A-level CPU performance

Quiz
•
Computers
•
11th Grade
•
Easy
CSC Teachers
Used 8+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following factors is NOT typically associated with CPU performance?
Cache size
Clock speed
Number of cores
Screen resolution
Answer explanation
Screen resolution affects display quality, not CPU performance. In contrast, cache size, clock speed, and number of cores directly influence how efficiently a CPU processes tasks.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does clock speed indicate in a CPU?
The physical size of the CPU
The number of cores in the CPU
The number of instruction cycles per second
The amount of cache memory
Answer explanation
Clock speed indicates the number of instruction cycles a CPU can execute per second, measured in hertz. A higher clock speed generally means better performance, as it allows the CPU to process more instructions in a given time.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a CPU operates at 3 GHz, how many operations can it perform in one second?
30 billion
300 million
3 billion
3 million
Answer explanation
A CPU operating at 3 GHz can perform 3 billion operations per second, as 1 GHz equals 1 billion cycles. Therefore, 3 GHz translates directly to 3 billion operations.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a faster clock speed affect CPU performance?
It increases the size of the cache
It allows for quicker instruction fetching and execution
It reduces power consumption
It decreases the number of cores needed
Answer explanation
A faster clock speed allows the CPU to process instructions more quickly, leading to quicker instruction fetching and execution. This directly enhances overall CPU performance.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of cache size in CPU performance?
To increase the physical size of the CPU
To temporarily hold instructions and data
To manage power consumption
To store the operating system
Answer explanation
Cache size plays a crucial role in CPU performance by temporarily holding instructions and data, allowing for faster access than fetching from main memory. This reduces latency and improves overall processing speed.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of cache in a CPU?
To increase the physical size of the CPU
To temporarily hold instructions and data
To store the operating system
To manage power consumption
Answer explanation
The primary purpose of cache in a CPU is to temporarily hold instructions and data. This allows for faster access compared to main memory, improving overall processing speed and efficiency.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is having data in the cache beneficial for CPU performance?
It increases the clock speed
It enhances graphics performance
It allows for more cores
It reduces the need to fetch data from main memory
Answer explanation
Having data in the cache is beneficial because it reduces the need to fetch data from the slower main memory. This leads to faster data access and improved CPU performance, as the cache is much quicker than main memory.
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