EIGRP: Enhanced Interior Gateway Routing Protocol

RIP: Routing Information Protocol

OSPF: Open Shortest Path First

VTP: Virtual trunking protocol

VLAN: Virtual Local Area Network

STP: Spanning Tree Protocol

IS-IS: Intermediate System - Intermediate System

MPLS: Multiprotocol Label Switching

BGP: Border Gateway Protocol

Yes it is possible to clear CCIE Certification in 1^st attempt. I have also cleared CCIE in 1^st attempt from Network Bulls in Sep, 2015. One must be dedicated and passionate to get this certification. Even many of my students have passed CCIE R&S Certification in 1^st attempt.

Yes it is possible to clear CCIE Certification in 1^st attempt. I have also cleared CCIE in 1^st attempt from Network Bulls in Sep, 2015. One must be dedicated and passionate to get this certification. Even many of my students have passed CCIE R&S Certification in 1^st attempt.