When tables are joined in a query, it is not possible to restrict retrieval by using criteria.

Describe a situation where using layers in a document may be beneficial

What will be an ideal response?

In a certain system, each process typically uses a critical section many times before another process requires it. Explain why Ricart and Agrawala’s multicast-based mutual exclusion algorithm is inefficient for this case, and describe how to improve its performance. Does your adaptation satisfy liveness condition ME2?

What will be an ideal response?