1. Types of Threads
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User level Threads
Kernel Level Threads
Both of above
2. Size of the ..................memory mainly depends on the size of the address bus.
-
main
virtual
secondary
3. Process can be anyone the following
-
Process Being Created
Running
Waited, Ready
4. The architecture that uses a tighter coupling between the compiler and the processor.
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epic
multi-core
risc
5. All the time a computer is switched on; its operating system software has to stay in
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Main storage
Primary storage
Floppy disk
6. The number of clock cycles per second is referred as
-
clock speed
clock frequency
clock rate
7. The approach in which one thread immediately terminates the target thread is known as ___________ cancellation
-
Deferred
Asynchronous
Synchronous
8. The operation that does not involves clock cycles is
-
installation of a device
execute
fetch
9. The target thread periodically checks whether it should terminate, allowing it an opportunity to terminate itself in an orderly fashion is ___________ cancellation
-
Deferred
Random
Synchronous
10. A collection of instructions (or operations) that performs a single logical function is called a
-
Job
Events
Transaction
11. The total transfer time is ________ to the amount of memory swapped
-
directly proportional
indirectly proportional
equal
12. A set of processes is deadlock if
-
each process is blocked and will remain so forever
each process is terminated
all processes are trying to kill each other
13. In a multi-programming environment :
-
the processor executes more than one process at a time
the programs are developed by more than one person
more than one process resides in the memory
14. Which process can affect of be affected by other processes executing in the system?
-
cooperating process
child process
parent process
15. Which of the following software is used to simplify using of system software?
-
Time sharing
Multi-tasking
Operating environment
16. Which of the following state transitions is not possible ?
-
blocked to running
blocked to ready
17.Two basic types of operating systems are
-
Batch and interactive
Sequential and real time
Batch and time share
18. All of the following are TRUE regarding virtual memory EXCEPT
-
Any amount of RAM can be allocated to virtual memory
The setting for the amount of hard disk drive space to allocate virtual memory can be manually change
This temporary storage is called the swap file or page file
19. To avoid the delay due to manual operation ___ was introduced.
-
Assistant
Efficient
Job sequencing
20. The Banker’s algorithm is used
-
to rectify deadlock
to detect deadlock
to prevent deadlock
21. A set of extended instructions providing an interface between the Operating System and the user programs, is called a ____
-
Machine call
System call
Instruction call
22. What is the method of handling deadlocks?
-
Use a protocol to ensure that the system will never enter a deadlock state.
Allow the system to enter the deadlock state and then recover.
Pretend that deadlocks never occur in the system
23. Which one is an example of race condition
-
Simple Switch
Light Switch
Smart Switch
24. Whenever the CPU scheduler decides to execute a process, it calls the
-
Dispatcher
Scheduler
Performer
25. ________ is solved by Dijkstra’s banking algorithm
-
Deadlock recurrence
Deadlock avoidance
Deadlock exclusion
26. When the process issues an I/O request :
-
It is placed in an I/O queue
It is placed in a waiting queue
It is placed in the ready queue
27. The address of the next instruction to be executed by the current process is provided by the
-
CPU registers
program counter
process stack
28. Where does the swap space residable?
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RAM
Disk
ROM
29. In ..................... mapping, the data can be mapped anywhere in the Cache Memory.
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associative
direct
set associative
30. The target thread periodically checks whether it should terminate, allowing it an opportunity to terminate itself in an orderly fashion is ___________ cancellation
-
Deferred
Random
Synchronous
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