साइबर सुरक्षा, IT नीति र विद्युतीय कारोबार ऐन – Cyber Security, IT Policy & ETA MCQ
साइबर सुरक्षा, IT नीति र विद्युतीय कारोबार ऐन – कम्प्युटर र IT
Cyber Security, IT Policy & ETA · Computer & IT (Technical) · ४०७ प्रश्न
४०७ प्रश्न उपलब्ध। मोड छान्नुहोस्:
साइबर सुरक्षा, IT नीति र विद्युतीय कारोबार ऐन: 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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Running a suspicious program in an isolated, controlled environment so it cannot harm the real system is called:
सही उत्तर: ख) Sandboxing
A sandbox restricts what code can access, allowing safe observation of its behaviour.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Antivirus detection that identifies unknown malware by analysing suspicious behaviour or code characteristics, rather than matching known patterns, is called:
सही उत्तर: क) Heuristic (behaviour-based) detection
Signature detection only catches known malware; heuristic analysis can flag new variants but may produce false positives.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A Web Application Firewall (WAF) is designed mainly to protect against:
सही उत्तर: घ) Attacks on web applications such as SQL injection and cross-site scripting
A WAF filters HTTP/HTTPS traffic to and from a web application using rules aimed at application-layer attacks.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A firewall that examines each packet's header (source/destination IP, port, protocol) independently against rules, without tracking connections, is a:
सही उत्तर: ग) Packet-filtering firewall
Simple packet filters are fast but stateless; stateful firewalls also track the state of connections.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A long-term, stealthy and well-resourced intrusion into a network, often by state-sponsored groups to steal data over months, is called a(n):
सही उत्तर: ख) Advanced Persistent Threat (APT)
APTs combine custom malware, social engineering and lateral movement while staying hidden for long periods.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A virus that changes its own code each time it infects a new file, so that signature-based antivirus finds it hard to detect, is a:
सही उत्तर: क) Polymorphic virus
Polymorphic viruses encrypt or mutate their bodies with varying keys, so no fixed signature matches every copy.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Software that secretly gathers information about a user's activities and sends it to a third party without consent is:
सही उत्तर: घ) Spyware
Spyware monitors browsing, keystrokes or personal data; adware mainly displays unwanted advertisements.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An attacker compromises a website that members of a target organisation are known to visit frequently, in order to infect their computers. This is a:
सही उत्तर: ग) Watering hole attack
Like a predator waiting at a watering hole, the attacker infects a trusted site the victims already use.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A fraud in which tiny amounts, such as fractions of a rupee, are taken from a very large number of accounts so that each loss goes unnoticed is called a:
सही उत्तर: ख) Salami attack
The name comes from slicing a salami thinly; the individual amounts are negligible but the total is large.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Stealing or predicting a valid session ID to take over a user's logged-in web session is called:
सही उत्तर: क) Session hijacking
Using HTTPS, secure and HttpOnly cookies, and regenerating session IDs after login reduce session hijacking.
💬 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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