Performance of the CPU Quiz

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Question 1 of 6

1. Question
1 point(s)
Which of the following is not a factor affecting CPU performance?
- Size of RAM
- Size of CACHE
- Other users on the network
- Number of Cores
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Question 2 of 6

2. Question
1 point(s)
When a CPU contains more than one processor these are referred to as cores.

Is the following statement true or false?

“a quad core processor will be twice as fast as a dual core processor”
- True
- False
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Question 3 of 6

3. Question
1 point(s)
What is the purpose of having an extra processor on a graphics card?
- It helps to add more colours to the bitmaps on games and image manipulation programmes
- It shares the load of the processing in the computer by dividing instructions equally
- It runs additional instructions that allow extra programmes like music to run
- It takes the strain from the CPU and runs the instructions that are associated with graphics
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Question 4 of 6

4. Question
1 point(s)
A CPU has a maximum speed of 2.4Ghz. How many instructions could it run at its maximum speed?
- 2.4 hundred per second
- 2.4 thousand per second
- 2.4 million per second
- 2.4 billion per second
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Question 5 of 6

5. Question
1 point(s)
Why does the size of the cache affect the performance of the CPU?
- The cache stores the currently running programmes and data. If the cache runs out then virtual memory must be used.
- The cache stores the users browser history. If this is deleted the CPU will need to obtain input from the user.
- The cache stores the upcoming instructions and data. if it is too small it needs to be refreshed regularly which will create a bottleneck.
- The cache has a finite number of read write cycles. Once it has worn out the computer will not be able to store files and programmes.
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Question 6 of 6

6. Question
1 point(s)
The CPU uses several levels of cache from 1 to 3. Which of these is considered the largest & slowest?
- Level 1
- Level 2
- Level 3
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OCR GCSE Computer Science (J277)

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