Daily Practice · GCSE Computer Science
November 2000 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in November 2000, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in November 2000
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 2000Complete: NOT 0 = ?
- 2nd November 2000Convert the denary number 200 to hexadecimal, showing your working.
- 3rd November 2000State what LAN stands for.
- 4th November 2000Describe what syntax highlighting is and how it helps a programmer.
- 5th November 2000An 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.
- 6th November 2000Which CPU register holds the address of the next instruction to be fetched?
- 7th November 2000Distinguish between the network security threats known as phishing and pharming.
- 8th November 2000Trace this algorithm with data = [4, 9, 2, 9, 7] and state the final output. total = 0; count = 0; for i = 0 to 4: if data[i] > 5 then total = total + data[i] and count = count + 1; next i; print(total, count).
- 9th November 2000A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
- 10th November 2000A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
- 11th November 2000A streaming company records which shows each user watches and uses this to recommend similar shows. Explain one ethical concern this could raise, even if the company only uses the data to improve recommendations.
- 12th November 2000State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
- 13th November 2000State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
- 14th November 2000Give one example of an optical secondary storage device.
- 15th November 2000Explain the role of TCP when a large file is downloaded.
- 16th November 2000State the term used for realistic data that a program would be expected to handle during normal use.
- 17th November 2000Define the term 'primary key' as used in a database table.
- 18th November 2000State the difference between lossy and lossless compression.
- 19th November 2000State the condition that must be met before a binary search can be used on an array.
- 20th November 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.
- 21st November 2000Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
- 22nd November 2000Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
- 23rd November 2000Give one advantage and one disadvantage of using a compiler.
- 24th November 2000Convert the denary number 45 to hexadecimal.
- 25th November 2000What does the acronym CPU stand for?
- 26th November 2000State what the term malware means.
- 27th November 2000Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
- 28th November 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).
- 29th November 2000Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 30th November 2000Which piece of UK legislation controls how organisations must store and use people's personal data?