Operating System | Helpdice

MCQ Problems / Explanations

The degree of multi-programming is :

Last updated: Thu, 16 Apr

The entry of all the PCBs of the current processes is in :

Last updated: Thu, 16 Apr

The Process Control Block is :

Last updated: Thu, 16 Apr

The state of a process is defined by :

Last updated: Thu, 16 Apr

The number of processes completed per unit time is known as __________.

Last updated: Thu, 16 Apr

Which system call returns the process identifier of a terminated child?

Last updated: Thu, 16 Apr

A process stack does not contain

Last updated: Thu, 16 Apr

A set of processes is deadlock if

Last updated: Thu, 16 Apr

What is the ready state of a process?

Last updated: Thu, 16 Apr

A process can be terminated due to

Last updated: Thu, 16 Apr

The systems which allows only one process execution at a time, are called

Last updated: Thu, 16 Apr

Which one of the following is not a real time operating system?

Last updated: Thu, 16 Apr

. If a process fails, most operating system write the error information to a

Last updated: Thu, 16 Apr

By operating system, the resource management can be done via

Last updated: Thu, 16 Apr

The scheme used in the above question is known as _ or __.

Last updated: Thu, 16 Apr

What is operating system?

Last updated: Thu, 16 Apr

With a shared file

Last updated: Thu, 16 Apr

The larger the block size, the the internal fragmentation.

Last updated: Thu, 16 Apr

Data cannot be written to secondary storage unless written within a

Last updated: Thu, 16 Apr

What is the mounting of file system?

Last updated: Thu, 16 Apr

To avoid deadlock

Last updated: Thu, 16 Apr

Which of the following condition(s) is/are required for a deadlock to be possible?

Last updated: Thu, 16 Apr

A Process Control Block(PCB) does not contain which of the following?

Last updated: Thu, 16 Apr

The backing store is generally a

Last updated: Thu, 16 Apr

From the following, which is not a common file permission?

Last updated: Thu, 16 Apr

Which of the following are forms of malicious attack?

Last updated: Thu, 16 Apr

Which of the following are the two parts of the file name?

Last updated: Thu, 16 Apr

File type can be represented by

Last updated: Thu, 16 Apr

Which one of the following is the deadlock avoidance algorithm?

Last updated: Thu, 16 Apr

A parent process calling system call will be suspended until children processes terminate.

Last updated: Thu, 16 Apr

A parent process calling system call will be suspended until children processes terminate.

Last updated: Thu, 16 Apr

Thrashing the CPU utilization.

Last updated: Thu, 16 Apr

In virtual memory, which is not a page replacement algorithm ?

Last updated: Thu, 16 Apr

In a time-sharing operating system, when the time slot given to a process is completed, the process goes from the r...

Last updated: Thu, 16 Apr

What is operating system?

Last updated: Thu, 16 Apr

The swaps processes in and out of the memory.

Last updated: Thu, 16 Apr

The number of the threads in the pool can be decided on factors such as

Last updated: Thu, 16 Apr

Thread pools help in

Last updated: Thu, 16 Apr

If the thread pool contains no available thread

Last updated: Thu, 16 Apr

What is the idea behind thread pools?

Last updated: Thu, 16 Apr

Each connection arriving at multi threaded servers via network is generally

Last updated: Thu, 16 Apr

Instead of starting a new thread for every task to execute concurrently, the task can be passed to a

Last updated: Thu, 16 Apr

Thread pools are useful when

Last updated: Thu, 16 Apr

In UNIX, the .................... system call is used to send a signal.

Last updated: Thu, 16 Apr

In UNIX, the .................... system call is used to send a signal.

Last updated: Thu, 16 Apr

A process can never be sure that a signal it has sent

Last updated: Thu, 16 Apr

In most cases, if a process is sent a signal while it is executing a system call

Last updated: Thu, 16 Apr

The usual effect of abnormal termination of a program is

Last updated: Thu, 16 Apr

The usefulness of signals as a general inter process communication mechanism is limited because

Last updated: Thu, 16 Apr

In UNIX, the set of masked signals can be set or cleared using the ............... function.

