Computer/Operating System MCQ Set 1 Sample Test,Sample questions

Question:
 A deadlock avoidance algorithm dynamically examines the __________ to ensure that a circular wait condition can never exist.

1.operating system

2.resources

3.system storage state

4.resource allocation state

Posted Date:-2022-03-21 04:43:38


Question:
 If a process fails, most operating system write the error information to a ______

1.new file

2.another running process

3. log file

4.None of the mentioned

Posted Date:-2022-03-21 04:27:16


Question:
 In Operating Systems, which of the following is/are CPU scheduling algorithms?

1.Priority

2.Round Robin

3.Shortest Job First

4.All of the Mentioned

Posted Date:-2022-03-21 04:14:12


Question:
 In real time operating system _______

1.process scheduling can be done only once

2.all processes have the same priority

3.kernel is not required

4.a task must be serviced by its deadline period

Posted Date:-2022-03-21 04:52:11


Question:
 In Unix, which system call creates the new process?

1. create

2.fork

3.new

4.None of the mentioned

Posted Date:-2022-03-22 05:48:08


Question:
 To obtain better memory utilization, dynamic loading is used. With dynamic loading, a routine is not loaded until it is called. For implementing dynamic loading _____

1.special support from operating system is essential

2. special support from hardware is required

3. user programs can implement dynamic loading without any special support from hardware or operating system

4.special support from both hardware and operating system is essential

Posted Date:-2022-03-21 04:47:43


Question:
 To recover from failures in the network operations _____________ information may be maintained.

1.operating system

2.ip address

3.stateless

4.state

Posted Date:-2022-03-21 04:58:09


Question:
 What are the characteristics of Host based IDS?

1.Logs are analysed to detect tails of intrusion

2.The host operating system logs in the audit information

3.Logs includes logins, file opens, and program executions

4.All of the Mentioned

Posted Date:-2022-03-21 04:54:37


Question:
 What are the types of distributed operating systems?

1.Zone based Operating system

2. Level based Operating system

3.Network Operating system

4.All of the Mentioned

Posted Date:-2022-03-21 05:02:10


Question:
 What does OS X has?

1.monolithic kernel with modules

2.microkernel

3.monolithic kernel

4.hybrid kernel

Posted Date:-2022-03-21 04:39:47


Question:
 What is the main function of the command interpreter?

1.to provide the interface between the API and application program

2.to handle the files in the operating system

3. to get and execute the next user-specified command

4. none of the mentioned

Posted Date:-2022-03-21 04:13:42


Question:
 Which one of the following is a real time operating system?

1.Windows CE

2.RTLinux

3.VxWorks

4. All of the mentioned

Posted Date:-2022-03-21 04:53:30


Question:
Cascading termination refers to the termination of all child processes if the parent process terminates ______

1.Normally or abnormally

2.Abnormally

3.Normally

4.None of the mentioned

Posted Date:-2022-03-21 04:41:02


Question:
CPU scheduling is the basis of _____

1.multiprogramming operating systems

2.larger memory sized systems

3.multiprocessor systems

4. none of the mentioned

Posted Date:-2022-03-21 04:17:10


Question:
For an effective operating system, when to check for deadlock?

1. every time a resource request is made at fixed time intervals

2.at fixed time intervals

3.every time a resource request is made

4.None of the mentioned

Posted Date:-2022-03-21 04:43:12


Question:
For real time operating systems, interrupt latency should be _______

1.zero

2.minimal

3.maximum

4.dependent on the scheduling

Posted Date:-2022-03-21 04:53:03


Question:
Hard real time operating system has ______________ jitter than a soft real time operating system.

1. equal

2.more

3.less

4.None of the mentioned

Posted Date:-2022-03-21 04:52:35


Question:
If the sum of the working – set sizes increases, exceeding the total number of available frames _____

1. the operating system selects a process to suspend

2.the system crashes

3. then the process crashes

4. the memory overflows

Posted Date:-2022-03-21 04:55:48


Question:
In a timeshare operating system, when the time slot assigned to a process is completed, the process switches from the current state to?

1.Suspended state

2.Terminated state

3. Ready state

4.Blocked state

Posted Date:-2022-03-21 04:40:36


Question:
In operating system, each process has its own _____

1.open files

2. pending alarms, signals, and signal handlers

3.address space and global variables

4.All of the Mentioned

Posted Date:-2022-03-21 04:40:12


Question:
In SCSI disks used in high end PCs, the controller maintains a list of _________ on the disk. The disk is initialized during ________ formatting which sets aside spare sectors not visible to the operating system.

1.destroyed blocks, partitioning

2. bad blocks, low level formatting

3.destroyed blocks, high level formatting

4.None of the mentioned

Posted Date:-2022-03-21 05:00:44


Question:
Network operating system runs on ______

1.every system in the network

2. server

3.both server and every system in the network

4.None of the mentioned

Posted Date:-2022-03-21 05:01:46


Question:
On systems where there are multiple operating system, the decision to load a particular one is done by ______

1.process control block

2. file control block

3. boot loader

4.bootstrap

Posted Date:-2022-03-21 04:58:39


Question:
Swapping _______ be done when a process has pending I/O, or has to execute I/O operations only into operating system buffers.

