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RIP characteristics include: – Classful, distance vector routing protocol – Metric is Hop Count – Does not support VLSM or discontiguous subnets – Updates every 30 seconds • Rip messages are encapsulated in a UDP segment with source and destination ports of 520

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Which of the following can exist in a distance vector network that has not converged? –routing loops –inconsistent traffic forwarding –inconsistent routing table entries

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Why is fast convergence desirable in networks that use dynamic routing protocols? • Routers may make incorrect forwarding decisions until the network has converged. 2. What is conditions must be met in order for a network to have converged? • The routers in the network are operating with consistent routing knowledge

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Which two scenarios would require an administrator to alter the static routes that are configured on that router? – The destination network no longer exists. – A topology change occurs where the existing next-hop address or exit interface is not accessible

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Router# show ip interface brief show ip interface show interface show flash: show ip route dir nvram: show arp Router# ping {destination IP Address} traceroute {destination IP Address} telnet {IP address} show cdp neighbors [detail]

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Some of the different categories for hosts are: –General users –Special users –Network resources –Router LAN interfaces –Router WAN links –Management access
In addition, remember to document your IP addressing scheme on paper. This will be an important aid in troubleshooting and evolving the network

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Which two features make switches preferable to hubs in Ethernet-based networks? –minimizing of collisions –increase in the throughput of communications

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What statements are true regarding addresses found at each layer of the OSI model? –Layer 2 may identify devices by a physical address burned into the network card –Layer 3 represents a hierarchical addressing scheme

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The devices are recommended to be assigned static IP addresses: – servers – network printers – routers – Switchs – firewalls

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What are three common problems with a large network? –performance degradation –security issues –host identification

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