Daily Practice · GCSE Computer Science
April 2000 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in April 2000, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in April 2000
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 2000Define the term protocol.
- 2nd April 2000State the term used for realistic data that a program would be expected to handle during normal use.
- 3rd April 2000Give one advantage of a relational database over a flat-file database.
- 4th April 2000State the difference between lossy and lossless compression.
- 5th April 2000State the condition that must be met before a binary search can be used on an array.
- 6th April 2000A logic circuit has inputs C and D. C feeds into a NOT gate; the output of the NOT gate and D feed into an OR gate, giving output Y. Write the Boolean expression for Y and state its value when C = 1 and D = 0.
- 7th April 2000Convert the hexadecimal number 3F to denary.
- 8th April 2000Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
- 9th April 2000Explain the purpose of a breakpoint.
- 10th April 2000Convert the denary number 45 to hexadecimal.
- 11th April 2000What does the acronym CPU stand for?
- 12th April 2000State what the term malware means.
- 13th April 2000Explain why a running maximum should be initialised to the first element of the array rather than to 0.
- 14th April 2000An uncompressed file is 6000 KB. After lossless compression it is 1500 KB. Calculate the compression ratio in the form n:1 (original size : compressed size).
- 15th April 2000Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 16th April 2000Which piece of UK legislation controls how organisations must store and use people's personal data?
- 17th April 2000Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 18th April 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.
- 19th April 2000Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 20th April 2000Name the four layers of the TCP/IP model in order from the one closest to the user.
- 21st April 2000A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 22nd April 2000A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
- 23rd April 2000State one function carried out by the operating system of a computer.
- 24th April 2000In computational thinking, what is meant by the term 'decomposition'?
- 25th April 2000Given A = 1 and B = 1, state the value of A AND B.
- 26th April 2000Convert the denary number 39 to an 8-bit binary number, showing your working.
- 27th April 2000Define a peer-to-peer network.
- 28th April 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.
- 29th April 2000Convert the denary number 5 to a 4-bit binary number.
- 30th April 2000A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.