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You have been hired by a small company to install a backbone to connect four 100base-T Ethernet LANs (each using one 24-port hub) and to provide a connection to the Internet. Develop a simple backbone and determine the total cost (i.e., select the backbone technology and price it, select the cabling and price it, select the devices and price them, and so on). Prices are available at www.datacommwarehouse.com, but use any source that is convenient. For simplicity, assume that category 5, category 5e, category 6, and fiber-optic cable have a fixed cost per circuit to buy and install, regardless of distance, of $50, $60, $120, and $300, respectively.
Suppose there is a Certificate Authority (CA) with well-known public key. Further suppose every user is issued a certificate for his/her public key.
The telephone communication systems and long distances agreements are managed by a telecommunications department in the headquarters that reports to the vice president of finance. Outline pros and cons of both alternatives.
Users are familiar with some network services like HTTP (Hypertext Transport Protocol) - Web, NNTP (Network News Transport Protocol). How do they figure into organizational security?
problems of IPV, DNS server software, TCP SYN attack, Ping of Death, Land attack, Teardrop attack, Smurf attack, Fraggle attack
Write down the advantages of some of the current technologies including VoIP, Unified Communications, Virtual Private Networks.
Consider yourself as the network security technician. Your internetwork connects six buildings through fiber links. You have experienced the numerous attacks on your corporate Web server.
Manager would like to add four servers to network so employees can share files. Manager would also like to permit VPN access for her employees so they can work remotely.
How many fram need to sent? Determine the size of data in each frame?
What factors of the various UPS systems must concern you? What would you suggest as the lowest cost solution for this situation?
You are to create a small network (less than 50 but greater than 20 nodes) for organization of choice consisting of multiple operating systems, security mechanisms, and devices.
How is networking beneficial to a professional in any career field?
Choose an existing RFC and share it with the class by providing a brief description of the RFC and its importance to the Internet.
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