Network Security and Cryptography

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 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.

Submission: Submit your essay as a Word document

*Failure to include a cover page with the exact formatting used in the assignment policy and/or reference page will result in a 10-point deduction*

Your assignment submission will be turned into Turnitin. Turnitin does verify the use of AI-generated material, and this will be considered plagiarism.

Note: It’s essential to review the specific guidelines and requirements provided by your instructor or institution before completing the assignment.

Question 2

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?

Note APA formate with 700 to 800 words each question

AI should be below 10 %

And refrences i want each question separately

Requirements: 700 to 800 words

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