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GATE 2026 CS1 Q.54: official answer

GATE 2026 · CS1Q.54 · 2 marks · MSQ

Consider a system that has a cache memory unit and a memory management unit (MMU). The address input to the cache memory is a physical address. The MMU has a translation lookaside buffer (TLB). Assume that when a page is evicted from the main memory, the corresponding blocks in the cache are marked as invalid.

For a given memory reference, which of the following sequences of events can NEVER happen?

  1. (A)

    TLB miss, Page table hit, Cache hit

  2. (B)

    TLB hit, Page table miss, Cache hit

  3. (C)

    TLB miss, Page table miss, Cache hit

  4. (D)

    TLB miss, Page table miss, Cache miss

See the question in the paper

Official answer

From the GATE 2026 CS1 paper. Every question of this paper · Download the full paper · All 22 Memory & cache questions, with notes

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