operating system set 2 Detailed Explanation And More Example

Question : 1

In thread scheduling, load sharing is referred to

a) Simultaneous scheduling of threads that make up a single process.

b) Implicit scheduling defined by the assignment of threads to processors.

c) A global queue of ready thread is maintained and each processor, when idle, selects a thread from queue.

d) None of these.

Question : 2

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

Question : 3

The mail box and ports are examples of

a) Indirect process communication

b) Direct process communication.

c) Both A and B true

d) None is true

Question : 4

The principle of locality states

a) The program and data references within a process tend to cluster.

b) The program and data references within a process do not tend to cluster.

c) A process actually referred in virtual memory.

d) None of these.

Question : 5

Instruction processing consists of

a) Fetch cycle only

b) Execution cycle only

c) Fetch and Execution cycle both

d) None of these.

Question : 6

The OS/2 is the operating system that support

a) Single thread per process

b) Multiple thread per process

c) Single process

d) None of these.