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Concise, expert written overviews of CCIE, CCNP, CCVP, and CCNA blueprint topics you must master to pass Cisco's exams. |
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Sets of challenging CCIE, CCNP, CCVP, and CCNA certification
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Router applications that help you prepare for the router simulation questions on Cisco's CCIE, CCNP, CCVP, and CCNA exams. |
Full-length practice tests that cover all the topics included on Cisco's CCIE, CCNP, and CCNA exam blueprints. |
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Create your own personal CCIE or CCNA Study Plan, and try Certification Zone for free! |
Downloadable audio lessons that address topics you must master to become Cisco certified. |
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OSPF I: OSPF in Single Areas: Learning the Protocol
This tutorial focuses on Open Shortest Path First (OSPF) in a single area. OSPF is a modern interior routing protocol, which uses a link state algorithm for its single-area routing. The OSPF dynamic interior routing protocol is faster, more accurate, and more scalable than its predecessors, RIPv1 and IGRP. Especially with respect to scaling, however, many of its strengths do not show up until large numbers of routers, in a hierarchy of areas, are involved. With small networks, the benefits of OSPF include fast convergence, multivendor compatibility, and CIDR/VLSM support.
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