quiz104key - d OSPF includes authentication mechanisms RIP...

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Quiz 4 - Key CNT 5106C 4 March 2010 Instructions: Write your last name, then first initial in upper righthand corner of answer sheet, and write “Quiz 4” centered at top. Answer all questions. 1. What are the main differences between RIP and OSPF? List and explain three. 2. What are the main differences between RIP and BGP4? List and explain two. Answers : 1. a. RIP is a distance-vector protocol (so only neighboring routers exchange their distance vectors) whereas OSPF is a link-state protocol (so all routers exchange the states of their links). b. OSPF provides for hierarchical routing; RIP does not. c. OSPF allows for multiple paths of the same cost; RIP does not.
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Unformatted text preview: d. OSPF includes authentication mechanisms; RIP does not. 2. a. RIP is an interior gateway protocol (IGP – for use within an AS), while BGP is an exterior gateway protocol (EGP – for use between AS's). b. BGP includes path information for each DV entry; RIP does not. c. BGP border gateways select their neighbors by mutual agreement; RIP routers include all routers that are connected to the same subnetworks as neighbors. d. BGP permits border gateways to chose to advertise paths or not; RIP includes all destinations in its DVs. e. BGP allows route selection based on policy settings, not just path cost; RIP only uses path cost....
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This note was uploaded on 01/17/2012 for the course CNT 5106c taught by Professor Helmy during the Spring '09 term at University of Florida.

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