System Programming MCQs with Answers
Practice important System Programming MCQs with answers and explanations.
Chapter: 174
Q3841:
Which locking mechanism is better than critical sections but worse than interlocked functions?
A. SRW lock
B. Mutex
C. No synchronization
D. Spin lock
Correct Answer:
A
Chapter: 174
Q3842:
Performance order from highest to lowest starts with
A. No Synchronization
B. Mutex
C. Critical sections
D. Interlocked functions
Correct Answer:
A
Chapter: 174
Q3843:
Spin counts are used to optimize
A. Mutexes
B. Critical sections
C. SRW locks
D. No synchronization
Correct Answer:
B
Chapter: 174
Q3844:
Semaphore throttling can optimize
A. Mutexes
B. Critical sections
C. Interlocked functions
D. SRW locks
Correct Answer:
A
Chapter: 174
Q3845:
Using locking mechanisms is necessary to maintain
A. code accuracy
B. execution speed
C. memory consumption
D. processor temperature
Correct Answer:
A
Chapter: 174
Q3846:
Which locking mechanism is slowest?
A. Mutex
B. Interlocked functions
C. SRW lock
D. Critical sections
Correct Answer:
A
Chapter: 174
Q3847:
SRW locks are best for
A. mixed exclusive and shared locks
B. only exclusive locks
C. only shared locks
D. no locks
Correct Answer:
B
Chapter: 174
Q3848:
No synchronization leads to
A. code runaways
B. faster execution
C. with accuracy
D. and better locking
Correct Answer:
A
Chapter: 174
Q3849:
Interlocked functions belong to
A. hardware locking mechanisms
B. software locking mechanisms
C. both hardware and software
D. locking in kernel mode
Correct Answer:
B
Chapter: 174
Q3850:
Critical sections performance degrades
A. With increased thread count
B. With decreased thread count
C. With increased memory
D. With increased I/O
Correct Answer:
A
Chapter: 174
Q3851:
Mutex performance can be improved by
A. using semaphore throttling
B. using spin counts
C. using no locking
D. using conventional thread management
Correct Answer:
A
Chapter: 175
Q3852:
The first Intel processor mentioned had a clock speed of ______ MHz.
A. 477
B. 2
C. 3
D. 4
Correct Answer:
A
Chapter: 175
Q3853:
The clock speed bottleneck means
A. clock speed cannot be increased incrementally
B. clock speed can increase infinitely
C. clock speed decreases with time
D. clock speed is irrelevant
Correct Answer:
A
Chapter: 175
Q3854:
Most systems today have clock rates around
A. 2-3 GHz
B. 477 MHz
C. 4-5 GHz
D. 1 GHz
Correct Answer:
A
Chapter: 175
Q3855:
A multi-core processor is
A. a single chip with multiple cores
B. a single core with multiple threads
C. a chip with no cores
D. a chip with only one core
Correct Answer:
A
Chapter: 175
Q3856:
Multicore chips are commonly marketed with
A. 2, 4, or more processors
B. Only one processor
C. Exactly 3 processors
D. Exactly 5 processors
Correct Answer:
A
Chapter: 175
Q3857:
System vendors install multiple multicore chips to achieve
A. total processors like 4, 8, 16
B. more power consumption
C. less parallelism
D. only serial execution
Correct Answer:
A
Chapter: 175
Q3858:
In conventional programming, programs are usually written without considering
A. multi-core architecture
B. parallelism
C. networking
D. graphics
Correct Answer:
A
Chapter: 175
Q3859:
To increase application performance on multicore processors, you need to use
A. parallel programming threading
B. serial programming
C. database queries
D. GUI design
Correct Answer:
A
Chapter: 175
Q3860:
The Boss/Worker model is used to
A. exploit parallelism
B. synchronize memory
C. handle I/O operations
D. debug programs
Correct Answer:
A