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______________ is a situation in which two computer programs sharing the same resource are effectively preventing each other from accessing the resource, resulting in both programs ceasing to function.

A. Semaphore

B. Deadlock

C. Mutual Exclusion

D. No preemption

Correct Answer :

B. Deadlock


Related Questions

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Which of the following is/are external commands?

A. Edit

B. Label

C. Sys

D. All of above

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The essential difference between an operating system like Linux and one like Windows is that

A. Linux is a proprietary whereas Windows is not

B. Windows can run with an Intel processor, whereas Linux cannot

C. There are multiple versions of Linux, but only one version of Windows

D. Any programmer can modify Linux code which is not permitted with Windows

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Identify the server:
This type of server generally remains in existence indefinitely. It is shared by many clients. Servers of this type are created and installed before the clients use them.

A. Instance-per-call-servers

B. Persistent Servers

C. Non-Persistent Servers

D. Semantic server

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The primary purpose of an operating system is a …

A. To allow people to use the computer

B. To make the most efficient use of computer hardware

C. To make computer easier to use

D. To keep system programmer employed

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Taskbar is used for

A. Navigation program

B. Start a program

C. Switching between program

D. All of above

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When resources have multiple instances ________ is used for deadlock Avoidance.

A. Bankers algorithm

B. Resource Allocation Graph

C. semaphores

D. all of these

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______________ occurs when multiple processes or threads read and write data items so that the final result depends on the order of execution of instructions in the multiple processes.

A. Race condition

B. Mutual exclusion

C. Exception

D. Interrupt

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A process control block contains varies attributes required by _____________ to control a process.

A. RAM

B. virtual memory

C. BIOS

D. Operating System

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Bootstrapping is also known as ______

A. cold-hot boot

B. hot boot

C. hot strap

D. cold boot

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____________approach can place the data directly into the memory or take the data directly from the memory without direct intervention from the processor.

A. DMA

B. Daisy chain arbitration

C. polling

D. none of these

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A _______________in a distributed system is a string of bits or characters that is used to refer to an entity.

A. name

B. attribute

C. identifiers

D. addresses

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______________ are popular way to improve application through parallelism.

A. Processes

B. Threads

C. Context switching

D. none of these

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Which one is true for unconditional disk formatting?

A. Transfer system files after format

B. Do not check/scan surface after format

C. Destroys every byte of data on a disk by overwriting it with with blank spaces

D. All of above

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You can move a window to a different position on your screen by dragging it by its

A. Tail

B. Move handle

C. Status bar

D. Title bar

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Which command is used to display the contents of the text file of DOS?

A. Copy

B. Copy con

C. Dir

D. Type

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The ___ contains commands associated with the My Computer window

A. Start menu

B. Standard menu

C. System menu

D. None of the above

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The two sub systems of user mode layer of windows 2000 are _________ and __________

A. excel, executive

B. environment, integral

C. orbit , kernel

D. Kernel , executive

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An operating system version designed for use with a media center PC is Microsoft Windows XP

A. Media center edition

B. Home edition

C. Tablet PC edition

D. None of above

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Two clocks are said to be synchronized at a particular instance of time if the difference in time values of the two clocks is less than some specified constant. The difference in time values of two clocks is called ___________.

A. Interrupt

B. Clock Frequency

C. Clock Ticks

D. Clock Skew

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In MS-DOS, the interfaces and levels of functionality are _______________

A. not well separated.

B. well separated

C. independent

D. dependent

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When a child dies, it sends a _______________signal to its parent.

A. SIGCHLD

B. EDEADLK

C. WNOHANG

D. SEDECHLD

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______________ selects a process from among the ready processes to execute on the CPU.

A. CPU Scheduler

B. Loader

C. Dispatcher

D. Compiler

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_______________refers to a strategy where whenever a resource is requested, it is only granted if it cannot result in deadlock.

A. Deadlock Prevention

B. Livelock

C. Deadlock avoidance

D. none of these

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4

Underlined text, such as text and folder names is referred to as

A. Hyperlink

B. Menu

C. Source drive

D. None of these

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One of the wonderful things about UNIX is its ___________names.

A. Unlimited path

B. Unlimited directory

C. Limited path

D. Limited file

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Creation of a semaphore set is done using the _______system call.

A. semget()

B. semsget()

C. mknod()

D. sempget()

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In case of modification an unauthorized party not only gains access to but tampers with an asset. This is an attack on ____________________.

A. availability

B. confidentiality

C. integrity

D. authenticity

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______________is a mechanism the prevents two or more processes from accessing a shared resource simultaneously.

A. Livelock

B. Preemption

C. Semaphore

D. either or

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In the case of____________ , changes to an open file are only locally visible.

A. session semantics

B. immutable files

C. atomic transactions

D. None of the above.

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__ is the program run on a computer when the computer boots up

A. System software

B. Operating system

C. System operations

D. None