CS604 Midterm MCQs Combined by Masters

1. When a process has undivided access to a shared piece of code than no other process can execute code, this state is called__________.

• Race condition
• Progress

• Mutual exclusion (page 98)

Q2. Critical section is a place where certain shared structure is updated. Its solution required certain precaution: one of them is the access to critical section by one process at a time only. What this condition is termed as?

• Progress
• Entry section

• Mutual exclusion (page 97)

3. Which of the following is not a major advantage of multiprogramming system is

• More than one jobs can be processed at a given time
• CPU utilization can be increases
• Jobs can be completed quickly
• If more process can exist, the rest must wait until the CPU is free and can be rescheduled (page 31)

CS604 OPERATING SYSTEM · GRAND QUIZ SPRING 2021 · MCS FAMILY GROUP TEAM · BY: ARSAL SHANI & AINA MALIK & Family Team

4. We can suspend a foreground process by pressing_______ which sends a STOP/SUSPEND signal to the process.

• Ctrl-w
• Ctrl-x
• Ctrl-y
• Ctrl-z pg#65

5. ________command in LINUX is used to copy file.

• ls
• cp pg#27
• mv
• mkdir

6. System calls provide the interface between a_______ and the Operating System.

• User
• Machine
• Process pg#15
• Kernel

7. In critical section problem ________ requirement illustrates that, “If no process is executing in its critical section and some processes wish to enter their critical sections, then only those processes that are not executing in their remainder section can participate in the decision on which will enter its critical section next, and this selection cannot be postponed indefinitely. ”

• Mutual exclusion
• Progress pg#98
• Slow execution

8. Batch programs are usually _________ programs.

• Interactive

• Non-interactive (page 88 + Google)

• Foreground

9. You can use the mv file1 file2 command to move_________.

• File1 to file 2 (Page 27)

• File 2to file 1
• This command will not work for moving files
• None of the option correct

10. The___________ defines an operating system as a bridge between computer user and hardware for a user’s convenience.

• System-view
• Bottom-up view

• Top-down view ( page 03)

• Layered-view