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Daily Practice · GCSE Computer Science

December 1961 5-a-day

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December 1961

31 sheets · 155 questions · GCSE

December 1961 compilationAll answers

Every sheet in December 1961

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

  1. 1st December 1961A table called books has fields bookId, title, authorId and copiesAvailable. Write an SQL statement that selects the title of every book with more than 2 copies available.
  2. 2nd December 1961State one function carried out by the operating system of a computer.
  3. 3rd December 1961In computational thinking, what is meant by the term 'decomposition'?
  4. 4th December 1961Given A = 1 and B = 1, state the value of A AND B.
  5. 5th December 1961State how many different values can be represented using 5 bits, and explain your reasoning.
  6. 6th December 1961Define a peer-to-peer network.
  7. 7th December 1961Give one advantage and one disadvantage of using a compiler.
  8. 8th December 1961Convert the denary number 5 to a 4-bit binary number.
  9. 9th December 1961A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  10. 10th December 1961A 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.
  11. 11th December 1961Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  12. 12th December 1961A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  13. 13th December 1961State the type of program that is typically stored in ROM.
  14. 14th December 1961State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  15. 15th December 1961A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  16. 16th December 1961State the key difference between a procedure and a function.
  17. 17th December 1961State the typical maximum capacity of a single-layer DVD.
  18. 18th December 1961A 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?
  19. 19th December 1961State what is meant by a syntax error.
  20. 20th December 1961Give one advantage of a relational database over a flat-file database.
  21. 21st December 1961What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  22. 22nd December 1961Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  23. 23rd December 1961Given P = 0 and Q = 1, state the value of P OR Q.
  24. 24th December 1961Convert the hexadecimal number 3F to denary.
  25. 25th December 1961A 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.
  26. 26th December 1961Name the translator used for assembly language and describe how it differs from a compiler.
  27. 27th December 1961Convert the 4-bit binary number 1101 to denary.
  28. 28th December 1961Two 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.
  29. 29th December 1961State why an organisation might employ penetration testers to test its network.
  30. 30th December 1961Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  31. 31st December 1961State one example of a file format that commonly uses lossy compression.