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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Nepal's National Information and Communication Technology (ICT) Policy was issued in the year (BS):
सही उत्तर: ग) 2072
The National ICT Policy, 2072 replaced the earlier IT Policy of 2057; 2063 is the year of the Electronic Transactions Act.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Under Nepal's Electronic Transactions Act, 2063, a person to whom a Certifying Authority issues a digital certificate is called a:
सही उत्तर: ग) Subscriber
The certificate holder, who controls the private key matching the public key in the certificate, is the subscriber.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following acts is treated as an offence under Nepal's Electronic Transactions Act, 2063?
सही उत्तर: ख) Gaining unauthorized access to a computer system
The Act makes computer-related wrongs such as unauthorized access, damaging computer systems and altering source code punishable.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Nepal's Electronic Transactions Act, 2063 provides for which special body to hear and decide offences under the Act?
सही उत्तर: क) Information Technology Tribunal
The Act provides for an Information Technology Tribunal to adjudicate offences under it, with an appellate tribunal above it; the Cyber Bureau only investigates.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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On a link, a frame takes 2 ms to transmit and the one-way propagation delay is 4 ms. Ignoring ACK size and processing time, what is the link utilisation of Stop-and-Wait?
सही उत्तर: क) 20%
Utilisation = Tt / (Tt + 2Tp) = 2 / (2 + 2 × 4) = 2 / 10 = 20%.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a fibre-to-the-home (FTTH) Internet connection, the device at the customer's premises that converts the optical signal into Ethernet for the home router is the:
सही उत्तर: ख) ONT (Optical Network Terminal)
The ONT (also called ONU) terminates the passive optical network at the subscriber's end; a DSLAM is used in DSL networks at the provider's side.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A frame of 10,000 bits is sent over a 1 Mbps link whose one-way propagation delay is 5 ms. Under Stop-and-Wait (ignoring ACK transmission time), the time from starting to send the frame until its ACK arrives is:
सही उत्तर: घ) 20 ms
Transmission time = 10,000 / 10^6 s = 10 ms; plus a round trip of 2 × 5 = 10 ms gives 20 ms.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In TCP, the receiver controls how much data the sender may send before waiting for an acknowledgement by advertising its:
सही उत्तर: घ) Receive window size
The window field in each TCP segment tells the sender how many bytes the receiver can currently buffer, providing flow control.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A load balancer is used to:
सही उत्तर: ग) Distribute incoming requests across several servers
Spreading requests over multiple servers improves performance and availability; if one server fails, traffic goes to the others.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A layer 3 switch differs from an ordinary (layer 2) switch because it can:
सही उत्तर: ख) Route traffic between VLANs or subnets using IP addresses
A layer 3 (multilayer) switch combines switching with hardware-based IP routing, often used for inter-VLAN routing.
💬 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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