Basic Operating System MCQ
Basic Operating System MCQ
321. OS/380 is a
- Single user system
- Multi user system
- Single tasking system
- None of these
322. Thread is
- Dispatch able unit of work
- Can be interrupted
- A and B both true
- A and B both false
323. Multithreading allows
- To run threads concurrently
- To run threads independently
- A is true, B is false
- A and B both true.
324. For multithreading
- Tasks to be performed can be independent
- Task to be performed is essentially serialized.
- Tasks cannot be divided into number of threads.
- None is true
325. The principal function of a process is
- To execute machine instructions residing in main memory.
- To execute assembly instructions residing outside main memory
- A and B both true.
- A and B both false.
326. The trace of the process is
- A set of instructins that execute process
- A listing of sequence of instructions that execute process
- A track of network
- None of these
327. The two state process models have the following states
- Running and Not Running
- Running and Ready
- Ready and Blocked
- New and Ready
328. The process control blocks are referred for
- Process control
- I/O devices
- Memory allocation
- None of these
329. Given three switch processes. when they occur match them
(1) Clock interrupt A-The processor encounters a virtual memory address reference for a world that is not in the main memory.
(2) I/O interrupt B-The operating system determines whether the currently running process has been executed for the maximum allowable time slice.
(3) Memory fault C- The operating system determines the I/O action that occurs.
(1) Clock interrupt A-The processor encounters a virtual memory address reference for a world that is not in the main memory.
(2) I/O interrupt B-The operating system determines whether the currently running process has been executed for the maximum allowable time slice.
(3) Memory fault C- The operating system determines the I/O action that occurs.
- 1-A, 2-B,3-C
- 1-B, 2-C, 3-A
- 1-B, 2-A, 3-C
- 1-C, 2-B, 3-A
330. With trap process control
- Operating system determines the error or exception condition that is atal.
- Operating system interrupted for maximum allowable time.
- Are tables that manage information process
- None of these