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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In Mandatory Access Control (MAC), access decisions are based on:
सही उत्तर: घ) Security labels and clearances set by the system administrator, which users cannot change
MAC, used in military-style systems, compares a subject's clearance with an object's classification; DAC lets owners decide.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In biometric systems, the rate at which an impostor is wrongly accepted as a legitimate user is the:
सही उत्तर: ग) False Acceptance Rate (FAR)
FAR measures wrong acceptances (a security risk), FRR measures wrong rejections, and CER is the point where they are equal.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Logging in once and then gaining access to several related systems without logging in again is called:
सही उत्तर: ख) Single Sign-On (SSO)
SSO improves convenience and reduces password fatigue; it relies on a trusted identity provider.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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RADIUS and TACACS+ are protocols used for:
सही उत्तर: क) Centralised authentication, authorization and accounting of network users
Network devices forward login requests to a central RADIUS or TACACS+ server, which checks credentials and logs activity.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In AAA security, the three A's stand for:
सही उत्तर: घ) Authentication, Authorization and Accounting
Authentication proves who you are, authorization decides what you may do and accounting records what you did.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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WPA2 protects Wi-Fi traffic using which encryption method?
सही उत्तर: ग) AES-CCMP
WPA2 mandates CCMP based on AES; the older WEP used RC4 and was easily broken.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which Wi-Fi security protocol replaces the pre-shared key handshake with SAE (Simultaneous Authentication of Equals) for stronger protection against password guessing?
सही उत्तर: ख) WPA3
WPA3-Personal uses SAE, which resists offline dictionary attacks that affected WPA2-PSK.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The IEEE 802.1X standard is used for:
सही उत्तर: क) Port-based network access control, authenticating devices before they get LAN or Wi-Fi access
802.1X uses a supplicant, an authenticator (switch or access point) and an authentication server such as RADIUS.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A system that collects and correlates log data from many devices in real time to detect security incidents is a:
सही उत्तर: घ) SIEM (Security Information and Event Management)
SIEM tools aggregate logs, raise alerts on suspicious patterns and support investigations, usually operated by a Security Operations Centre.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Reducing a system's attack surface by removing unnecessary services, closing unused ports and changing default passwords is called:
सही उत्तर: ग) System hardening
Hardening configures systems securely so that fewer weaknesses are available to attackers.
💬 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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