how many rows and columns it has and how many elements it holds in total.
  2. 2nd June 1984A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  3. 3rd June 1984State the type of program that is typically stored in ROM.
  4. 4th June 1984State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  5. 5th June 1984A 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 June 1984State the key difference between a procedure and a function.
  7. 7th June 1984State the typical maximum capacity of a single-layer DVD.
  8. 8th June 1984State the layer that IP operates in, and describe its job.
  9. 9th June 1984State what is meant by a syntax error.
  10. 10th June 1984Give one advantage of a relational database over a flat-file database.
  11. 11th June 1984What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  12. 12th June 1984Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  13. 13th June 1984Given P = 0 and Q = 1, state the value of P OR Q.
  14. 14th June 1984Convert the hexadecimal number 3F to denary.
  15. 15th June 1984A 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 June 1984Describe what syntax highlighting is and how it helps a programmer.
  17. 17th June 1984Convert the 4-bit binary number 1101 to denary.
  18. 18th June 1984Two 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 June 1984State why an organisation might employ penetration testers to test its network.
  20. 20th June 1984Trace 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).
  21. 21st June 1984State one example of a file format that commonly uses lossy compression.
  22. 22nd June 1984State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  23. 23rd June 1984State whether the source code of proprietary (closed source) software is normally available for the public to view.
  24. 24th June 1984Write 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 June 1984A 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.
  26. 26th June 1984Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  27. 27th June 1984Explain the role of TCP when a large file is downloaded.
  28. 28th June 1984Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  29. 29th June 1984A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  30. 30th June 1984Each 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.