OS(II UNIT)

What is the ready state of a process?

• when process is scheduled to run after some execution

• when process is unable to run until some task has been completed

• when process is using the CPU

• none of the mentioned

Which system call returns the process identifier of a terminated child?

• fork()

• wait()

• exit()

• atexit()

A Process Control Block (PCB) does not contain which of the following?

• heap

• stack

• text

• bootstrap

The state of a process is defined by __________

• the final activity of the process

• the activity just executed by the process

• the activity to next be executed by the process

• the current activity of the process

Which of the following is not the state of a process?

• New

• Old

• Waiting

• Running

The entry of all the PCBs of the current processes is in __________

• Process Register

• Program Counter

• Process Table

• Process Unit

The processes that are

residing in main memory and are ready and waiting to execute are kept on a

list called _____________

• job queue

• ready queue

• execution queue

• process queue

The interval from the time of submission of a process to the time of completion is termed as ____________

• waiting time

• turnaround time

• response time

• throughput

Which scheduling algorithm allocates the CPU first to the process that requests the CPU first?

• first-come, first-served scheduling

• shortest job scheduling

• priority scheduling

• round robin scheduling

In priority scheduling algorithm ____________

• CPU is allocated to the process with highest priority

• CPU is allocated to the process with lowest priority

• Equal priority processes cannot be scheduled

• None of the mentioned