CS604 Midterm Online Quiz

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CS604-Midterm

1 / 50

If a system is not in a safe state, there can be No deadlocks.

2 / 50

n-process critical section problem can be solved by using

3 / 50

The hardware mechanism that enables a device to notify CPU is called an -------------

4 / 50

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

5 / 50

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

6 / 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.

7 / 50

The execution of critical sections must NOT be mutually exclusive

8 / 50

Shared libraries and kernel modules are stored in directory

9 / 50

Which of the Following is not an Operating System.

10 / 50

We can install and run multiple OS by using VMWare.

11 / 50

__________ scheduler selects the process from the job pool and put them in main memory.

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

13 / 50

___________ is used in real time operating systems.

14 / 50

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

15 / 50

command displays the contents of current working directory.

16 / 50

User mode can run the Privileged instructions.

17 / 50

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

18 / 50

Preventing a condition of ________ to happen, deadlocks can be prevented to happen.  

19 / 50

________________ is an integer variable accessible through wait and signal which are atomic operations.

20 / 50

You can display the contents (names of files and directories) of a directory in UNIX/Linux directory structure with the --------------- command.

21 / 50

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

22 / 50

Kernel is responsible for scheduling the user level threads.

23 / 50

A system call________

24 / 50

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

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This condition is known as ______________.  

26 / 50

The process of holding at least one resource and waiting to acquire additional resources that are currently being held by other processes is known as________.  

27 / 50

The Shortest-Job-First Scheduling algorithm can be

28 / 50

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

29 / 50

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

30 / 50

In deadlock detection and recovery algorithm, a deadlock exists in the system if and only if the wait for graph contains a _____________

31 / 50

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

32 / 50

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

33 / 50

The time it takes for the dispatcher to stop one process and start another running is known as the-----------.

34 / 50

___________ algorithm is used in Deadlock avoidance.

35 / 50

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

36 / 50

I/O instructions are Privileged Instructions.

37 / 50

You can use the ------------- command to display the status of suspended and background processes

38 / 50

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

39 / 50

____ command display the status of a process.

40 / 50

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

41 / 50

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

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

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

44 / 50

POSIX is a standard developed by ANSI

45 / 50

The following is NOT a classical problem of synchronization  

46 / 50

The critical section problem can be solved by the following except

47 / 50

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

48 / 50

The execution of critical sections must NOT be mutually exclusive

49 / 50

Utilities used for system administration (halt, ifconfig, fdisk, etc.) are stored in _____________ directory.

50 / 50

The bottom-up view is that operating system is a resource manager who manages the hardware and software resources in the computer system.

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