Understanding CPU Performance Factors

What is clock speed in a CPU?

• The number of cores in a CPU

• The rate at which a CPU executes instructions, measured in Hertz (Hz)

• The amount of memory a CPU can access

• The temperature at which a CPU operates

How does a higher clock speed affect CPU performance?

• It decreases the CPU's ability to multitask

• It allows more instructions to be processed per second

• It reduces the CPU's power consumption

• It increases the CPU's size

What is a potential downside of increasing a CPU's clock speed?

• It makes the CPU smaller

• It generates more heat

• It reduces the number of cores

• It decreases the CPU's lifespan

What is a CPU core?

• A storage unit within the CPU

• An independent processing unit within the CPU

• A cooling system for the CPU

• A type of software that runs on the CPU

How do multiple CPU cores improve performance?

• By increasing the clock speed

• By allowing parallel processing of tasks

• By reducing the CPU's power consumption

• By increasing the CPU's temperature

What is required for multi-core CPUs to be fully utilised?

• Software that supports multithreading

• A higher clock speed

• More memory

• A larger CPU size

What is pipelining in a CPU?

• A method to increase the number of CPU cores

• A technique where multiple FDE stages are processed simultaneously

• A way to increase the CPU's clock speed

• A cooling system for the CPU

How does pipelining improve CPU efficiency?

• By increasing the CPU's clock speed

• By reducing the number of CPU cores

• By increasing the CPU's throughput

• By decreasing the CPU's size

What is a data hazard in pipelining?

• When the CPU overheats

• When instructions depend on the results of previous instructions

• When the CPU runs out of memory

• When the CPU's clock speed is too high

What is a control hazard in pipelining?

• When the CPU incorrectly predicts the flow of execution

• When the CPU's clock speed is too low

• When the CPU has too many cores

• When the CPU's temperature is too high