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What is ‘register renaming’ used for?
A. Eliminating false data dependencies by dynamically assigning physical registers
B. Optimizing cache memory usage
C. Reducing instruction fetch time
D. Improving memory bandwidth
Answer: Eliminating false data dependencies by dynamically assigning physical registers
What is ‘instruction-level parallelism’ (ILP)?
A. The capability of a CPU to execute multiple instructions simultaneously
B. The ability to parallelize memory access
C. The process of executing instructions in a pipeline
D. The technique of managing multiple threads
Answer: The capability of a CPU to execute multiple instructions simultaneously
What is ‘data forwarding’ in pipelined processors?
A. A technique to pass data directly between pipeline stages to avoid stalls
B. A method to cache data for later use
C. A process to manage instruction dependencies
D. A strategy to handle branch instructions
Answer: A technique to pass data directly between pipeline stages to avoid stalls
What does ‘dynamic frequency scaling’ achieve?
A. Adjusts the CPU's clock speed based on workload to reduce power consumption
B. Increases the system bus speed
C. Optimizes memory access speed
D. Manages cache size dynamically
Answer: Adjusts the CPU's clock speed based on workload to reduce power consumption
What is ‘cache coherence’?
A. A mechanism to ensure that all processors in a multiprocessor system have a consistent view of memory
B. A method to synchronize memory access
C. A technique to increase cache size
D. A process to optimize memory access patterns
Answer: A mechanism to ensure that all processors in a multiprocessor system have a consistent view of memory
What does ‘virtual memory’ allow a system to do?
A. Extend the addressable memory space by using disk storage
B. Increase the physical memory size
C. Optimize CPU performance
D. Improve cache efficiency
Answer: Extend the addressable memory space by using disk storage
What is ‘out-of-order execution’?
A. A technique that allows instructions to be executed as soon as their operands are ready, rather than in the original order
B. A process of reordering instructions to improve cache performance
C. A method to manage instruction pipelines
D. A strategy for optimizing memory access
Answer: A technique that allows instructions to be executed as soon as their operands are ready, rather than in the original order
What is ‘speculative execution’?
A. A technique where the CPU executes instructions before it is known whether they are needed, to improve performance
B. A method to predict future instructions
C. A process to cache frequently used instructions
D. A strategy to execute multiple threads simultaneously
Answer: A technique where the CPU executes instructions before it is known whether they are needed, to improve performance
What is the purpose of ‘superscalar architecture’?
A. To execute multiple instructions simultaneously by using multiple execution units
B. To increase the speed of memory access
C. To manage multiple CPU cores
D. To optimize the instruction fetch process
Answer: To execute multiple instructions simultaneously by using multiple execution units