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Daily Practice · GCSE Computer Science

March 1993 - GCSE Computer Science 5-a-day

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March 1993

31 sheets · 155 questions · GCSE

March 1993 compilationAll answers

Every sheet in March 1993

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

  1. 1st March 1993State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  2. 2nd March 1993A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  3. 3rd March 1993State the key difference between a procedure and a function.
  4. 4th March 1993State the typical maximum capacity of a single-layer DVD.
  5. 5th March 1993State the layer that IP operates in, and describe its job.
  6. 6th March 1993State what is meant by a syntax error.
  7. 7th March 1993Give one advantage of a relational database over a flat-file database.
  8. 8th March 1993What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  9. 9th March 1993Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  10. 10th March 1993Given P = 0 and Q = 1, state the value of P OR Q.
  11. 11th March 1993Convert the hexadecimal number 3F to denary.
  12. 12th March 1993A 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.
  13. 13th March 1993Describe what syntax highlighting is and how it helps a programmer.
  14. 14th March 1993Convert the 4-bit binary number 1101 to denary.
  15. 15th March 1993Two 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.
  16. 16th March 1993State why an organisation might employ penetration testers to test its network.
  17. 17th March 1993Trace 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).
  18. 18th March 1993State one example of a file format that commonly uses lossy compression.
  19. 19th March 1993State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  20. 20th March 1993State whether the source code of proprietary (closed source) software is normally available for the public to view.
  21. 21st March 1993Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  22. 22nd March 1993A 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.
  23. 23rd March 1993Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  24. 24th March 1993Explain the role of TCP when a large file is downloaded.
  25. 25th March 1993Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  26. 26th March 1993A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  27. 27th March 1993Each 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.
  28. 28th March 1993Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
  29. 29th March 1993State the two values a Boolean data type can hold.
  30. 30th March 1993Convert the denary number 39 to an 8-bit binary number, showing your working.
  31. 31st March 1993Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.