Top 250+ Solved Operating System Advanced MCQ Questions Answer

From 31 to 45 of 272

Q. Which of the following is an example of a spooled device?

a. A line printer used to print the output of a number of jobs

b. A terminal used to enter input data to a running program

c. A secondary storage device in a virtual memory system

d. A graphic display device

  • a. A line printer used to print the output of a number of jobs

Q. A solution to the Dining Philosophers Problem which avoids deadlock is

a. ensure that all philosophers pick up the left fork before the right fork.

b. ensure that all philosophers pick up the right fork before the left fork.

c. ensure that one particular philosopher picks up the left fork before the right fork, and all other philosophers pick up the right fork before the left fork.

d. none of the above

  • c. ensure that one particular philosopher picks up the left fork before the right fork, and all other philosophers pick up the right fork before the left fork.

Q. Locality of reference implies that the page reference being made by a process

a. will always be to the page used in the previous page reference

b. is likely to be to one of the pages used in the last few page references

c. will always be to one of the pages existing in memory

d. will always lead to a page fault

  • b. is likely to be to one of the pages used in the last few page references

Q. Shared sub-directories and files areexample of

a. cyclic graph directory

b. tree structured direction

c. one level directory

d. none of these

  • a. cyclic graph directory

Q. The lowest level of I/O control consists of

a. device drivers

b. interrupt handlers

c. both A and B above

d. none of the above

  • c. both A and B above

Q. Which type of design problem in file system

a. how the file system should look to the user

b. algorithm and data structure must be created to map the logical file system onto the secondary storage device

c. Both A and B above

d. none of the above

  • c. Both A and B above

Q. Of the following which is the methods for allocating disks

a. Contiguous

b. Linked

c. Indexed

d. All of the above

  • b. Linked

Q. External fragmentation solved by which allocation?

a. contiguous allocation

b. linked allocation

c. index allocation

d. both B and C

  • d. both B and C

Q. Which O/I are best method for allocating?

a. Contiguous

b. Linked

c. Index

d. All of the above

  • b. Linked

Q. Allocate the first hole that is big enough is called

a. first fit

b. best fit

c. worst fit

d. all of the above

  • a. first fit

Q. Allocate the smallest hole that. is big enough is called

a. first fit

b. best fit

c. worst fit

d. all of the above

  • b. best fit

Q. The most efficient data set organization is

a. a sequential file

b. an ISAM file

c. variable depending upon the usage of the data set

d. a partitioned data set

  • c. variable depending upon the usage of the data set

Q. A partitioned data set is most used for

a. storing program data

b. storing ISAM files

c. a program or source library

d. storing backup information

  • c. a program or source library

Q. Fragmentation of the file system

a. can always be prevented

b. occurs only if the file system is used improperly

c. can be temporarily removed by compaction

d. is a characteristic of all file systems

  • c. can be temporarily removed by compaction
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