Reference no: EM133502623

Assignment A: Refactoring Network Security and Cryptography Essays

What is Refactoring? Find an example of refactoring in the literature and tell us about it. Is this procedure a good thing - or would it be better to start over with whatever's being refactored instead of modifying the existing code? How can you persuade clients to allow you to spend time on refactoring when all they want is new functionality? 500 words.

Assignment B: Network Security and Cryptography

Instructions:

Read chapters 7 and 8 of the book "Business Data Communications- Infrastructure, Networking and Security, 7th edition." Based on your understanding of the chapters, write a concise essay addressing the following points:

Part 1: Network Security

Question I. 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.

Question II. 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.

Question III. 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 2: Cryptography

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

Question II. Describe symmetric and asymmetric encryption algorithms. Compare and contrast their characteristics, advantages, and use cases.

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