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ccna service provider dump pdf.194.1.129.36 1 0 0 0 0 0 0 0 0 1194.1.191.255 1 0 1 1 1 1 1 1Exam Requirements VLSMYou must have a good understanding of IP network subnetting and VLSM in order to create efficient subnets. Keep in mind the benefits of VLSM: efficient addressing, route summarization, and limiting the scope of Layer 3 network problems. You need to know how to perform VLSM, so keep in mind the following 6 steps: 1) find the largest segment; 2) select a subnet mask for this segment; 3) list the subnets created; 4) select one of the subnets and use a different subnet mask in it; 5) list the subnets obtained by further subnetting that subnet; and 6) start over from step 4 if necessary. You may have to complete similar tasks in the exam.Routing SummaryClassless protocols (such as EIGRP, OSPF, RIPv2, IS.IS, and BGP) support VLSM and use route summarization to support # CIDRo classless protocols toprotocols to advertise network numbers and subnet masks in their routing updates. Be sure to keep the benefits of route summarization in mind and understand the routing issues that come with subnet separation.routing issues.The router makes routing decisions based on all 32 bits of the destination IP address: it looks in the routing table for the network number with the most matching bits to the destination IP address. You are likely to encounter a test that asks which route in the routing table you will use to get to a givendestination. Many vendors support equal-overhead load sharing, which allows routers to add multiple paths to the same destination to the routing table and to use different paths to carry data for different protocols. Be sure to practice summarization. Be sure to complete Real-World Exercises 7.1 and 7.2 and other similar exercises, as you may encounter similar exam questions. Don't forget that the exam time is limited, so you must be able to answer such questions in a minute or two. Be sure to practice, practice and practice again!