CS604 MCQs Part 1 by Asif and Arshad

_________ command to resume the execution of a suspended job in the foreground

1. fg (Page 68)
2. bg
3. jobs
4. kill

Correct answer: fg (Page 68)

__________ commands in Linux is used to copy file

1. is
2. cp (Page 30)
3. mv
4. mkdir

Correct answer: cp (Page 30)

The process id returned to the child process after successful fork system call execution is _____________.

1. 0

(Page 40)

1. 1
2. 2
3. 3
4. Symmetric
5. Asymmetric

Correct answer: Asymmetric

(Page 47)

1. Both symmetric and asymmetric
2. None of the given options

A solution to the critical section problem must satisfy the following requirements

1. Progress
2. Mutual exclusion
3. Bounded Waiting
4. All of these (Page 101)

Correct answer: All of these (Page 101)

Typically the execlp system call is used after a fork system call.

1. True (Page 39)
2. False

Correct answer: True (Page 39)

You can create a threads by using the pthread_create() call.

1. True (Page 76)
2. False

Correct answer: True (Page 76)

The interval from the time of submission to the time of completion is the ______

1. Turnaround time

(Page 83)

1. Waiting time
2. Response time
3. None of all these

Each process must first request permission to enter its critical section. The section of code implementing this request is called the _____

1. entry section

(Page 100)

1. Critical Section
2. remainder section
3. None of all these

IPC provides a mechanism to allow processes to communicate and to synchronize their actions without sharing the same__________

1. Address space (Page 46)
2. Address Name
3. Address ID
4. None of all these

Correct answer: Address space (Page 46)

Linux is a version of _______ operating system.

1. OS/2
2. Windows
3. None of the above

Current working directory can be accessed using --------- Command.

1. . (dot)
2. # ( hash )
3. / (slash)
4. ~ (tilt)

Correct answer: ~ (tilt)

(Page 25)

Mkfifo() is a _______.

1. Library Call

(Page 58)

1. Command
2. Directory
3. None of Above

____ command gives a snapshot of the current processes.

1. ps

(Page 66)

1. top
2. who
3. ls

Time interval when the I/O Devices are accessed is known as --------.

1. CPU Burst
2. Time Slice
3. None of Above

Correct answer: CPU Burst

The process of switching from one process to another is called ---------------.

1. Context switching

(Page 34)

1. scheduling
2. quantum period
3. latency

__________ directory includes essential system boot files including the kernel image.

1. /bin
2. /boot

Correct answer: /boot

(Page 26)

1. /dev
2. /etc

________ scheduling algorithm is sometimes called shortest remaining time first scheduling algorithm.

1. Non-preemptive SJF
2. Priority Scheduling
3. Preemptive Shortest Job First

Correct answer: Preemptive Shortest Job First

(Page 85)

1. FCFS

A semaphore that cause Busy-Waiting is termed as ___________.

1. Spinlock

(Page 113)

1. Monitor
2. Critical region
3. Critical section

Progress and Bounded Waiting are some of the characteristics to solve the critical section problems.

1. True

(Page 101)

1. False
2. Symmetric
3. Asymmetric

Correct answer: Asymmetric

(Page 47) rep

1. Both symmetric and asymmetric
2. None of the given options

The execution of critical sections must NOT be mutually exclusive

1. True
2. False

Correct answer: False

(Page 100)

A program in execution is called a _______________.

1. Command