$3.$ Here, the CPU uses a direct$-$mapped caching method as shown in the figure.

Here cache is organized into $8$ blocks and each block has $4$ words. The CPU reads from

the sequence of memory word locations shown below. Show whether each read is a hit

or a miss in the cache using the cache table.

$6,8,10,20,21,4,11,47,12,6$

$4.$ Here, the CPU uses a $2-$way set associative caching method as shown in the figure.

Here, cache is organized into $4$ blocks; each set has $2$ blocks, $4$ sets total. The CPU reads

from the sequence of memory word locations shown below. Show whether each read is a

hit or a miss in the cache using the cache table.

$6,8,10,20,21,4,11,47,12,$