What SQL feature enables you to undo a series of changes to the data?

What is a codeword, and how is it used in forward error correction?

What will be an ideal response?

Jones is running a collection of processes p1 p2 pN . Each process pi contains a variable vi . She wishes to determine whether all the variables v1 v2 vN course of the execution.

(i) Jones’ processes run in a synchronous system. She uses a monitor process to determine whether the variables were ever equal. When should the application processes communicate with the monitor process, and what should their messages contain? (ii) Explain the statement possibly ( v1= v2 = =vN ). How can Jones determine whether this statement is true of her execution?