Question

Valid bit in each cache is associated with __________________.

• A. Each memory byte in cache
• B. Each memory word in cache
• C. One bit with the all memory words
• D. None of the above

Answer 1

The correct option is B Each memory word in cache

Valid bit in each cache is associated with each memory word in cache.

The cache to translate from a cache address to a unique CPU address. A cache hit means that the CPU tried to access an address, and a matching cache block was available in cache.

Data is transferred between memory and cache in blocks of fixed size, called cache lines or cache blocks. When a cache line is copied from memory into the cache, a cache entry is created. When the processor needs to read or write a location in main memory, it first checks for a corresponding entry in the cache.