engineering computer science MCQ #217

In a cache memory, what is the purpose of the valid bit?

engineering computer science MCQ #217

  1. Question 1

    Q1. In a cache memory, what is the purpose of the valid bit?

    • A) To indicate whether the cache block is valid or not
    • B) To store the cache block data
    • C) To store the cache block address
    • D) To store the cache hit ratio

    Answer: To indicate whether the cache block is valid or not

    Explanation: The valid bit indicates whether the cache block contains valid data or not, allowing the CPU to determine whether to use the cache block or not.