Daily Practice · GCSE Computer Science
September 2000 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in September 2000, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in September 2000
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st September 2000State what is meant by a syntax error.
- 2nd September 2000Give one advantage of a relational database over a flat-file database.
- 3rd September 2000What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
- 4th September 2000Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
- 5th September 2000Given P = 0 and Q = 1, state the value of P OR Q.
- 6th September 2000Convert the hexadecimal number 3F to denary.
- 7th September 2000A 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.
- 8th September 2000A 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.
- 9th September 2000Convert the 4-bit binary number 1101 to denary.
- 10th September 2000Two 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.
- 11th September 2000State why an organisation might employ penetration testers to test its network.
- 12th September 2000An array named temps holds 12 values. State the index of the first item and the index of the last item.
- 13th September 2000State one example of a file format that commonly uses lossy compression.
- 14th September 2000State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
- 15th September 2000State whether the source code of proprietary (closed source) software is normally available for the public to view.
- 16th September 2000Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
- 17th September 2000A 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.
- 18th September 2000Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
- 19th September 2000State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
- 20th September 2000Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
- 21st September 2000A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
- 22nd September 2000Each 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.
- 23rd September 2000Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
- 24th September 2000State the two values a Boolean data type can hold.
- 25th September 2000Convert the denary number 39 to an 8-bit binary number, showing your working.
- 26th September 2000Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
- 27th September 2000State why a program written in a high level language must be translated.
- 28th September 2000Convert the hexadecimal number 1A to denary.
- 29th September 2000Convert the denary number 156 to an 8 bit binary number.
- 30th September 2000Which type of malware can replicate itself and spread across a network without attaching to another program or needing a user to run it?