$.$Consider a single$-$level cache with an access time of $2\mathrm{.}5$ ns$,$ a block size of $64$ bytes, and a hit ratio of Main memory uses a block transfer capability that has a first$-$word $(4$ bytes$)$ access time of $50$ ns and an access time of $5$ ns for each word thereafter.$[5+5]1.$ What is the access time when there is a cache miss? Assume that the cache waits until the line has been fetched from main memory and then re$-$executes for a hit. $2.$ Suppose that increasing the block size to $128$ bytes increases the H to $0\mathrm{.}97.$ Does this reduce the average memory access time? Hint: For part a$,$ simply compute the total time taken in case of a cache miss. Do not include the hit ratio. Call it as $.2=1$