Which memory location holds the addresses of various Interrupt Service Routines (ISRs) to handle specific hardware triggers? MCQ with Answer and Explanation

Question
Which memory location holds the addresses of various Interrupt Service Routines (ISRs) to handle specific hardware triggers?
A. Process Control Block (PCB)
B. Virtual Swap Block
C. Windows Registry Base
D. Interrupt Vector Table (IVT)
Answer: Option D
Solution (By JKSSB Mock Tests)
The Interrupt Vector Table maps specific interrupt signal identifier numbers directly to the memory locations of their respective Interrupt Service Routines.
This question belongs to: Computer Operating Systems
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Which of the following is a type of memory management that uses variable-sized partitions?
A. Segmentation
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Correct Answer: Option A

Explanation:
Segmentation allows variable-size memory segments based on logical units; paging uses fixed-size pages.
This question belongs to: Computer Operating Systems
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What does 'Symmetric Multiprocessing (SMP)' achieve compared to asymmetric multiprocessing?
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C. SMP allows all processors to handle any workload in parallel without a single bottleneck master node.
D. SMP binds the operating system kernel execution strictly to a single master processor.
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Correct Answer: Option C

Explanation:
SMP distributes operating system overhead and user execution dynamically across all available peer processors, eliminating master-slave bottlenecks.
This question belongs to: Computer Operating Systems
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What is the purpose of the Android 'KeyguardManager'?
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Correct Answer: Option B

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