Daily Practice · GCSE Computer Science
February 2001 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in February 2001, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in February 2001
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 2001Give one advantage of a relational database over a flat-file database.
- 2nd February 2001Define the term 'interrupt' as used to describe a signal received by a CPU.
- 3rd February 2001An array called items contains [12, 45, 7, 30, 19] at indices 0 to 4. Describe how a linear search would locate the value 30, stating the number of comparisons needed.
- 4th February 2001Evaluate X = NOT A AND B when A = 0 and B = 1.
- 5th February 2001Convert the hexadecimal number 3F to denary.
- 6th February 2001Give one advantage of a star topology compared with a mesh topology.
- 7th February 2001State why a program written in a high level language must be translated.
- 8th February 2001Add the 8-bit binary numbers 00101101 and 00010011, giving your answer as an 8-bit binary number.
- 9th February 2001State the three stages of the fetch-decode-execute cycle in the order they occur.
- 10th February 2001State one weakness of a simple shift cipher compared to modern encryption methods used on networks.
- 11th February 2001Describe what a nested loop does when it processes a 2D array.
- 12th February 2001Define the term 'pixel'.
- 13th February 2001Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
- 14th February 2001Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
- 15th February 2001Evaluate the expression 23 DIV 4.
- 16th February 2001A 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.
- 17th February 2001A 1 TB hard disk drive costs 40 pounds. A 500 GB solid-state drive costs 60 pounds. Calculate the cost per gigabyte of each device, and state which is cheaper per GB. Use 1 TB = 1000 GB.
- 18th February 2001Give two reasons why network communication is divided into layers.
- 19th February 2001A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
- 20th February 2001A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
- 21st February 2001A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
- 22nd February 2001An array contains [9, 2, 6], to be sorted using insertion sort. Show the state of the array after each new element has been inserted into its correct position.
- 23rd February 2001Complete: NOT 0 = ?
- 24th February 2001Convert the denary number 39 to an 8-bit binary number, showing your working.
- 25th February 2001State what LAN stands for.
- 26th February 2001Explain why an interpreter is often preferred while a program is being written.
- 27th February 2001An 8-bit register stores the value 01100000 (denary 96). State the resulting 8-bit binary value after a left shift by 1 place, and state whether an overflow occurs.
- 28th February 2001Which CPU register holds the address of the next instruction to be fetched?