1. Remote computing services involve the use of timesharing and
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Multi processing
Interactive processing
Batch processing
2. Operating System of PC consists of two parts
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BIOS and RAM
OS and RAM
ROM and DOS
3. What is a long-term scheduler?
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it selects processes which have to be brought into the ready queue
it selects processes which have to be executed next and allocates cpu
it selects processes which heave to remove from memory by swapping
4. SPOOL Stands for
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Simultaneous Peripheral Operation on Line
Simple Peripheral Operation on Line
Single Process Operation on Line
5. If all processes I/O bound, the ready queue will almost always be ................. and the Short term Scheduler will have a to do.
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full, little
full, lot
empty, little
6. CPU switching from one process to another requires saving the state of the current process and loading the latest state of the next process. This is known as:
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Program Switch
Context Switch
Process Switch
7. What hole will allocates in “Worst-Fit” algorithm of memory management?
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It allocates the smaller hole than required memory hole
It allocates the smallest hole from the available memory holes
It allocates the largest hole from the available memory holes
8. What is a medium-term scheduler?
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it selects which process has to be brought into the ready queue
it selects which process has to be executed next and allocates cpu
it selects which process to remove from memory by swapping
9. What is a short-term scheduler?
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it selects which process has to be brought into the ready queue
it selects which process has to be executed next and allocates cpu
it selects which process to remove from memory by swapping
10.The primary distinction between the short term scheduler and the long term scheduler is
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the length of their queues
the type of processes they schedule
the frequency of their execution
11. Which one is the default word processor for Microsoft Windows?
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MS Word
WordPad
Ms Paint
12. In a multiprogramming environment
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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
13. The context of a process in the PCB of a process does not contain
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the value of the cpu registers
the process state
memory-management information
14. Computer Software can be categorized as
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Application Software
System Software
Both of the above
15. Which of the following need not necessarily be saved on a context switch between processes?
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general purpose registers
translation lookaside buffer
program counter
16. Winchester disks are a type of
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optical disks
magnetic disks
compact disks
17. HLDA stands for
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high level data
high level data acknowledgment
hold acknowledgement
18. Mutual exclusion can be provided by the
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mutex locks
binary semaphores
both mutex locks and binary semaphores
19. When high priority task is indirectly preempted by medium priority task effectively inverting the relative priority of the two tasks, the scenario is called
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priority inversion
priority removal
priority exchange
20. Word length of a personal computer
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64bits
16 bits
8 bits
21. A swapper manipulates..................whereas the pager is concerned with individual of a process.
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the entire process, parts
all the pages of a process, segments
the entire process, pages
22. Process synchronization can be done on
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hardware level
software level
both hardware and software level
23. The ability to execute a program that is only partially in memory has benefits like
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the amount of physical memory cannot put a constraint on the program
programs for an extremely large virtual space can be created
throughput increases
24. A semaphore is a shared integer variable
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that can not drop below zero
that can not be more than zero
that can not drop below one
25. Virtual Memory is
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Extremely Large Main memory
Extremely Large Secondary memory
An illusion of extremely large main memory
26. RPC stands for:
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Remote Procedure Communication
Remote Process Call
Remote Procedure Call
27. A plug and play storage device that simply plugs in the port of a computer is
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flash drive
compact disk
hard disk
28. Number of processes completed per time unit is:
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CPU utilization
Throughput
Waiting time
29. Symptoms of swap-file problems include extremely slow system speed and a disk that is constantly being accessed, which is referred to as ______________.
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Clocking
Thrashing
Booting
30. Which one is a 'text editor' for microsoft windows?
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MS Word
Ms Excel
WordPad
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