Linux Interview Questions and Answers – IPC – 2

1. Command used to check shared memory is
a) ipcs
b) ipcs -m
c) ipcs -s
d) ipcs -q
View Answer

2. Which is Fastest IPC?
a) Message Queue
b) shared memory
c) Socket
d) All of the mentioned
View Answer

3. What is the persistancy level of Shared memory segments?
a) signal
b) process
c) file system
d) kernel
View Answer

4. The structure which keeps the information about shared memory in the kernel is
a) struct ipc_perm
b) struct semid_ds
c) struct shmid_ds
d) struct msgid_ds
View Answer

5. One process requires M resource to complete a job. What should be the minimum number of resources available for N processes so that at least one process can continue to execute without blocking/waiting?
a) M * N
b) M * N – 1
c) M * N + 1
d) M
View Answer

6. Semaphore P( ) operation usually does the following:
a) descrements the semaphore count and the process sleeps if needed
b) increments the semaphore count
c) wakes up a sleeping process
d) none of the mentioned
View Answer

7. Which call to use to set the resource count of semaphore?
a) semget( )
b) semctl( )
c) sem_setcount( )
d) sem_set_count( )
View Answer

8. Race condition can be avoided by using
a) semaphore
b) mutex
c) socket
d) both semaphore & mutex
View Answer

9. A server which is handling one client at a time is called as
a) single server
b) multiserver
c) concurrent server
d) iterative server
View Answer

10. A server which is handling many clients at a time is called as
a) single server
b) multiserver
c) concurrent server
d) iterative server
View Answer

11. A communication end-point is identified by
a) ip address
b) port number
c) both IP address and port number
d) none of the mentioned
View Answer

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]