Last updated: Thu, 16 Apr

The ............. maintains pending and blocked bit vectors in the context of each process.

Last updated: Thu, 16 Apr

The ............. maintains pending and blocked bit vectors in the context of each process.

Last updated: Thu, 16 Apr

When a process blocks the receipt of certain signals?

Last updated: Thu, 16 Apr

Signals are identified by

Last updated: Thu, 16 Apr

The three ways in which a process responds to a signal are

Last updated: Thu, 16 Apr

Signals of a given type

Last updated: Thu, 16 Apr

Which of the following is not TRUE?

Last updated: Thu, 16 Apr

Which of the following is not TRUE?

Last updated: Thu, 16 Apr

Signals that occur at the same time, are presented to the process

Last updated: Thu, 16 Apr

If multiple threads are concurrently searching through a database and one thread returns the result then the remain...

Last updated: Thu, 16 Apr

Cancellation point is the point where

Last updated: Thu, 16 Apr

Cancelling a thread asynchronously

Last updated: Thu, 16 Apr

When the target thread periodically checks if it should terminate and terminates itself in an orderly manner, it is...

Last updated: Thu, 16 Apr

When one thread immediately terminates the target thread, it is called

Last updated: Thu, 16 Apr

When a web page is loading, and the user presses a button on the browser to stop loading the page?

Last updated: Thu, 16 Apr

What is Thread cancellation?

Last updated: Thu, 16 Apr

If a process does not call exec after forking

Last updated: Thu, 16 Apr

If exec is called immediately after forking

Last updated: Thu, 16 Apr

If a thread invokes the exec system call

Last updated: Thu, 16 Apr

A fork system call will fail if

Last updated: Thu, 16 Apr

Which of the following calls never returns an error?

Last updated: Thu, 16 Apr

Which of the following system calls transforms executable binary file into a process?

Last updated: Thu, 16 Apr

Which of the following system calls does not return control to the calling point, on termination?

Last updated: Thu, 16 Apr

In the Many to Many model true concurrency cannot be gained because

Last updated: Thu, 16 Apr

When is the Many to One model at an advantage?

Last updated: Thu, 16 Apr

Which of the following is the drawback of the One to One Model?

Last updated: Thu, 16 Apr

The One to One model allows

Last updated: Thu, 16 Apr

In the Many to One model, multiple threads are unable to run in parallel on multiprocessors because of

Last updated: Thu, 16 Apr

In the Many to One model, if a thread makes a blocking system call

Last updated: Thu, 16 Apr

The model in which one user-level thread is mapped to many kernel level threads is called

Last updated: Thu, 16 Apr

The model in which one kernel thread is mapped to many user-level threads is called

Last updated: Thu, 16 Apr

Which of the following is FALSE?

Last updated: Thu, 16 Apr

If a kernel thread performs a blocking system call,

Last updated: Thu, 16 Apr

Because the kernel thread management is done by the Operating System itself

Last updated: Thu, 16 Apr

The kernel is ............. of user threads.

Last updated: Thu, 16 Apr

A process having multiple threads of control implies

Last updated: Thu, 16 Apr

Multithreading on a multi - CPU machine

Last updated: Thu, 16 Apr

Resource sharing helps

Last updated: Thu, 16 Apr

A thread shares its resources(like data section, code section, open files, signals) with

Last updated: Thu, 16 Apr

A thread is also called

Last updated: Thu, 16 Apr

Thread synchronization is required because

Last updated: Thu, 16 Apr

The register context and stacks of a thread are deallocated when the thread?

Last updated: Thu, 16 Apr

Which one of the following is not a valid state of a thread?

Last updated: Thu, 16 Apr

Termination of the process terminates

Last updated: Thu, 16 Apr

The jacketing technique is used to

Last updated: Thu, 16 Apr

When the event for which a thread is blocked occurs?

Last updated: Thu, 16 Apr

The time required to create a new thread in an existing process is

Last updated: Thu, 16 Apr

If one thread opens a file with read privileges then

Last updated: Thu, 16 Apr

A process can be

Last updated: Thu, 16 Apr

Which one of the following is not shared by threads?

Last updated: Thu, 16 Apr

Categories

Related Posts