IBPS IT SO-Operating system-Process Control Block

Process Control Block

1) A Process Control Block(PCB) does not contain which of the following :
a) Code
b) Stack
c) Heap
d) Data
e) Program Counter
f) Process State
g) I/O status information
h) bootstrap program

Answer: h
Explanation: None.

2) The number of processes completed per unit time is known as __________.
a) Output
b) Throughput
c) Efficiency
d) Capacity

Answer: b
Explanation: None.

3) The state of a process is defined by :
a) the final activity of the process
b) the activity just executed by the process
c) the activity to next be executed by the process
d) the current activity of the process

Answer: d
Explanation: None.

4) Which of the following is not the state of a process ?
a) New
b) Old
c) Waiting
d) Running
e) Ready
f) Terminated

Answer: b
Explanation: None.

5) The Process Control Block is :
a) Process type variable
b) Data Structure
c) a secondary storage section
d) a Block in memory

Answer: b
Explanation: None.

6) The entry of all the PCBs of the current processes is in :
a) Process Register
b) Program Counter
c) Process Table
d) Process Unit

Answer: c
Explanation: None.

7) The degree of multi-programming is :
a) the number of processes executed per unit time
b) the number of processes in the ready queue
c) the number of processes in the I/O queue
d) the number of processes in memory

Answer: d
Explanation: None.

8) A single thread of control allows the process to perform :
a) only one task at a time
b) multiple tasks at a time
c) All of these

Answer: a
Explanation: None.

9) The objective of multi-programming is to : (choose two)
a) Have some process running at all times
b) Have multiple programs waiting in a queue ready to run
c) To minimize CPU utilization
d) To maximize CPU utilization

Answer: a and d
Explanation: None.