Security is an essential element in modern operating system design. An open and unprotected TCP/IP port can present a significant network operating system vulnerability. In the first portion of your post, you will investigate and describe the security status of your operating system. Using an available workstation, execute one of the following commands on your Windows, OS X, or Linux workstation to determine the status of its TCP ports.Windows: netstat -np tcpLinux: netstat -atOS X: netsat -p tcpIn the second portion of your post, explain what you found based upon what your operating system reports. For the third and final portion of your post, perform an internet search to determine what elements of SANS 20 you could leverage to reduce the TCP/IP vulnerabilities of your workstation. Report your findings to the class.

Assignment 2: Creating a Use Case  Refer to the RMO CSMS marketing subsystem shown in Figure 3-11 on page 79-80 of the textbook.Write a two to three (2-3) page paper in which you:Using Microsoft Visio or an open source alternative such as Dia, create a use case graphic rendering that shows all actors and all use cases for the RMO CSMS marketing subsystem. Note: The graphically depicted solution is not included in the required page length.Provide a narrative describing your diagram that includes: an overview of the diagraman analysis of the actorsUse at least three (3) quality resources outside of the suggested resources in this assignment. Note: Wikipedia and similar Websites do not qualify as quality resources.Your assignment must follow these formatting requirements:Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; citations and references must follow APA or school-specific format. Check with your professor for any additional instructions.Include a cover page containing the title of the assignment, your name, the professor’s name, the course title, and the date. The cover page and the reference page are not included in the required assignment page length.Include charts or diagrams created in Visio or an open source alternative such as Dia. The completed diagrams / charts must be imported into the Word document before the paper is submitted.The specific course learning outcomes associated with this assignment are:Identify system stakeholders and formulate their needs.Create a use case based on relating functional requirements.Use technology and information resources to research issues in systems analysis and design.Write clearly and concisely about advanced systems analysis and design topics using proper writing mechanics and technical style conventions.