Q1) Consider the following snapshot of a system: Answer the following questions using the banker's algorithm: a. What is the content of the matrix Need? b. Is the system in a safe state? c. If a request from thread P1 arrives for (0,4,2,0), can the request be granted immediately? Q2)1- When is an algorithm used 1-Dijkstra algorithm 2-Peterson algorithm 2- TestAndSet instruction is executed automatically (T/F). 3- The signal operation of the semaphore basically works on the basic system call