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Daily Practice · GCSE Computer Science

July 1992 - GCSE Computer Science 5-a-day

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July 1992

31 sheets · 155 questions · GCSE

July 1992 compilationAll answers

Every sheet in July 1992

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

  1. 1st July 1992Explain the role of TCP when a large file is downloaded.
  2. 2nd July 1992A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  3. 3rd July 1992A 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.
  4. 4th July 1992State one function carried out by the operating system of a computer.
  5. 5th July 1992In computational thinking, what is meant by the term 'decomposition'?
  6. 6th July 1992Given A = 1 and B = 1, state the value of A AND B.
  7. 7th July 1992Convert the denary number 200 to hexadecimal, showing your working.
  8. 8th July 1992Define a peer-to-peer network.
  9. 9th July 1992Give one advantage and one disadvantage of using a compiler.
  10. 10th July 1992Convert the denary number 5 to a 4-bit binary number.
  11. 11th July 1992A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  12. 12th July 1992A 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.
  13. 13th July 1992Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  14. 14th July 1992A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  15. 15th July 1992State the type of program that is typically stored in ROM.
  16. 16th July 1992State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  17. 17th July 1992A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  18. 18th July 1992State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  19. 19th July 1992State the typical maximum capacity of a single-layer DVD.
  20. 20th July 1992A user reads the same email on a phone and a tablet, and deleting it on one deletes it on the other. Which protocol is in use and why?
  21. 21st July 1992State what is meant by a syntax error.
  22. 22nd July 1992Define the term 'primary key' as used in a database table.
  23. 23rd July 1992What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  24. 24th July 1992Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  25. 25th July 1992Given P = 0 and Q = 1, state the value of P OR Q.
  26. 26th July 1992Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
  27. 27th July 1992A 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.
  28. 28th July 1992Name the translator used for assembly language and describe how it differs from a compiler.
  29. 29th July 1992Convert the 4-bit binary number 1101 to denary.
  30. 30th July 1992Two 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.
  31. 31st July 1992State why an organisation might employ penetration testers to test its network.