Year 9 GCSE 1.2 Lesson 1 Review Quiz

What is clock speed measured in?

• Hertz (Hz)
• Volts (V)
• Amperes (A)
• Watts (W)

How does increasing clock speed affect CPU performance?

• It allows the CPU to process more instructions per second, enhancing performance.
• It reduces the CPU's power consumption.
• It decreases the CPU's temperature.
• It limits the CPU's multitasking capabilities.

Which of the following is an example of a current CPU clock speed?

• 3.5 GHz
• 500 MHz
• 1.2 kHz
• 100 Hz

What is the role of cache memory in a CPU?

• To store frequently accessed data for quick retrieval.
• To increase the size of the main memory.
• To manage the power supply to the CPU.
• To cool down the CPU during heavy tasks.

How can a larger cache improve CPU performance?

• By reducing the time the CPU spends accessing data from the main memory.
• By increasing the CPU's clock speed.
• By adding more cores to the CPU.
• By decreasing the CPU's voltage requirements.

Which of the following is a real-world CPU and its cache size?

• Intel Core i7-9700K with 12 MB L3 cache
• AMD Ryzen 5 3600 with 2 MB L3 cache
• Intel Pentium 4 with 64 KB L1 cache
• AMD Athlon XP with 512 MB L2 cache

What is a CPU core?

• A single processing unit within the CPU capable of executing instructions.
• The cooling system attached to the CPU.
• The power supply unit for the CPU.
• The external casing of the CPU.

What is the difference between a single-core and a multi-core processor?

• A single-core processor has one processing unit, while a multi-core processor has multiple processing units.
• A single-core processor is used in desktops, while multi-core processors are used in laptops.
• A single-core processor consumes more power than a multi-core processor.
• A single-core processor is faster than a multi-core processor in all tasks.

What is one benefit of multi-core CPUs?

• Improved multitasking capabilities.
• Increased physical size of the CPU.
• Higher power consumption.
• Simplified software development.

What is a potential limitation of multi-core CPUs?

• Not all software is optimized to utilize multiple cores effectively.
• They cannot perform single-threaded tasks.
• They always consume more power than single-core CPUs.
• They are incompatible with modern operating systems.