Consider a memory system with the following characteristics:

$64-$bit virtual address

$2-$way set associative TLB

$256$ total TLB entries

$2KB$ page size

$42-$bit physical address

$4-$way set associative cache

$512KB$ cache

$64-$byte cache line $($block$)$

a$)$ Determine the size $($in bits$)$ of each of the labeled fields below:

Virtual Address

$\backslash$table$[[$U$3,$B$,C$