Are you grappling with the question, "Who will write my Wireshark assignment?" Look no further! At ComputerNetworkAssignmentHelp.com, we understand the intricacies of computer assignments and provide comprehensive assistance to students worldwide. In this post, we delve into two master-level questions in computer networking, offering expert solutions crafted by our seasoned professionals.

Question 1: Analyzing Network Traffic with Wireshark
As a network administrator, you've been tasked with identifying and resolving performance issues on your company's network. Utilizing Wireshark, analyze the provided network capture to troubleshoot the problem. Identify the top three sources of network traffic and propose strategies to optimize network performance.

Solution:
Upon examining the network capture using Wireshark, we observed that the majority of network traffic originates from three main sources:

1. Streaming Media Servers: The analysis revealed significant traffic originating from streaming media servers, indicating high bandwidth usage. To optimize performance, consider implementing Quality of Service (QoS) policies to prioritize critical traffic over non-essential data streams. Additionally, deploying caching mechanisms can reduce the strain on network resources by serving frequently accessed content locally.
2. Background Update Services: Several devices on the network were seen communicating with update servers, consuming considerable bandwidth. Implementing scheduling mechanisms to stagger update downloads during off-peak hours can alleviate congestion and ensure smoother network operation during business hours.
3. Network File Transfers: File transfer protocols such as FTP and SMB accounted for a notable portion of network traffic. To enhance efficiency, consider implementing compression algorithms or deploying dedicated file transfer servers to streamline data exchange processes.

By addressing these key sources of network traffic and implementing appropriate optimization strategies, you can significantly enhance network performance and ensure seamless operation for your organization.

Question 2: Designing a Secure Virtual Private Network (VPN)
Your company requires a secure VPN solution to facilitate remote access for employees while ensuring data confidentiality and integrity. Design a VPN architecture incorporating encryption protocols and authentication mechanisms to meet these requirements. Provide a detailed rationale for your design choices.

Solution:
To design a secure VPN solution, we propose the following architecture:

1. Protocol Selection: Opt for the OpenVPN protocol due to its robust security features, including support for OpenSSL encryption and TLS-based authentication. OpenVPN provides strong encryption algorithms such as AES and RSA, ensuring data confidentiality and integrity during transit.
2. Authentication Mechanism: Implement a multi-factor authentication (MFA) mechanism to enhance security. Combine username/password authentication with one-time password (OTP) tokens or biometric authentication to mitigate the risk of unauthorized access.
3. Key Management: Utilize a centralized key management system to securely distribute encryption keys to VPN clients. Employing a robust key management protocol such as IKEv2/IPsec ensures that cryptographic keys are exchanged securely and regularly rotated to mitigate the risk of key compromise.
4. Network Segmentation: Implement network segmentation to isolate VPN traffic from the corporate network, reducing the attack surface and preventing lateral movement in case of a security breach. Utilize virtual LANs (VLANs) or software-defined networking (SDN) technologies to enforce access control policies and segregate user traffic based on security requirements.

By adopting this VPN architecture, your company can establish a secure remote access solution that safeguards sensitive data while facilitating seamless communication for remote employees.

Conclusion:
Mastering computer network assignments requires a deep understanding of networking principles and hands-on experience with industry-standard tools and protocols. At ComputerNetworkAssignmentHelp.com, our team of experts is committed to providing comprehensive assistance to students facing complex challenges in computer networking. Whether it's analyzing network traffic with Wireshark or designing secure VPN architectures, we're here to guide you every step of the way. Reach out to us today for personalized support tailored to your academic needs.