7. Suppose a computer using set associative cache has 216 words of main memory and a cache of 32 blocks, and each cache block contains 8 words. a) If this cache is 2-way set associative, what is the format of a memory address as seen by the cache, that is, what are the sizes of the tag, set, and word fields? b) If this cache is 4-way set associative, what is the format of a memory address as seen by the cache