CS604 Midterm Online Quiz

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CS604-Midterm

1 / 50

Command-line interpreter is also called __________ in some operating systems.

2 / 50

Each page is a power of -------- bytes long in paging scheme.

3 / 50

An absolute pathname starts with the root directory (/) and a relative pathname starts with your home directory.

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___________ is a piece of code in a cooperating process in which the process may updates shared data (variable, file, database, etc.).

5 / 50

In Unix/ Linux, by default the standard output file is attached to the ___________

6 / 50

The -------------- system call suspends the calling process.

7 / 50

A process is said to be in critical section if it executes code that manipulates shared data

8 / 50

I/O instructions are Privileged Instructions.

9 / 50

In indirect inter process communication, a sender_____mention the name of the recipient.

10 / 50

A system call________

11 / 50

User mode can run the Privileged instructions.

12 / 50

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

13 / 50

In Linux directory structure, there is ___________ root directory.

14 / 50

Physical memory is broken down into fixed-sized blocks, called----------- and Logical memory is divided into blocks of the same size, called -----------

15 / 50

In ________addressing, the recipient is not required to name the sender.

16 / 50

The ________ requires that once a writer is ready, that writer performs its write as soon as possible , if a writer waiting to access the object, no new readers may start reading.

17 / 50

Which of the following is correct definition for wait operation?

18 / 50

In ---------addressing, the recipient is not required to name the sender.

19 / 50

/opt is used for storage of large applications.

20 / 50

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

21 / 50

You can use the ---------command in UNIX to create a directory.

22 / 50

In Layered Approach of OS, the Layer highest Layer is User Interface layer.

23 / 50

When process opens its first file explicitly it will get descriptor number ______

24 / 50

The main characteristic of a Real time system is

25 / 50

_________________ scheduling allows a process to move between queues.

26 / 50

The Purpose of Operating System is to generate Executable Programs and to _______ them.

27 / 50

A condition where a set of blocked processes each holding a resource and waiting to acquire a resource held by another process in the set is termed as ________.

28 / 50

POSIX is a standard developed by ANSI

29 / 50

The basic purpose of ________________is to help the users to utilize the hardware resources for completing different tasks in a simplified manner

30 / 50

Linux uses ___________ directory to store system configuration files.

31 / 50

A major problem with priority scheduling algorithms is ______.

32 / 50

The execution of critical sections must NOT be mutually exclusive

33 / 50

I MB or 1 megabyte is equivalent to----

34 / 50

The performance of Round Robin algorithm does NOT depends heavily on the size of the time quantum.

35 / 50

_____________ is a preemptive scheduling algorithm.

36 / 50

A time sharing system is

37 / 50

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

38 / 50

DOS is single user operating system.

39 / 50

_____________ is the basis of queuing theory which is branch of mathematics used to analyze systems involving queues and servers.

40 / 50

The priority of a process can be changed using ___________ command.

41 / 50

A semaphore that cause Busy-Waiting is termed as .

42 / 50

In Resource Allocation Graph, A _______ Pi →Rj indicates that process Pi may request resource Rj at some time in the future.

43 / 50

In indirect inter process communication, a sender ________ mention the name of the recipient.

44 / 50

Mkfifo() is a _______.

45 / 50

The following is NOT a classical problem of synchronization  

46 / 50

An operating system is a control program that manages the execution of user programs to prevent errors and improper use of a computer.

47 / 50

If your processor does not have two slots empty in Per Process File Descriptor Table, then your _________ system call will fail.

48 / 50

The returned code to the child process after successful fork system call execution is

49 / 50

We can install and run multiple OS by using VMWare.

50 / 50

Operating System provides services such as Managing Primary and Secondary Storage, Processes and Allowing user to manage his/her files and directories.

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The average score is 36%

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