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Daily Practice · GCSE Computer Science

June 1960 5-a-day

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June 1960

30 sheets · 150 questions · GCSE

June 1960 compilationAll answers

Every sheet in June 1960

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 1960Given P = 0 and Q = 1, state the value of P OR Q.
  2. 2nd June 1960Convert the hexadecimal number FF to an 8-bit binary number.
  3. 3rd June 1960A 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.
  4. 4th June 1960Describe what syntax highlighting is and how it helps a programmer.
  5. 5th June 1960Convert the 4-bit binary number 1101 to denary.
  6. 6th June 1960Two 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.
  7. 7th June 1960State why an organisation might employ penetration testers to test its network.
  8. 8th June 1960Trace 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).
  9. 9th June 1960State one example of a file format that commonly uses lossy compression.
  10. 10th June 1960State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  11. 11th June 1960State whether the source code of proprietary (closed source) software is normally available for the public to view.
  12. 12th June 1960Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  13. 13th June 1960State the correct order of the three operations used to read data from a text file.
  14. 14th June 1960Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  15. 15th June 1960Explain the role of TCP when a large file is downloaded.
  16. 16th June 1960Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  17. 17th June 1960A 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.
  18. 18th June 1960Each 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.
  19. 19th June 1960Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
  20. 20th June 1960State the two values a Boolean data type can hold.
  21. 21st June 1960Convert the denary number 200 to hexadecimal, showing your working.
  22. 22nd June 1960Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
  23. 23rd June 1960Give one advantage and one disadvantage of using a compiler.
  24. 24th June 1960Convert the hexadecimal number 1A to denary.
  25. 25th June 1960Convert the denary number 156 to an 8 bit binary number.
  26. 26th June 1960Which type of malware can replicate itself and spread across a network without attaching to another program or needing a user to run it?
  27. 27th June 1960Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  28. 28th June 1960An image uses a colour depth of 2 bits per pixel. Calculate the maximum number of different colours it can represent.
  29. 29th June 1960A CPU's cache has a hit rate of 80%. During a task the CPU makes 4000 requests for data. Calculate the number of cache hits and cache misses.
  30. 30th June 1960Describe two negative consequences of throwing away old computer hardware instead of recycling it.