Gate CS-2019 Question Paper With Solutions

Q. 42 Assume that in a certain computer, the virtual addresses are 64 bits long and the physical addresses are 48 bits long. The memory is word addressable. The page size is 8k Band the word size is 4 bytes. The Translation Look-aside Buffer (TLB) in the address translation path has 128 valid entries. At most how many distinct virtual addresses can be translated without any TLB miss?

(A) 16 x 210

(B) 8 x 220

(C) 4 x 220

(D) 256 x 210

Answer: (D)


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