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Daily Practice · GCSE Computer Science

December 1956 5-a-day

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December 1956

31 sheets · 155 questions · GCSE

December 1956 compilationAll answers

Every sheet in December 1956

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 1956Define the term protocol.
  2. 2nd December 1956A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  3. 3rd December 1956A 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.
  4. 4th December 1956State one function carried out by the operating system of a computer.
  5. 5th December 1956In computational thinking, what is meant by the term 'decomposition'?
  6. 6th December 1956Given A = 1 and B = 1, state the value of A AND B.
  7. 7th December 1956State how many different values can be represented using 5 bits, and explain your reasoning.
  8. 8th December 1956Define a peer-to-peer network.
  9. 9th December 1956Explain the purpose of a breakpoint.
  10. 10th December 1956Convert the denary number 5 to a 4-bit binary number.
  11. 11th December 1956A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  12. 12th December 1956A 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 December 1956Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  14. 14th December 1956A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  15. 15th December 1956State the type of program that is typically stored in ROM.
  16. 16th December 1956State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  17. 17th December 1956A 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 December 1956State the key difference between a procedure and a function.
  19. 19th December 1956State the typical maximum capacity of a single-layer DVD.
  20. 20th December 1956Name the four layers of the TCP/IP model in order from the one closest to the user.
  21. 21st December 1956State what is meant by a syntax error.
  22. 22nd December 1956Give one advantage of a relational database over a flat-file database.
  23. 23rd December 1956What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  24. 24th December 1956Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  25. 25th December 1956Given P = 0 and Q = 1, state the value of P OR Q.
  26. 26th December 1956Convert the hexadecimal number 3F to denary.
  27. 27th December 1956A 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 December 1956A program compiles and runs but always outputs an average that is too small. State the type of error and explain why the translator did not report it.
  29. 29th December 1956Convert the 4-bit binary number 1101 to denary.
  30. 30th December 1956Two 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 December 1956State why an organisation might employ penetration testers to test its network.