Deck 25: Operating System and Memory Management

Question 1

The backing store is generally a___________

A)fast disk
B)disk large enough to accommodate copies of all memory images for all users
C)disk to provide direct access to the memory images
D)all of the mentioned

Answer 1

all of the mentioned

Question 2

Memory management technique in which system stores and retrieves data from secondary storage for use in main

A)fragmentation
B)paging
C)mapping
D)None of the mentioned

Answer 2

paging

Question 3

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

A)Code
B)Stack
C)Bootstrap Program
D)Data

Answer 3

Bootstrap Program

Question 4

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

A)mutual exclusion
B)a process may hold allocated resources while awaiting
C)no resource can be forcibly removed from a process
D)All of the mentioned

Question 5

To avoid deadlock___________

A)there must be a fixed number of resources to
B)resource allocation must be done only
C)all deadlocked processes must be
D)inversion technique can be used

Question 6

What is the mounting of file system?

A)creating of a filesystem
B)deleting a filesystem
C)attaching portion of the file system into a directory
D)removing the portion of the file system into a directory structure

Question 7

Data cannot be written to secondary storage unless written within a___________  

A)file
B)swap space
C)directory
D)text format

Question 8

The larger the block size, the the internal fragmentation.

A)greater
B)lesser
C)same
D)none of the mentioned

Question 9

With a shared file___________  

A)actual file exists
B)there are two copies of the file
C)the changes made by one person are not reflected to the
D)the changes made by one person are reflected to the other

Question 10

What is operating system?

A)collection of programs that manages hardware resources
B)system service provider to the application programs
C)link to interface the hardware and application programs
D)all of the mentioned

Question 11

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

A)System calls
B)API
C)Library
D)Assembly instructions

Question 12

Which one of the following is not true?

A)Kernel is the program that constitutes the central core of the operating system
B)kernel is the first part of operating system to load into memory during booting
C)kernel is made of various modules which cannot be loaded in running operating system
D)kernel remains in the memory during the entire computer session

Question 13

Which one of the following error will be handle by the operating system?

A)Power failure
B)lack of paper in printer
C)connection failure in the network
D)all of the mentioned

Question 14

The main function of the command interpreter is

A)to get and execute the next user-specified command
B)to provide the interface between the API and application program
C)to handle the files in operating system
D)none of the mentioned

Question 15

By operating system, the resource management can be done via

A)time division multiplexing
B)space division multiplexing
C)both time and space division multiplexing
D)none of the mentioned

Question 16

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

A)log file
B)another running process
C)new file
D)none of the mentioned

Question 17

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

A)VxWorks
B)Windows CE
C)RTLinux
D)Palm OS

Question 18

The OS X has ____________

A)monolithic kernel
B)hybrid kernel
C)microkernel
D)monolithic kernel with modules

Question 19

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

A)uniprogramming systems
B)uniprocessing systems
C)unitasking systems
D)none of the mentioned

Question 20

In operating system, each process has its own

A)address space and global variables
B)open files
C)pending alarms, signals and signal handlers
D)all of the mentioned

Question 21

In Unix, Which system call creates the new process?

A)fork
B)create
C)new
D)none of the mentioned

Question 22

A process can be terminated due to

A)normal exit
B)fatal error
C)killed by another process
D)all of the mentioned

Question 23

What is the ready state of a process?

A)when process is scheduled to run after some execution
B)when process is unable to run until some task has been completed
C)when process is using the CPU
D)none of the mentioned

Question 24

What is interprocess communication?

A)Communication within the process
B)communication between two process
C)communications between two threads of same process
D)none of the mentioned

Question 25

A set of processes is deadlock if

A)each process is blocked and will remain so forever
B)each process is terminated
C)all processes are trying to kill each other
D)none of the mentioned