Question 1
Buffer cache is used for?
Select one:
a. To avoid frequent access of disc
b. To improve system Throught
c. To improve system responce time
d. All the above
The correct answer is: All the above
Question 2
Design issues of AOS?
Select one:
a. Transparency
b. Reliability
c. All of the above
d. Flexibility
The correct answer is: All of the above
Question 3
Lamport’s clocks keep what among distributed systems?
Select one:
a. Physical clock
b. Both
c. Logical clock
d. None
The correct answer is: Logical clock
Question 4
The hash function used in hash queue is?
Select one:
a. blocknumber mod 16
b. blocknumber mod 4
c. blocknumber mod 8
d. blocknumber mod 32
The correct answer is: blocknumber mod 4
Question 5
The number of ports in Mach Process are?
Select one:
a. 6
b. 4
c. 5
d. 3
Question 6
What are the functions of File management?
Select one:
a. Mapping Files onto secondary storage
b. All of the above
c. It offers the facility of directory creation and deletion
d. With the help of a file management we can create and delete a file
The correct answer is: All of the above
Question 7
What are the services provided by operating system?
Select one:
a. All of the above
b. File system manipulation
c. I/O operation
d. Program execution
The correct answer is: All of the above
Question 8
What is a classical problem of synchronization?
Select one:
a. Dining-Philosophers Problem
b. All the above
c. Bounded-Buffer Problem
d. Readers and Writers Problem
The correct answer is: All the above
Question 9
What is a program that acts as an intermediary between a user of a computer and hardware?
Select one:
a. System Manager
b. Source code
c. Application program
d. Operating system
The correct answer is: Operating system
Question 10
When a LOOKUP request message sent?
Select one:
a. When the file is not found
b. When the file is opened for the last time
c. When the file is closed
d. When the file is opened for the first time
The correct answer is: When the file is opened for the first time