What is a memory cache-write-through?

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What is a memory cache-write-through?

Memory cache-write-through is a caching technique in which data is written simultaneously to both the cache and the main memory. Whenever a write operation is performed, the data is first written to the cache and then immediately propagated to the main memory. This ensures that the data in the cache and the main memory are always consistent and up to date. Although cache-write-through can result in slower write operations compared to other caching techniques, it guarantees data integrity and reduces the risk of data loss in case of system failures.