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Daily Practice · GCSE Computer Science

September 1985 5-a-day

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September 1985

30 sheets · 150 questions · GCSE

September 1985 compilationAll answers

Every sheet in September 1985

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

  1. 1st September 1985A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  2. 2nd September 1985State the type of program that is typically stored in ROM.
  3. 3rd September 1985State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  4. 4th September 1985A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  5. 5th September 1985State the key difference between a procedure and a function.
  6. 6th September 1985State the typical maximum capacity of a single-layer DVD.
  7. 7th September 1985Define the term protocol.
  8. 8th September 1985State what is meant by a syntax error.
  9. 9th September 1985Give one advantage of a relational database over a flat-file database.
  10. 10th September 1985What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  11. 11th September 1985Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  12. 12th September 1985Given P = 0 and Q = 1, state the value of P OR Q.
  13. 13th September 1985Convert the hexadecimal number 3F to denary.
  14. 14th September 1985A 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.
  15. 15th September 1985Explain the purpose of a breakpoint.
  16. 16th September 1985Convert the 4-bit binary number 1101 to denary.
  17. 17th September 1985Two 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.
  18. 18th September 1985State why an organisation might employ penetration testers to test its network.
  19. 19th September 1985Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  20. 20th September 1985State one example of a file format that commonly uses lossy compression.
  21. 21st September 1985State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  22. 22nd September 1985State whether the source code of proprietary (closed source) software is normally available for the public to view.
  23. 23rd September 1985Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  24. 24th September 1985A 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.
  25. 25th September 1985Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  26. 26th September 1985Name the four layers of the TCP/IP model in order from the one closest to the user.
  27. 27th September 1985Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  28. 28th September 1985A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  29. 29th September 1985Each 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.
  30. 30th September 1985Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?