Computer Network & Security Important Questions | How To Pass CNS | Sem 5 Information Technology

Computer Network & Security (CNS) Important Questions | How To Pass CNS | Sem 5 Information Technology (For Mumbai University)

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Welcome back to our channel. In today’s video, we are focusing on Computer Network & Security (CNS), one of the most vital subjects in Semester 8 Information Technology (For Mumbai University).

CNS can feel vast because it covers network security models, cryptography, malicious attacks, secure communication protocols, and system security concepts. But if you know which questions to prepare, passing CNS becomes much easier. That’s exactly what this video provides – a unit-wise breakdown of the most important and frequently asked questions from CNS.

Topics Covered (Unit-Wise):
Module 1 – Introduction to Network Security & Cryptography: CIA triad, OSI Security Architecture, security goals, classical encryption, passive vs active attacks.
Module 2 – Cryptography & Key Management: RSA, HMAC, CMAC, SHA-256, Kerberos, DES vs AES, PKI, X.509 certificates, digital signatures.
Module 3 – Malicious Software: DoS attacks, Trojan horse, backdoor, SPAM, virus vs worm, keyloggers, rootkits.
Module 4 – IP, Transport & Email Security: IPSec, VPN, AH & ESP, SSL, SSH, S/MIME, HTTPS, Email Security.
Module 5 – Network Management & NAC: NAC use cases, enforcement methods, SNMP-based management security.
Module 6 – System Security: IDS, firewalls, types of firewalls, firewall characteristics.

By watching this video, you’ll know exactly which topics and questions to focus on so you can score well in CNS. These questions are taken from past exam papers, university patterns, and expert recommendations, making this your perfect exam preparation guide.

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