Daily Practice · GCSE Computer Science
May 2002 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in May 2002, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in May 2002
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 2002Explain the role of TCP when a large file is downloaded.
- 2nd May 2002Explain why iterative testing, carried out throughout development, tends to make errors cheaper to fix than relying only on final testing.
- 3rd May 2002Give one advantage of a relational database over a flat-file database.
- 4th May 2002Define the term 'interrupt' as used to describe a signal received by a CPU.
- 5th May 2002An 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.
- 6th May 2002Evaluate X = NOT A AND B when A = 0 and B = 1.
- 7th May 2002Convert the hexadecimal number 3F to denary.
- 8th May 2002Give one advantage of a star topology compared with a mesh topology.
- 9th May 2002Give one advantage and one disadvantage of using a compiler.
- 10th May 2002Add the 8-bit binary numbers 00101101 and 00010011, giving your answer as an 8-bit binary number.
- 11th May 2002State the three stages of the fetch-decode-execute cycle in the order they occur.
- 12th May 2002State one weakness of a simple shift cipher compared to modern encryption methods used on networks.
- 13th May 2002Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
- 14th May 2002Define the term 'pixel'.
- 15th May 2002Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
- 16th May 2002Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
- 17th May 2002Evaluate the expression 23 DIV 4.
- 18th May 2002A 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.
- 19th May 2002A 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.
- 20th May 2002A 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?
- 21st May 2002A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
- 22nd May 2002A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
- 23rd May 2002A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
- 24th May 2002An 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.
- 25th May 2002Complete: NOT 0 = ?
- 26th May 2002Convert the denary number 39 to an 8-bit binary number, showing your working.
- 27th May 2002State what LAN stands for.
- 28th May 2002Name the translator used for assembly language and describe how it differs from a compiler.
- 29th May 2002An 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.
- 30th May 2002Which CPU register holds the address of the next instruction to be fetched?
- 31st May 2002Distinguish between the network security threats known as phishing and pharming.