Determining network needs

This chapter includes contents: Why does the organization want a new network installed? What services does the organization want the network to provide? Evaluating the installation site, evaluating distances between components, environmental conditions,...

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To use data encryption algorithms in network communications, all parities must first agree on using the same secret keys Rely on couriers Set up a meeting to determine a secret key Use postal service, email service, phone service … However, these conventional methods are inflexible for network communication applications Public-key cryptography (PKC) Invented in the 1970’s Without the need of sharing prior secrets to distribute secret keys securely Can also be used for authentication

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LANs, WANs, WLANs are known as edge networks May be contained within businesses or homes Needs to be protected from the rest of the Internet! Why firewall? Encryption? Cannot stop malicious packets from getting into an edge network Authentication? Can determine whether an incoming IP packet comes from a trusted user However, not all host computers have resources to run authentication algorithms Host computers managed by different users with different skill levels.

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This document is intended to help students determine whether or not they are ready to take our CCNA Boot Camp.Whether they are ready to start the CCNA curriculum or need a basic network fundamentals foundation first, this white paper can help them determine which path is right and how to begin each. Since students have varying degrees of knowledge, this paper is only intended as a “knowledge check” as to what additional training may be needed in order to attend our ICND1, ICND2, or CCNA Boot Camp.

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