OSG202 Haianh Questions And Answers Complete Study Solutions 2024/2025 Updates
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Course
OSG202
Institution
OSG202
OSG202 Haianh Questions And Answers Complete Study Solutions 2024/2025 Updates
Which of the following statements about the CPU's handling interrupts is incorrect? *
None of the other choices
The CPU branches to a new instruction sequence
The hardware saves the old PC location
The processor cea...
OSG202 Haianh Questions And Answers
Which of the following statements about the CPU's handling interrupts is incorrect? *
None of the other choices
The CPU branches to a new instruction sequence
The hardware saves the old PC location
The processor ceases to execute the current sequence of instructions ANS None of the other
choices
____ is the partitioning of a single server, each of which can support a different operating *
Multiprocessing
Multithreading
Shared processing
Virtualization ANS D
Consider a computer system that has cache memory, main memory (RAM) and disk, and OS uses
virtual memory. It takes 1 nsec to access a word from the cache, 10 nsec to access a word from RAM,
and 10 msec to access a word from the disk. If the cache hit rate is 95% and main memory hit rate is
99%, what is average time to access a word? *
a. 1.445 nsec
b. 5,001.445 nsec
c. 5,000.495 nsec
d. 5,000.95 nsec ANS B
Booting a general purpose computer involves the following steps except *
a. Loading the OS
b. Loading the command interpreter
c. Loading one or more bootstrap loaders
d. Execution of a ROM-based POST sequence ANS B
,As one proceeds down the memory hierarchy (from inboard memory to offline storage), which of the
following conditions is correct? *
Decreasing access time
None of the other choices
Decreasing cost per bit
Decreasing capacity ANS C
The two basic types of processor registers are: *
User-visible and user-invisible registers
None of the other choices
Control and Status registers
General and special registers ANS D
Consider a computer system that has cache memory, main memory (RAM) and disk, and OS uses
virtual memory. It takes 2 nsec to access a byte from the cache, 20 nsec to access a byte from RAM,
and 10 msec to access a block of 1000 bytes from the disk. If a book has 1000 pages, each with 50
lines of 80 characters each, How long it will take to electronically scan the text for the case of the
master copy being in each of the level as one proceeds down the memory hierarchy (from inboard
memory to offline storage)? *
1 msec, 10 msec, 5 sec
1 msec, 10 msec, 10 sec
2 msec, 20 msec, 10 sec
4 msec, 40 msec, 20 sec ANS D
The main characteristics of layered system does not include: *
A. Upper layer can only call functions of closely lower layer
B. Each layer has well defined functions
C. Each layer runs independently
D. Many layers ANS C
Which of special register in the CPU points to the top of the current stack in the memory? *
,PC
PSW
IR
SP ANS D
A CPU may have multiple execution units, so that can carry out multiple instructions in the same
time is called: *
0/1
None of the other choices
Multicore
Pipeline
Superscalar ANS D
Consider a computer system that has cache memory, main memory (RAM) and disk, and OS uses
virtual memory. It takes 2 nsec to access a word from the cache, 20 nsec to access a word from RAM,
and 10 msec to access a word from the disk. If the cache hit rate is 95% and main memory hit rate is
99%, what is average time to access a word? *
5,000.99 nsec
5,002.89 nsec
2.89 nsec
5,001.9 nsec ANS B
Information that must be saved prior to the processor transferring control to the interrupt handler
routine includes: *
0/1
PSW
None of the other choices
PSW and Contents of processor registers
PSW and PC ANS D
, Examples of general purpose stored program computers include the following except *
0/1
Personal computers
Network servers
Workstations
MP3 player ANS D
The ways that input/output can be done is? *
DMA (Direct Memory Access)
All of the other choices
Busy waiting
Interrupt ANS B
List of memory location, that contains the executable program, the program's data, and its stack is
called: *
0/1
set of resources
all of the other choices
address memory
address space ANS D
Which is not an example of a resource that is commonly space-multiplexed? *
0/1
Video RAM
Main memory
CPU
Hard drive ANS C
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