GCSE Clock speed

What does CPU clock speed measure?

• The number of instructions a CPU can execute in one second.
• The number of clock cycles a CPU can perform in one second.
• The amount of data a CPU can process in one minute.
• The total power consumption of a CPU.

How is clock speed typically measured?

• In megabytes.
• In volts.
• In hertz.
• In bytes per second.

If a CPU operates at four gigahertz, how many clock cycles does it perform in one second?

• Four million clock cycles.
• Four billion clock cycles.
• Four thousand clock cycles.
• Four hundred million clock cycles.

What is a clock cycle in the context of CPU operation?

• The duration of a CPU's idle state.
• The time taken to execute a single instruction.
• A single electrical pulse in a CPU.
• A measure of CPU temperature.

Which of the following is NOT a factor in determining CPU performance?

• CPU architecture.
• Instructions per cycle.
• The color of the CPU casing.
• Clock speed.

Which of the following statements is true regarding CPU tasks?

• Clock cycles are irrelevant to CPU tasks.
• Some instructions require more cycles depending on the CPU architecture.
• Tasks are completed in a fixed number of clock cycles.
• All CPU tasks require the same number of clock cycles.

What determines the advertised clock speed of a CPU?

• The base clock and the CPU multiplier.
• The number of cores in the CPU.
• The type of motherboard used.
• The CPU's cooling system.

What is overclocking in relation to CPU performance?

• Reducing the CPU's clock speed for efficiency.
• Raising the CPU's clock speed higher than the manufacturer's set speed.
• Changing the CPU's architecture.
• Lowering the CPU's voltage to save power.

What does overvolting refer to in CPU performance?

• Raising the voltage to the CPU to support higher clock speeds.
• Increasing the CPU's clock speed without changing voltage.
• Adjusting the CPU's cooling system.
• Decreasing the voltage to improve efficiency.

What is essential for finding a stable clock speed in a CPU?

• Maximizing the clock speed without regard to temperature.
• Balancing clock speed and voltage to avoid overheating.
• Using the highest possible voltage at all times.
• Setting the clock speed to the manufacturer's recommendation.