Daily Practice · GCSE Computer Science
October 1963 5-a-day
Every sheet in October 1963
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st October 1963Convert the hexadecimal number FF to an 8-bit binary number.
- 2nd October 1963Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
- 3rd October 1963Give one advantage and one disadvantage of using a compiler.
- 4th October 1963Convert the denary number 45 to hexadecimal.
- 5th October 1963What does the acronym CPU stand for?
- 6th October 1963State what the term malware means.
- 7th October 1963Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
- 8th October 1963An uncompressed file is 6000 KB. After lossless compression it is 1500 KB. Calculate the compression ratio in the form n:1 (original size : compressed size).
- 9th October 1963Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 10th October 1963Which piece of UK legislation controls how organisations must store and use people's personal data?
- 11th October 1963Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 12th October 1963State the correct order of the three operations used to read data from a text file.
- 13th October 1963Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 14th October 1963A 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?
- 15th October 1963A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 16th October 1963A 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.
- 17th October 1963State one function carried out by the operating system of a computer.
- 18th October 1963In computational thinking, what is meant by the term 'decomposition'?
- 19th October 1963Given A = 1 and B = 1, state the value of A AND B.
- 20th October 1963Convert the denary number 200 to hexadecimal, showing your working.
- 21st October 1963Define a peer-to-peer network.
- 22nd October 1963Name the translator used for assembly language and describe how it differs from a compiler.
- 23rd October 1963Convert the denary number 5 to a 4-bit binary number.
- 24th October 1963A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
- 25th October 1963A 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.
- 26th October 1963Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
- 27th October 1963A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
- 28th October 1963State the type of program that is typically stored in ROM.
- 29th October 1963State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
- 30th October 1963A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
- 31st October 1963State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.