Practice Test (Modules 5-10)

Which component within the system unit is primarily responsible for directing and coordinating most of the computer's operations?

• Arithmetic Logic Unit (ALU)
• Control Unit
• System Clock
• Motherboard

Compared to a Human, the Central Processing Unit is the brain while the Control Unit is the ________.

• Operating System
• Nervous System
• Muscular System
• Systematic System

Which of the following types of memory is used for temporary storage and loses data when power is turned off?

• RAM
• ROM
• Flash Memory
• Processor

What differentiates a superscalar processor from a traditional scalar processor?

• The presence of a separate arithmetic logic unit
• Its ability to execute multiple instructions per clock cycle
• Its reliance on a direct power supply
• The inclusion of a heat sink for cooling

Which bus primarily transfers actual data between components?

• Address Bus
• Control Bus
• Expansion Bus
• Data Bus

Your computer frequently shuts down during intensive tasks, and the casing feels unusually hot. Based on what you've learned about processor cooling systems, what is the most effective solution to address this issue?

• Replace the CPU with a multi-core processor.
• Reduce the processor’s clock speed in the BIOS.
• Add an external hard drive for additional storage.
• Check and clean the fans and consider upgrading to a liquid cooling system.

A student wants to upgrade the RAM on their computer. Upon inspecting the system, the student finds DIMM slots. What type of RAM module should the student purchase for compatibility?

• SDRAM
• SIMM-compatible RAM
• DDR-compatible DIMM modules
• Flash memory chips

If a computer's processor operates at 4 GHz, how many clock cycles does it complete per second? Explain why this speed is critical to performance.

• 400,000 clock cycles per second; important for multitasking
• 4 million clock cycles per second; determines storage speed
• 40 billion clock cycles per second; increases graphics performance
• 4 billion clock cycles per second; affects instruction execution speed

You are designing a computer for a data center. How would you optimize bus width and clock speed for efficiency, and why?

• Use a wider bus width (64-bit or more) with a high clock speed (3 GHz or more) for faster data transfer and processing.
• Prioritize increasing clock speed and avoid increasing the bus width for compatibility.
• Reduce clock speed while maintaining a wide bus width to minimize latency.
• Use a narrow bus width and high clock speed to maximize energy efficiency.

The ________ interprets and carries out the basic instructions that operate a computer.

• motherboard
• processor
• transistor
• circuit board