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  1. SET ASSOCIATIVE MAP
  1. DIRECT MAP
  1.  FULL ASSO MAP
in CO and Architecture retagged by
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2 Comments

What have you tried here?
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@Arjun Sir first time when i solved this question i did mistake that i am not changing the no of main memory block after increasing the block size so i got wrong answer and i got that tag field is changing but i got my mistake thank you sir for your response 🙂

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3 Answers

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Best answer

Answer is Option A and Option B.

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A,B is the answer
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Set Associative : 
Block Size increase => offset field size increase
                                      No of blocks decrease =>No of sets decrease => Set field size decrease
                                      The combined field size (set + offset) will remain constant . So tag field will not change

Block Size decrease => offset field size decrease
                                      No of blocks increase =>No of sets increase => Set field size increase
                                      The combined field size (set + offset) will remain constant . So tag field will not change

Direct Mapped :
Block Size increase => offset field size increase
                                      No of blocks decrease => Index field size decrease
                                      The combined field size (offset + index) will remain constant . So tag field will not change

Block Size decrease => offset field size decrease
                                      No of blocks increase =>Index field size increase
​​​​​​​                                      The combined field size (offset + index) will remain constant . So tag field will not change

Fully Associative :
Block Size Increase => Offset field size increase => Tag size decrease
Block Size decrease => Offset field size decrease => Tag size increase

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