Daily Practice · GCSE Computer Science
August 2020 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in August 2020, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in August 2020
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 2020State the value returned by LENGTH(word) if word stores the string 'Computer'.
- 2nd August 2020Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 3rd August 2020A 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?
- 4th August 2020A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 5th August 2020A 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.
- 6th August 2020State one function carried out by the operating system of a computer.
- 7th August 2020In computational thinking, what is meant by the term 'decomposition'?
- 8th August 2020Given A = 1 and B = 1, state the value of A AND B.
- 9th August 2020State how many different values can be represented using 5 bits, and explain your reasoning.
- 10th August 2020Define a peer-to-peer network.
- 11th August 2020Name the translator used for assembly language and describe how it differs from a compiler.
- 12th August 2020Convert the denary number 5 to a 4-bit binary number.
- 13th August 2020A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
- 14th August 2020A 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.
- 15th August 2020Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
- 16th August 2020A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
- 17th August 2020State the type of program that is typically stored in ROM.
- 18th August 2020State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
- 19th August 2020A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
- 20th August 2020State the key difference between a procedure and a function.
- 21st August 2020State the typical maximum capacity of a single-layer DVD.
- 22nd August 2020Define the term protocol.
- 23rd August 2020State what is meant by a syntax error.
- 24th August 2020Give one advantage of a relational database over a flat-file database.
- 25th August 2020What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
- 26th August 2020Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
- 27th August 2020Given P = 0 and Q = 1, state the value of P OR Q.
- 28th August 2020Convert the hexadecimal number 3F to denary.
- 29th August 2020A 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.
- 30th August 2020Explain the purpose of a breakpoint.
- 31st August 2020Convert the 4-bit binary number 1101 to denary.