$1.$ For a direct mapped cache with a $32-$bit address, the following bits of address are used to access the cache.$$

$$

Tag

Index

Offset

$31-10$

$9-5$

$4-0$

$$

Assume this computer is byte$-$addressable. What is the word size? What is the cache block size? How many entries does the cache have? What is the overhead of this cache in terms of data storage? $($Saving tag, and also valid bits are overhead of a cache memory in terms of data storage$)$