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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In network programming, a socket is identified by the combination of:
सही उत्तर: ग) An IP address and a port number
For example 192.168.1.10:80 identifies a socket; a TCP connection is defined by a pair of sockets.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Well-known port numbers, assigned to standard services such as HTTP and FTP, range from:
सही उत्तर: ख) 0 to 1023
IANA divides ports into well-known (0-1023), registered (1024-49151) and dynamic/private (49152-65535).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which TCP flag is used to begin the graceful termination of a TCP connection?
सही उत्तर: क) FIN
Each side sends a FIN segment that the other acknowledges, closing the connection in both directions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Routing protocols used within a single autonomous system, such as RIP and OSPF, are known as:
सही उत्तर: क) Interior Gateway Protocols (IGP)
IGPs route inside one organisation's network; BGP is the exterior gateway protocol used between autonomous systems.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a routing table, the route 0.0.0.0/0 represents the:
सही उत्तर: घ) Default route used when no more specific route matches
0.0.0.0/0 matches every destination with the shortest prefix, so it is used only when no longer prefix matches.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A route manually configured by the network administrator and not changed automatically is called a:
सही उत्तर: ख) Static route
Static routes are simple and secure for small networks but must be updated by hand when the topology changes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Distance-vector routing protocols such as RIP may suffer from the 'count-to-infinity' problem. A common technique used to reduce it is:
सही उत्तर: क) Split horizon
With split horizon a router does not advertise a route back out of the interface from which it learned that route.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the Stop-and-Wait flow control protocol, the sender:
सही उत्तर: घ) Sends one frame and waits for its acknowledgement before sending the next
Stop-and-Wait is simple but inefficient on long links because only one frame is outstanding at any time.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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With 3-bit sequence numbers, what is the maximum sender window size in the Go-Back-N ARQ protocol?
सही उत्तर: ग) 7
Go-Back-N allows a window of at most 2^m - 1 = 2^3 - 1 = 7; Selective Repeat allows at most 2^(m-1) = 4.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The maximum throughput (channel efficiency) of slotted ALOHA is about:
सही उत्तर: ख) 36.8%
Slotted ALOHA reaches 1/e ≈ 0.368 at G = 1, which is double the 1/(2e) ≈ 18.4% of pure ALOHA.
💬 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।
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