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How to RENEW your CCNA/CCNP for FREE!!!

If you are a Network Engineer, Chances are you are CCNA certified. As we all know Cisco CCNA is root of every Network Engineer's...

Interview Questions – BGP path selection, route filtering, attributes, messages, troubleshooting.

If we have two routers connected to same ISP, which path will be selected as primary and on which parameter if all the attributes...

Interview Questions: OSPF area types, router types , network types.

Why area 0 is called backbone area?How does summarization work in OSPF in case have A1-A0-A2?Can we connect a router which is not...

Interview Questions – OSPF DR/BDR

How is DR elected in an network and how can others know who is DR, which specific address are used?On which network DR/BDR is...

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