UGC NET CSE | June 2016 | Part 3 | Question: 6

Question

In ___ method, the word is written to the block in both the cache and main memory, in parallel

• A. Write through
• B. Write back
• C. Write protected
• D. Direct mapping

Answer 1

Ans 1

In Write through method, data is written into the cache and the corresponding main memory location at the same time. 

In write back method,  modifications are done only in cache, and are backed up in the main memory only at specified intervals or under certain conditions.