Question 1

Define Cyber Security.

Accepted Answer

Cyber Security is the aggressive protection of digital networks, hardware, and data from unauthorized access or destruction.

Question 2

What is a Threat?

Accepted Answer

A Threat is any potential mathematical or physical event that could exploit a vulnerability to compromise a system.

Question 3

Define Vulnerability.

Accepted Answer

A Vulnerability is a fatal architectural flaw or weakness in a system that can be exploited by a threat.

Question 4

What is a Firewall?

Accepted Answer

A Firewall is a critical network security system that strictly monitors and aggressively filters incoming and outgoing network traffic based on mathematical rules.

Question 5

Define Encryption.

Accepted Answer

Encryption is the mathematical transformation of readable plaintext into unreadable ciphertext using cryptographic algorithms.

Question 6

What is Phishing?

Accepted Answer

Phishing is a highly deceptive cyber-attack utilizing fraudulent communications to psychologically manipulate users into revealing critical credentials.

Question 7

Define Malware.

Accepted Answer

Malware is any malicious software strictly engineered to infiltrate, damage, or disable computer systems and networks.

Question 8

What is Authentication?

Accepted Answer

Authentication is the strict mathematical process of verifying the absolute identity of a user or system.

Question 9

Define Digital Signature.

Accepted Answer

A Digital Signature is an advanced cryptographic mechanism verifying the absolute authenticity and absolute integrity of a digital document.

Question 10

What is VPN?

Accepted Answer

A VPN mathematically establishes a secure, encrypted tunnel over an untrusted public network.

Question 11

Explain the different types of cyber attacks (DoS, MitM, Phishing, SQL Inject…

Accepted Answer

A comprehensive technical breakdown of four devastating cyber-attacks: Denial of Service (DoS) targeting availability, Man-in-the-Middle (MitM) targeting confidentiality, Phishing targeting human psychology, and SQL Injection targeting database integrity.

Question 12

Describe the concept of Public Key Infrastructure (PKI).

Accepted Answer

An architectural exploration of the Public Key Infrastructure (PKI), detailing how Certificate Authorities (CAs) use asymmetric cryptography to bind mathematical public keys to verified human or corporate identities.

Question 13

Explain the RSA algorithm for encryption and decryption.

Accepted Answer

A rigorous mathematical breakdown of the RSA algorithm, detailing the prime number generation, key derivation, and the modular exponentiation required for absolute secure encryption and decryption.

Question 14

Discuss the concept of Intrusion Detection Systems (IDS).

Accepted Answer

An architectural review of Intrusion Detection Systems (IDS), explaining how Network-based and Host-based sensors utilize Signature and Anomaly detection algorithms to alert administrators of active cyber-attacks.

Question 15

Explain the concept of Network Security protocols (SSL/TLS, IPSec).

Accepted Answer

A detailed exploration of essential Network Security Protocols, strictly contrasting the Application-layer encryption of SSL/TLS with the Network-layer IP encapsulation and tunneling of IPSec.

Question 16

Describe the concept of Digital Certificates and their role in security.

Accepted Answer

Digital Certificates are highly rigid cryptographic data structures, structurally acting as electronic passports that bind a public key to an entity through the unbreakable mathematical signature of a CA.

Question 17

Explain the concept of Cyber Laws and IT Act 2000.

Accepted Answer

A detailed overview of Cyber Laws, explicitly focusing on the Indian Information Technology (IT) Act 2000, its legal framework for digital signatures, e-commerce, and penalization of cybercrimes.

Question 18

(a) Explain the concept of Cryptography in detail. (b) Discuss Symmetric and …

Accepted Answer

An exhaustive architectural analysis of Cryptography, contrasting the high-speed block processing of Symmetric encryption (like DES) with the mathematically intense, dual-key infrastructure of Asymmetric encryption, highlighting their respective merits and devastating flaws.

Question 19

(a) Explain the AES (Advanced Encryption Standard) algorithm in detail. (b) C…

Accepted Answer

A definitive structural analysis of the Advanced Encryption Standard (AES), explaining its Substitution-Permutation Network architecture, the rigorous byte transformations (SubBytes, ShiftRows, MixColumns), and a stark contrast against the outdated DES algorithm.

Question 20

(a) Explain the concept of Network Security in detail. (b) Discuss firewalls …

Accepted Answer

A deep architectural dive into Network Security perimeters, explicitly contrasting the filtering logic of Packet, Stateful, and Application Proxy firewalls, and detailing the highly secure DMZ network topology.

Question 21

(a) Explain the concept of Web Security. (b) Discuss SQL Injection, XSS, and …

Accepted Answer

A critical engineering overview of Web Security, thoroughly analyzing the mechanics of SQL Injection (SQLi), Cross-Site Scripting (XSS), and Cross-Site Request Forgery (CSRF), alongside the cryptographic deployment of HTTPS and SSL.

Question 22

(a) Explain the Indian IT Act 2000 and its amendments. (b) Discuss cyber crim…

Accepted Answer

A comprehensive legal and operational analysis of the Indian IT Act 2000, detailing its strict penalization of cybercrimes (Sections 43, 66), and explaining the rigorous, mathematically sound procedures of Digital Forensics for evidence extraction.

Cyber Security Management