CS604 Grand Quiz by Junaid

CS604 GRAND QUIZ

1. The section of code before the critical section is called .

Entry section

2. An operating system is easily portable between varying hardware designs in______structural approach.

Micro kernels

3. The_________approach include the ease of extending the OS.

Q4. Which of the following information is not displayed with top command?

Number of threads in a process

5. Processes or threads often need access to shared data and shared resources.

6. In multi-threaded process thread () take two argument, they are used to take ______ and

New thread ID, process name

7. Cooperating processes never share any data, code, memory or state. 8.

False

Q8. To terminate a process <ctrl-c>is pressed, which signal it actually pass to process for termination?

SIGINT

9. UNIX System V scheduling uses queues, which run algorithm.

Round Robin

10. First entries in Per Process File Descriptor Table are used as soon as the process is created.

Q11. Which part of the computer system helps in managing the file and memory management system?

Operating System

12. Batch programs are usually programs.

Non-interactive

Q13. Is a solution to critical section problem?

Lamppost’s bakery algorithm

Q14. Which scheduling algorithm allocates the CPU first to the process that request the CPU first?

First-come, First-served scheduling

15. In Bakery algorithm, process are prioritized based on highest ticket number among competing processes.

False

16. The solution type where in critical section we use “entry section and “exit section” is called kind of .

Software Solution

Q17. How many modes are supported in operating system?

Q18. Which of the following is used to show the end of file in UNIX?

Ctrl + E

19. Scheduler selects the process from the job pool and put them in main memory.

Long term

20. A parent process calling _____system call will be suspended until children-processes terminate.

Time

21. _______ is used to request the OS by the process to take an I/O or initiating child process.

System call

Q22. Which is not basic computing hardware?

Compact Disc

23. The ______________ defines an operating system as a bridge between computer user and

24. hardware for a user’s convenience.

Top-down view

25. You can use the mv file1 file2 command to move .

File1 to file2

26. are used by shell commands to pass data from one shell pipeline to another, without creating temporary files.

Pipes

27. system call is used to create a child process.

Fork

28. The kernel is a computer program that manages ______ requests from software.

Process

29. The problem with priority scheduling algorithm is .
30. POSIX is a standard developed by .

ISO

31. _______command display the status of a process.

Ps

32. ______________ algorithm is used for solving n-process critical section problem.

Bakery

33. Bounded Buffer is a buffer of______size.

Fixed

34. The wait operation of the semaphore basically works on the basic_______system call. Block ()
35. The priority of a process can be changed using________ command.

Nice

36. In ______addressing, the recipient is not required to name the sender.

Asymmetric

37. The priorities of processes in the________group remain fixed.

Kernel

38. The situation in which no context switching is required in multiprocessor systems is referred to as.

Spin lock

39. After fork() system call is made, parent and child process have their separate copy of . File descriptors