Daily Practice · GCSE Computer Science
November 2022 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in November 2022, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in November 2022
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 2022What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
- 2nd November 2022Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
- 3rd November 2022Given P = 0 and Q = 1, state the value of P OR Q.
- 4th November 2022Convert the hexadecimal number FF to an 8-bit binary number.
- 5th November 2022A 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.
- 6th November 2022Explain the purpose of a breakpoint.
- 7th November 2022Convert the 4-bit binary number 1101 to denary.
- 8th November 2022Two 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.
- 9th November 2022State why an organisation might employ penetration testers to test its network.
- 10th November 2022Explain why a running maximum should be initialised to the first element of the array rather than to 0.
- 11th November 2022State one example of a file format that commonly uses lossy compression.
- 12th November 2022State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
- 13th November 2022State whether the source code of proprietary (closed source) software is normally available for the public to view.
- 14th November 2022Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
- 15th November 2022State the correct order of the three operations used to read data from a text file.
- 16th November 2022Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
- 17th November 2022Name the four layers of the TCP/IP model in order from the one closest to the user.
- 18th November 2022Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
- 19th November 2022A 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.
- 20th November 2022Each pair from the previous question is stored using 2 bytes. Calculate the compression ratio achieved, given the uncompressed row (1 byte per pixel) uses 8 bytes.
- 21st November 2022Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
- 22nd November 2022State the two values a Boolean data type can hold.
- 23rd November 2022Convert the denary number 200 to hexadecimal, showing your working.
- 24th November 2022Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
- 25th November 2022A 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.
- 26th November 2022Convert the hexadecimal number 1A to denary.
- 27th November 2022Convert the denary number 156 to an 8 bit binary number.
- 28th November 2022Which type of malware can replicate itself and spread across a network without attaching to another program or needing a user to run it?
- 29th November 2022An array named temps holds 12 values. State the index of the first item and the index of the last item.
- 30th November 2022An image uses a colour depth of 2 bits per pixel. Calculate the maximum number of different colours it can represent.