Correct answer is 384
Given
LA = 40 bit = LAS = 240
Page size = 16KB
Page table Entry size (e) = 48 bits(or)6 bytes
Page table size = ?
Size of the page table = n x e
∴ No. of pages (n) = LAS/PS = 240/214 = 226 = 64M
∴ Page table size = 64 x 6B = 384MB