The operating system keeps a small table containing information about all open files called __ A. a) file table B. b) directory table C. c) open-file table D. d) system table Correct answer is: C. c) open-file table 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
The information about all files is kept in __ A. a) operating system B. b) separate directory structure C. c) swap space D. d) none of the mentioned Correct answer is: B. b) separate directory structure 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
A. a) operating system B. b) separate directory structure C. c) swap space D. d) none of the mentioned
If the sum of the working – set sizes increases, exceeding the total number of available frames __ A. a) the operating system selects a process to suspend B. b) the system crashes C. c) then the process crashes D. d) the memory overflows Correct answer is: A. a) the operating system selects a process to suspend 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
A. a) the operating system selects a process to suspend B. b) the system crashes C. c) then the process crashes D. d) the memory overflows
The priority of a process will __ if the scheduler assigns it a static priority. A. a) depends on the operating system B. b) change C. c) remain unchanged D. d) none of the mentioned Correct answer is: C. c) remain unchanged 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
A. a) depends on the operating system B. b) change C. c) remain unchanged D. d) none of the mentioned
Which one of the following is a real time operating system? A. a) Windows CE B. b) RTLinux C. c) VxWorks D. d) All of the mentioned Correct answer is: D. d) All of the mentioned 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
For real time operating systems, interrupt latency should be __ A. a) zero B. b) minimal C. c) maximum D. d) dependent on the scheduling Correct answer is: B. b) minimal 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
Hard real time operating system has __ jitter than a soft real time operating system. A. a) equal B. b) more C. c) less D. d) none of the mentioned Correct answer is: C. c) less 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
In real time operating system __ A. a) process scheduling can be done only once B. b) all processes have the same priority C. c) kernel is not required D. d) a task must be serviced by its deadline period Correct answer is: D. d) a task must be serviced by its deadline period 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
A. a) process scheduling can be done only once B. b) all processes have the same priority C. c) kernel is not required D. d) a task must be serviced by its deadline period
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. A. a) Device drivers B. b) I/O systems C. c) Devices D. d) Buses Correct answer is: A. a) Device drivers 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
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. A. a) memory B. b) mapping C. c) page D. d) frame Correct answer is: D. d) frame 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
Using transient code, _ the size of the operating system during program execution. A. a) maintains B. b) changes C. c) increases D. d) decreases Correct answer is: B. b) changes 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
The operating system and the other processes are protected from being modified by an already running process because __ A. a) every address generated by the CPU is being checked against the relocation and limit registers B. b) they have a protection algorithm C. c) they are in different memory spaces D. d) they are in different logical addresses Correct answer is: A. a) every address generated by the CPU is being checked against the relocation and limit registers 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
A. a) every address generated by the CPU is being checked against the relocation and limit registers B. b) they have a protection algorithm C. c) they are in different memory spaces D. d) they are in different logical addresses
The main memory accommodates __ A. a) cpu B. b) user processes C. c) operating system D. d) all of the mentioned Correct answer is: C. c) operating system 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
Swapping _ be done when a process has pending I/O, or has to execute I/O operations only into operating system buffers. A. a) must never B. b) maybe C. c) can D. d) must Correct answer is: A. a) must never 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
A deadlock avoidance algorithm dynamically examines the __ to ensure that a circular wait condition can never exist. A. a) operating system B. b) resources C. c) system storage state D. d) resource allocation state Correct answer is: D. d) resource allocation state 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
For an effective operating system, when to check for deadlock? A. a) every time a resource request is made at fixed time intervals B. b) at fixed time intervals C. c) every time a resource request is made D. d) none of the mentioned Correct answer is: A. a) every time a resource request is made at fixed time intervals 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
A. a) every time a resource request is made at fixed time intervals B. b) at fixed time intervals C. c) every time a resource request is made D. d) none of the mentioned
The FCFS algorithm is particularly troublesome for __ A. a) operating systems B. b) multiprocessor systems C. c) time sharing systems D. d) multiprogramming systems Correct answer is: C. c) time sharing systems 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
A. a) operating systems B. b) multiprocessor systems C. c) time sharing systems D. d) multiprogramming systems
The portion of the process scheduler in an operating system that dispatches processes is concerned with __ A. a) assigning ready processes to waiting queue B. b) assigning running processes to blocked queue C. c) assigning ready processes to CPU D. d) all of the mentioned Correct answer is: C. c) assigning ready processes to CPU 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
A. a) assigning ready processes to waiting queue B. b) assigning running processes to blocked queue C. c) assigning ready processes to CPU D. d) all of the mentioned
Transient operating system code is a code that __ A. a) stays in the memory always B. b) never enters the memory space C. c) comes and goes as needed D. d) is not easily accessible Correct answer is: C. c) comes and goes as needed 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
A. a) stays in the memory always B. b) never enters the memory space C. c) comes and goes as needed D. d) is not easily accessible
When a process is in a “Blocked” state waiting for some I/O service. When the service is completed, it goes to the __ A. a) Terminated state B. b) Suspended state C. c) Running state D. d) Ready state Correct answer is: D. d) Ready state 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
Cascading termination refers to the termination of all child processes if the parent process terminates __ A. a) Normally or abnormally B. b) Abnormally C. c) Normally D. d) None of the mentioned Correct answer is: A. a) Normally or abnormally 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
In a timeshare operating system, when the time slot assigned to a process is completed, the process switches from the current state to? A. a) Suspended state B. b) Terminated state C. c) Ready state D. d) Blocked state Correct answer is: C. c) Ready state 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
In operating system, each process has its own __ A. a) open files B. b) pending alarms, signals, and signal handlers C. c) address space and global variables D. d) all of the mentioned Correct answer is: D. d) all of the mentioned 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar
A. a) open files B. b) pending alarms, signals, and signal handlers C. c) address space and global variables D. d) all of the mentioned
What does OS X has?a) monolithic kernel with modulesb) microkernelc) monolithic kerneld) hybrid kernel… What does OS X has?Read More » Computer Science MCQS Operating System MCQs Leave a Comment | Umar
Which one of the following is not a real time operating system? A. a) RTLinux B. b) Palm OS C. c) QNX D. d) VxWorks Correct answer is: B. b) Palm OS 📖 Read Detailed Explanation → Computer Science MCQS Operating System MCQs Leave a Comment | Umar