System Programming MCQs with Answers
Practice important System Programming MCQs with answers and explanations.
Chapter: 141
Q3041:
Using different synchronization objects for the same variable across threads is ________.
A. efficient
B. correct
C. incorrect
D. mandatory
Correct Answer:
C
Chapter: 141
Q3042:
Mutual exclusion works correctly only when shared variables are protected by ________.
A. multiple locks
B. different variables
C. a single object
D. timer interrupts
Correct Answer:
C
Chapter: 141
Q3043:
The mapping between synchronization object and variable can be ________.
A. one to one or one to many
B. many to many only
C. dynamic and temporary
D. static and unused
Correct Answer:
A
Chapter: 141
Q3044:
If two threads use different synchronization objects for the same variable, the result may be ________.
A. improved
B. ignored
C. incorrect
D. delayed
Correct Answer:
C
Chapter: 141
Q3045:
All variables within a critical section must be guarded by ________.
A. dynamic memory
B. single synchronization object
C. switch case
D. global flag
Correct Answer:
B
Chapter: 141
Q3046:
A synchronization object is used to manage ________ in shared data.
A. memory address
B. function calls
C. access control
D. arithmetic
Correct Answer:
C
Chapter: 141
Q3047:
The practice of guarding all shared variables with a single object avoids ________.
A. deadlocks
B. semaphores
C. inconsistency
D. I/O exceptions
Correct Answer:
C
Chapter: 141
Q3048:
A guideline for protecting shared variables involves ________.
A. declaring all as constants
B. assigning thread IDs
C. using a single synchronization object
D. disabling interrupts
Correct Answer:
C
Chapter: 141
Q3049:
A synchronization object ensures mutual exclusion by ________.
A. random access
B. blocking multiple entries
C. locking multiple variables together
D. timing execution
Correct Answer:
B
Chapter: 141
Q3050:
________ is a result of using two different synchronization objects for the same shared variable.
A. fast execution
B. compile-time error
C. inconsistent data
D. memory optimization
Correct Answer:
C
Chapter: 141
Q3051:
When mapping synchronization object to variables, the best practice is to use ________ mapping.
A. recursive
B. many-to-many
C. one-to-one or one-to-many
D. temporary
Correct Answer:
C
Chapter: 141
Q3052:
The use of synchronization objects is part of ________ control in concurrent programs.
A. display
B. data
C. access
D. thread
Correct Answer:
C
Chapter: 141
Q3053:
A single object used to guard critical section data provides ________ execution.
A. serialized
B. parallel
C. arbitrary
D. interleaved
Correct Answer:
A
Chapter: 141
Q3054:
It is ________ to use different synchronization objects on the same shared data.
A. recommended
B. logical
C. incorrect
D. necessary
Correct Answer:
C
Chapter: 141
Q3055:
In the given example, the variable N is being accessed by ________ objects.
A. global
B. local
C. two different
D. temporary
Correct Answer:
C
Chapter: 141
Q3056:
If synchronization is improperly managed, ________ conditions may occur.
A. update
B. race
C. logical
D. compile
Correct Answer:
B
Chapter: 141
Q3057:
Guarding shared data with multiple synchronization objects results in ________.
A. thread-safe behavior
B. race-free operation
C. potential conflicts
D. reliable execution
Correct Answer:
C
Chapter: 141
Q3058:
Mutual exclusion ensures that ________ thread accesses a variable at one time.
A. every
B. no
C. multiple
D. only one
Correct Answer:
D
Chapter: 141
Q3059:
An incorrect use of synchronization may generate ________ results.
A. optimized
B. incomplete
C. incorrect
D. sequential
Correct Answer:
C
Chapter: 141
Q3060:
The variable N should be protected by ________ synchronization object in a thread-safe design.
A. unique
B. multiple
C. shared
D. single
Correct Answer:
D