Daily Practice · GCSE Computer Science
June 1999 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in June 1999, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in June 1999
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st June 1999State the typical maximum capacity of a single-layer DVD.
- 2nd June 1999Explain the role of TCP when a large file is downloaded.
- 3rd June 1999State what is meant by a syntax error.
- 4th June 1999Give one advantage of a relational database over a flat-file database.
- 5th June 1999What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
- 6th June 1999Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
- 7th June 1999Given P = 0 and Q = 1, state the value of P OR Q.
- 8th June 1999Convert the hexadecimal number 3F to denary.
- 9th June 1999A 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.
- 10th June 1999Give one advantage and one disadvantage of using a compiler.
- 11th June 1999Convert the 4-bit binary number 1101 to denary.
- 12th June 1999Two 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.
- 13th June 1999State why an organisation might employ penetration testers to test its network.
- 14th June 1999Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
- 15th June 1999State one example of a file format that commonly uses lossy compression.
- 16th June 1999State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
- 17th June 1999State whether the source code of proprietary (closed source) software is normally available for the public to view.
- 18th June 1999Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
- 19th June 1999A programmer wants any syntax error in their program to be reported before the program starts running at all. State whether a compiler or an interpreter behaves this way, and explain why.
- 20th June 1999Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
- 21st June 1999A 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?
- 22nd June 1999Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
- 23rd June 1999A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
- 24th June 1999Each 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.
- 25th June 1999Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
- 26th June 1999State the two values a Boolean data type can hold.
- 27th June 1999Convert the denary number 39 to an 8-bit binary number, showing your working.
- 28th June 1999Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
- 29th June 1999Name the translator used for assembly language and describe how it differs from a compiler.
- 30th June 1999Convert the hexadecimal number 1A to denary.