1.must never

2. maybe

3. can

4. must

Posted Date:-2022-03-21 04:44:24


Question:
The FCFS algorithm is particularly troublesome for ______

1. operating systems

2. multiprocessor systems

3. time sharing systems

4.multiprogramming systems

Posted Date:-2022-03-21 04:42:49


Question:
The information about all files is kept in ______

1. operating system

2. separate directory structure

3. swap space

4. none of the mentioned

Posted Date:-2022-03-21 04:56:15


Question:
The main memory accommodates _______

1. cpu

2.user processes

3.operating system

4.All of the Mentioned

Posted Date:-2022-03-21 04:45:13


Question:
The operating system and the other processes are protected from being modified by an already running process because ______

1. every address generated by the CPU is being checked against the relocation and limit registers

2.they have a protection algorithm

3.they are in different memory spaces

4.they are in different logical addresses

Posted Date:-2022-03-21 04:46:21


Question:
The operating system is responsible for?

1.bad-block recovery

2.booting from disk

3. disk initialization

4.All of the Mentioned

Posted Date:-2022-03-21 04:45:53


Question:
The operating system keeps a small table containing information about all open files called ______

1.file table

2.directory table

3.open-file table

4. system table

Posted Date:-2022-03-21 04:56:45


Question:
The operating system maintains a ______ table that keeps track of how many frames have been allocated, how many are there, and how many are available.

1.memory

2.mapping

3.page

4.frame

Posted Date:-2022-03-21 04:47:17


Question:
The operating system _______ the links when traversing directory trees, to preserve the acyclic structure of the system.

1.deletes

2.considers

3.ignores

4.None of the mentioned

Posted Date:-2022-03-21 04:57:44


Question:
The portion of the process scheduler in an operating system that dispatches processes is concerned with _____

1. assigning ready processes to waiting queue

2. assigning running processes to blocked queue

3. assigning ready processes to CPU

4.All of the Mentioned

Posted Date:-2022-03-21 04:42:22


Question:
The priority of a process will ______________ if the scheduler assigns it a static priority.

1.depends on the operating system

2. change

3.remain unchanged

4.None of the mentioned

Posted Date:-2022-03-21 04:54:07


Question:
The two steps the operating system takes to use a disk to hold its files are _______ and ________

1.caching & logical formatting

2.logical formatting & swap space creation

3. swap space creation & caching

4.partitioning & logical formatting

Posted Date:-2022-03-21 04:59:41


Question:
The _______ program initializes all aspects of the system, from CPU registers to device controllers and the contents of main memory, and then starts the operating system.

1.bootstrap

2.main

3.bootloader

4.rom

Posted Date:-2022-03-21 05:00:13


Question:
The _________ presents a uniform device-access interface to the I/O subsystem, much as system calls provide a standard interface between the application and the operating system.

1. Device drivers

2.I/O systems

3.Devices

4.Buses

Posted Date:-2022-03-21 04:51:43


Question:
To access the services of the operating system, the interface is provided by the _____

1. Library

2.System calls

3.Assembly instructions

4. API

Posted Date:-2022-03-21 04:16:21


Question:
Transient operating system code is a code that ________

1.stays in the memory always

2.never enters the memory space

3.comes and goes as needed

4.is not easily accessible

Posted Date:-2022-03-21 04:41:57


Question:
Using transient code, _______ the size of the operating system during program execution.

1.maintains

2.changes

3.increases

4.Decreases the speed of a chemical reaction

Posted Date:-2022-03-21 04:46:54


Question:
What are the characteristics of stack based IDS?

1.It is programmed to interpret a certain series of packets

2.It models the normal usage of the network as a noise characterization

3. They are integrated closely with the TCP/IP stack and watch packets

4.The host operating system logs in the audit information

Posted Date:-2022-03-21 04:55:11


Question:
What is an operating system?

1. interface between the hardware and application programs

2.collection of programs that manages hardware resources

3.system service provider to the application programs

4.All of the mentioned

Posted Date:-2022-03-21 04:12:42


Question:
What will happen in the single level directory?

1.All files are contained in the same directory

2.All files are contained in different directories all at the same level

3. Depends on the operating system

4.None of the mentioned

Posted Date:-2022-03-21 04:57:14


Question:
When a process is in a “Blocked” state waiting for some I/O service. When the service is completed, it goes to the ______

1.Terminated state

2.Suspended state

3.Running state

4.Ready state

Posted Date:-2022-03-21 04:41:31


Question:
Whenever a process needs I/O to or from a disk it issues a ______

1.system call to the operating system

2.a special procedure

3.system call to the CPU

4.All of the Mentioned

Posted Date:-2022-03-21 04:59:10


Question:
Where is the operating system placed in the memory?

1.either low or high memory (depending on the location of interrupt vector)

2.in the low memory

3. in the high memory

4. none of the mentioned

Posted Date:-2022-03-21 04:26:50


Question:
Which one of the following errors will be handle by the operating system?

1.lack of paper in printer

2.connection failure in the network

3.power failure

4.All of the Mentioned

Posted Date:-2022-03-21 04:26:19


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

1. RTLinux

2.Palm OS

3.QNX

4.VxWorks

Posted Date:-2022-03-21 04:39:22


Question:
Which one of the following is not true?

1.kernel remains in the memory during the entire computer session

2. kernel is made of various modules which can not be loaded in running operating system

3. kernel is the first part of the operating system to load into memory during booting

4.kernel is the program that constitutes the central core of the operating system

Posted Date:-2022-03-21 04:25:49


Question:
Which principle states that programs, users, and even the systems be given just enough privileges to perform their task?

1.principle of least privilege

2.principle of process scheduling

3.principle of operating system

4.None of the mentioned

Posted Date:-2022-03-21 05:01:18


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