CS604 Midterm Online Quiz

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CS604-Midterm

1 / 50

The _______ are used for communication between related or unrelated processes on the same system or unrelated processes on different systems.

2 / 50

A pathname is the list of directories separated by _________.

3 / 50

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

4 / 50

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

5 / 50

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

6 / 50

Which of the following is correct definition for wait operation?

7 / 50

------------ register contains the size of the process

8 / 50

__________ displays information about the top processes.

9 / 50

Which register holds the smallest legal physical memory address for a process?

10 / 50

The Home Directory for superuser in Linux and Unix is

11 / 50

_______ is also called Swapper.

12 / 50

rm and [r]mkdir commands are used to _____________ directory.

13 / 50

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

14 / 50

_____________ determines How to do something.

15 / 50

A Process that has finished working, as well as its parent process has also finished its execution. In this state the process A will be called as _________ process.

16 / 50

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

17 / 50

Operating system enables the user to use the Hardware Resources.

18 / 50

Swapper is also termed as Short term scheduler.

19 / 50

The bottom layer in the layered approach of Operating System is-----------

20 / 50

The creating process is called a--------------- process while the new processes are called the -------------- of that process

21 / 50

The following requirement for solving critical section problem is known as ______. “There exists a bound on the number of times that other processes are allowed to enter their critical sections after a process has made a request to enter its critical section and before that request is granted.”

22 / 50

I/O instructions are Privileged Instructions.

23 / 50

The execution of critical sections must NOT be mutually exclusive

24 / 50

The main characteristic of a Real time system is

25 / 50

A major problem with priority scheduling algorithms is ______.

26 / 50

User Goal of OS is that It easy to use, reliable, safe and fast.

27 / 50

The 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

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

29 / 50

A time sharing system is

30 / 50

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

31 / 50

The critical section problem can be solved by the following except

32 / 50

Mach, MacOS X Server, QNX, OS/2 and Windows NT are examples of OS Based on ______.

33 / 50

The Operating system is a layer of software between _________ and ___________.

34 / 50

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

35 / 50

In Layered approach of OS, Lowest Layer is known as ________.

36 / 50

The address generated by the CPU, after any indexing or other addressing-mode arithmetic, is called a --------address, and the address it gets translated to by the MMU is called a ---------address.

37 / 50

All threads within a process share the ________ address space.

38 / 50

POSIX is a standard developed by ANSI

39 / 50

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

40 / 50

The Top-down view is that it is a program that acts as an intermediary between a user of a computer and the computer hardware, and makes the computer system convenient to use.

41 / 50

The number of processes completed per unit time is called ___________.

42 / 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.

43 / 50

Kernel is responsible for scheduling the user level threads.

44 / 50

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

45 / 50

Banker‟s algorithm is used for ________________

46 / 50

If the fork system call fails, it returns

47 / 50

You can use the rm file1 command to __________ file1

48 / 50

_____________ is a preemptive scheduling algorithm.

49 / 50

Batch programs are usually _________ programs.

50 / 50

A Process „A‟ that has finished working but its parent process has also finished its execution. In this state the process „A‟ will be called as _____ process.

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The average score is 36%

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