Discuss,with examples,how the

In single-processor systems,the memory needs to be updated when a processor issues updates to ***d values.These updates can be performed immediately or in a lazy manner.In a multiprocessor system,different processors might be caching the same memory location in its local ***s.When updates are made,the other ***d locations need to be invalidated or updated.In distributed systems,consistency of ***d memory values is not an issue.However,consistency problems might arise when a client ***s file data.