I will give thumbs up for correct answer..

Just need correct answer no need explain

QUestion:

5Which of the following is not the content of PCB?

2.0

A contents of registers

B user id

C process state

D program and data

8In the indirect communication mode, the two communication primitives usually provided by the system are

2.0 ()

A send(receiver, message), receive(sender, message)

B send(sender, message), receive(receiver, message)

C send(mailbox, message), receive(mailbox, message)

D send(mailbox, message), receive(receiver, message)

10Which of the following approaches can prevent Hold and Wait?

2.0

A processes should request all the needed resources at a time

B check the state of resource allocation using the banker's algorithm before granting a resource request

C abort all the processes that are involved in the deadlock

D processes should request all the needed resources in order

13On which transition, the long-term scheduling is performed.

2.0

A New->Ready

B Ready->Runnning

C Running->Exit

D Ready/Suspend->Ready

20In which technique for performing I/O, the CPU has to busy wait for the I/O operation to be completed

2.0

A Direct memory access (DMA)

B Interrupt-driven I/O

C Programmed I/O

D None of the above