IT-505-07 NETWORK AND DATABASE SYSTEM DESIGN

Part A: Network Security

a) Define network security and its importance in modern organizations. Explain the concept of confidentiality, integrity, availability (CIA triad), and how it relates to network security.

b) Discuss common threats to network security, including unauthorized access, malware, social engineering, and denial-of-service (DoS) attacks. Explain the potential impacts of these threats on business operations.

c) Describe essential security measures that organizations should implement to protect their networks, such as firewalls, intrusion detection systems (IDS), virtual private networks (VPNs), and access control mechanisms.

Part B: Cryptography

a) Explain the role of cryptography in network security. Discuss its fundamental objectives, including confidentiality, integrity, authentication, and non-repudiation.

b) Describe symmetric and asymmetric encryption algorithms. Compare and contrast their characteristics, advantages, and use cases.

c) Discuss the importance of key management in cryptographic systems. Explain key generation, distribution, storage, and revocation processes.

Format and Guidelines:

The essay should be concise and within the 1000-word limit.

Use a clear and logical structure, including brief headings for each part.

Ensure proper citation and referencing of any sources used.

Demonstrate critical thinking by providing relevant examples and supporting evidence.

Use academic writing style and language appropriate for a graduate-level assignment.