OSG202 Haianh 2 Questions And Answers With Verified Study Tests
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Course
OSG202
Institution
OSG202
OSG202 Haianh 2 Questions And Answers With Verified Study Tests
Which of the following conditions must be held to provide good solution for mutual exclusion? *
1/1
No process running outside its critical region may block another process
No process must wait forever to enter its critical region
...
OSG202 Haianh 2 Questions And Answers With
Verified Study Tests
Which of the following conditions must be held to provide good solution for mutual exclusion? *
1/1
No process running outside its critical region may block another process
No process must wait forever to enter its critical region
No two processes simultaneously in critical region
All of the other choices
No assumptions made about speeds or numbers of CPUs ANS D
In terms of disk storage efficiency, the method of "Backing up pages dynamically" in comparison
with the method of "Paging to a static swap area" is *
0/1
Nearly equal
Better
Equal
Worse ANS B
A well-known operating system for Handheld Computer is: *
1/1
e-COS
TinyOS
Symbian OS and Palm OS
MS-DOS ANS C
Critical Region (Section) concept used in interprocess communication is: *
1/1
None of the other choices
,A part of shared data
A part of shared memory
A part of the program where the shared memory is accessed ANS D
When there is an excessive amount of page swapping between main memory and secondary storage,
the operation becomes inefficient, which is called ____. *
1/1
excessive demand paging
over swapping
hot swapping
thrashing ANS D
Suppose a virtual address space of 2^24 words and the page size is 2^12 words. If the virtual address
is 123456 in Hexadecimal, what would be the page number in Hexadecimal? *
1/1
12345
1234
123456
123 ANS D
A system with 32 bit virtual address. If the page size is 4 KB and each table entry occupies 4 bytes,
what is the size of the page table? *
1/1
4 MB
8 MB
2 MB
1 MB ANS A
Which of these statements about the Inverted Page Table are true? *
1/1
, An entry contains the pair (process, offset) mapped into the corresponding page frame
An entry contains the pair (segment, virtual page) mapped into the corresponding page frame
An entry contains the pair (process, virtual page) mapped into the corresponding page frame
An entry contains the pair (segment, offset) mapped into the corresponding page frame ANS C
In terms of speed the best method of Dynamic Storage-Allocation is: *
1/1
Worst fit
Best fit
Next fit
First fit ANS D
A process where no concurrency inside process; everything happens sequentially is called : *
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None of the other choices
Sequential access process
Sequential process
Random access process ANS C
What is not a field in the process table that relates process management? *
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CPU time used
PC, PSW, SP
User ID, Group ID
Process ID ANS C
Which of the following process state transitions is correct, when the external event for which a
process was waiting happens? *
1/1
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