कम्प्युटर र सूचना प्रविधि (प्राविधिक)
कम्प्युटर र सूचना प्रविधि (प्राविधिक)
Computer & IT (Technical) · ५,०७६ प्रश्न
५,०७६ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कम्प्युटर र IT: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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User-level threads managed by a thread library, without the kernel knowing about them, have the disadvantage that:
सही उत्तर: ख) A blocking system call by one thread blocks the entire process
Since the kernel sees only one schedulable entity, if one user-level thread blocks in a system call, the whole process blocks.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In UNIX, the fork() system call returns which value to the newly created child process?
सही उत्तर: क) 0
fork() returns 0 in the child, the child's PID in the parent, and -1 if process creation fails.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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After fork(), which system call does a process use to replace its memory image with a new program?
सही उत्तर: घ) exec()
The exec() family loads a new program into the calling process's address space, replacing the old code and data.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In Linux, background service processes such as sshd or crond that run without a controlling terminal are called:
सही उत्तर: ग) Daemons
Daemons are long-running background processes that provide services and are not attached to any terminal.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A process whose parent has terminated without waiting for it is called a(n):
सही उत्तर: ख) Orphan process
An orphan is a child whose parent has exited; in UNIX it is adopted by the init (PID 1) process.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which state transition is NOT possible in the standard five-state process model?
सही उत्तर: क) Waiting to Running
When the event a waiting process needs occurs, it moves to Ready; only the dispatcher can then move it from Ready to Running.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A process that is waiting for an I/O operation to complete is in the:
सही उत्तर: घ) Waiting (blocked) state
A process that cannot continue until some event such as I/O completion occurs is placed in the Waiting (blocked) state.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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When a process is first being created, it is in which state?
सही उत्तर: ग) New
In the five-state model, a process is in the New state while it is being created, and is then admitted to the Ready state.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which is an example of a hard real-time system?
सही उत्तर: ख) An airbag control system in a car
An airbag controller must react within a strict time limit; a late response is a failure, which is the defining feature of hard real-time systems.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a soft real-time system, missing a deadline:
सही उत्तर: क) Reduces the quality of service but is tolerated
Soft real-time systems (e.g., video streaming) try to meet deadlines, but an occasional miss only lowers quality; in hard real-time systems a missed deadline is a failure.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
नमस्ते! पाठ्यक्रम, सामान्य ज्ञान, भाषा परीक्षा वा कुनै प्रश्नको उत्तर बुझ्न सोध्नुहोस्।
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