Which of the following best describes level 3 cache A A smal

Which of the following best describes level 3 cache?

A. A small amount of memory integrated in the processor for performance purposes

B. A small amount of memory on the motherboard for performance purposes

C. A large block of memory in system memory for performance purposes

D. A large block of memory on the motherboard for performance purposes

Solution

Answer :-

D. A large block of memory on the motherboard for performance purposes.

Explanation :-

The basic purpose of cache memory is to store program instructions that are frequently re-referenced by software during operation. Fast access to these instructions increases the overall speed of the software program.

Level 1 :-

cache is extremely fast but relatively small, and is usually embedded in the processor chip (CPU).

Level 2 :-

cache is often more capacious than L1; it may be located on the CPU or on a separate chip or coprocessor with a high-speed alternative system bus interconnecting the cache to the CPU, so as not to be slowed by traffic on the main system bus.

Level 3:-

cache is typically specialized memory that works to improve the performance of L1 and L2. It can be significantly slower than L1 or L2, but is usually double the speed of RAM. In the case of multicore processors, each core may have its own dedicated L1 and L2 cache, but share a common L3 cache. When an instruction is referenced in the L3 cache, it is typically elevated to a higher tier cache.