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Which component of the CPU handles the interpretation and execution of instructions?
A. Control Unit
B. Arithmetic Logic Unit
C. Register File
D. Cache Memory
Answer: Control Unit
What does ‘DMA’ stand for and what is its purpose?
A. Direct Memory Access; allows peripherals to access memory directly without CPU intervention
B. Dynamic Memory Allocation; manages dynamic memory allocation
C. Distributed Memory Architecture; handles memory distribution in networked systems
D. Digital Memory Access; enhances memory data retrieval speed
Answer: Direct Memory Access; allows peripherals to access memory directly without CPU intervention
What is the ‘von Neumann architecture’ primarily characterized by?
A. A single memory space for both instructions and data
B. Separate memory spaces for instructions and data
C. Use of multiple processors for parallel execution
D. Memory and processing units working independently
Answer: A single memory space for both instructions and data
What does ‘context switching’ refer to in operating systems?
A. The process of saving and restoring the state of a CPU to switch between processes
B. The act of changing user interface settings
C. The procedure of swapping data between cache and main memory
D. The transition between different modes of execution
Answer: The process of saving and restoring the state of a CPU to switch between processes
Which bus type is used for high-speed data transfer between the CPU and other components?
A. Front-Side Bus (FSB)
B. Peripheral Component Interconnect (PCI)
C. Serial ATA (SATA)
D. Universal Serial Bus (USB)
Answer: Front-Side Bus (FSB)
Which type of memory is characterized by non-volatility and high-speed access?
A. Flash memory
B. RAM
C. Cache memory
D. Virtual memory
Answer: Flash memory
What is ‘speculative execution’ used for in CPUs?
A. To improve performance by guessing the likely path of instructions and executing them in advance
B. To save power by executing only a subset of instructions
C. To ensure all instructions are executed in sequence
D. To reduce the size of the instruction set
Answer: To improve performance by guessing the likely path of instructions and executing them in advance
What is the purpose of ‘out-of-order execution’ in modern CPUs?
A. To increase instruction throughput by executing instructions in a non-sequential order
B. To improve memory access speed
C. To ensure instructions are executed in the order they appear
D. To reduce power consumption
Answer: To increase instruction throughput by executing instructions in a non-sequential order
Which of the following describes the ‘cache coherence problem’ in multi-core systems?
A. Inconsistency of data between caches of different cores
B. Incompatibility between different types of cache memory
C. Error in cache hit rates
D. Conflict between cache and main memory
Answer: Inconsistency of data between caches of different cores