Deck 1: Operating Systems

Question 1

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

Answer 1

all of the mentioned

Question 2

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

A)system calls
B)api
C)library
D)assembly instructions

Answer 2

system calls

Question 3

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 can not be loaded in running operating system
D)kernel remains in the memory during the entire computer session

Answer 3

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

Question 4

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 5

The scheme used in the above question is known as _______ or ________.

A)sector sparing
B)forwarding
C)backwarding
D)sector utilization

Question 6

By operating system, the resource management can be done via

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

Question 7

. 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 8

Which facility dynamically adds probes to a running system, both in user processes and in the kernel?

A)dtrace
B)dlocate
C)dmap
D)dadd

Question 9

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

A)vxworks
B)windows ce
C)rtlinux
D)palm os

Question 10

The OS X has

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

Question 11

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 12

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 13

In Unix, Which system call creates the new process?

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

Question 14

A process can be terminated due to

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

Question 15

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 16

What is interprocess communication?

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

Question 17

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

Question 18

A process stack does not contain

A)function parameters
B)local variables
C)return addresses
D)pid of child process

Question 19

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

A)wait
B)exit
C)fork
D)get

Question 20

The address of the next instruction to be executed by the current process is provided by the

A)cpu registers
B)program counter
C)process stack
D)pipe

Question 21

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

A)output
B)throughput
C)efficiency
D)capacity

Question 22

The state of a process is defined by :

A)the final activity of the process
B)the activity just executed by the process
C)the activity to next be executed by the process
D)the current activity of the process

Question 23

The Process Control Block is :

A)process type variable
B)data structure
C)a secondary storage section
D)a block in memory

Question 24

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

A)process register
B)program counter
C)process table
D)process unit

Question 25

The degree of multi-programming is :

A)the number of processes executed per unit time
B)the number of processes in the ready queue
C)the number of processes in the i/o queue
D)the number of processes in memory