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Certification: JNCIS-ENT
Certification Full Name: Juniper Networks Certified Specialist Enterprise Routing and Switching
Certification Provider: Juniper

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JNCIS-ENT Certification Info

How I passed JNCIS-ENT with minimum effort

JNCIS-ENT (Enterprise Routing and Switching, Specialist) is offered by Juniper Network Company. It has been designed for the qualified networking professionals who have knowledge - on routing & switching in Junos - ranging from the novice to middle-level. This certification verifies the fundamental knowledge of routing & switching technologies, platform configuration & troubleshooting expertise. The certification is provided after passing a written exam under exam code JN0-343 that is monitored by Pearson VUE. JN0-343 has 2-year validity. This course will apply Junos Software: 12.3 and 12.1 for SRX Series Devices.

JNCIS-ENT exam topics include Open Shortest Path First (OSPF), Layer 2 Switching and VLANs, High Avail, Spanning Tree, Tunnels, Layer 2 Security, Border Gateway Protocol (BGP), Protocol Independent Routing and Intermediate System to Intermediate System (IS-IS).

These exam-topics have been designed following the course-contents that are suggested by some advanced-level training courses - such as, JER and JEX - instructed by erudite mentors. I took these training courses to make a good score in the JNCIS-ENT certification. The topics that I had learnt in these courses are stated below:

Junos Intermediate Routing (JIR)

In this 2-day long course, I got instruction on the intermediate-level routing & configuration examples including, protocol-free routing attributes, OSPF, load balancing, IP tunneling, filter-based forwarding, BGP, high availability (HA) attributes, etc. This course taught me about the static, aggregate & generated routes. It also focused on the Martian routes; default list elongation method; routing instances; Layer 3 load balancing, etc. In addition to these, from this course I learnt about the benefits filter-based forwarding; functions and area types of OSPF; role of the designated router; route selection algorithm steps; peering options & default route advertisement rules of BGP; IP tunneling concepts & applications; GRE (generic routing encapsulation) & IP over IP (IP-IP) tunnels; diverse high availability attributes, issues regarding back-up by Junos OS

This course applied SRX Series of Services Gateways of the Juniper Networks for providing the practical knowledge. It costed $1,400.00 or 1400 Training Credits.

Junos Enterprise Switching (JEX)

In this two-day long advanced level course, I got lessons on the intermediate-level knowledge regarding the switching & configuration examples. This course-curriculum also provided me a general idea of switching concepts & operations, virtual LANs, Protocol of Spanning Tree, port & device security features, features of high availability, etc.

Following this course, I learnt about Switched LANs implementation benefits; Transparent bridging ideas & function; Terms & design decisions of switched LANs; Enlistment of enterprise platforms to hold & configuration interfaces of switching the Layer 2; switching table of Ethernet; issues regarding internal routing of VLAN; Access & trunk in the port modes, voice VLAN & native concepts of VLAN; Inter-VLAN routing functions; Application of spanning tree. This course also emphasized on the exam-contents including, STP and RSTP operations, benefits, configuration and monitoring; BPDU, Root & Loop protection features; issues regarding the BPDU, Loop, Root protection; port security; storm control; Firewall filter; EX Series of Ethernet Switches. Besides these topics, I also got knowledge on virtual chassis accompanied with manifold EX4200 switches; etc. issues in this course.

This course applies EX Series of Ethernet Switches of the Juniper Networks for providing the practical knowledge. This course has been designed on the basis of the Junos Operating System Release of 12.2R1.8. It costs $1,400.00 or 1400 Training Credits.

Both the JER and JEX courses have been designed on the basis of the Junos OS Release 12.2R1.9. The facility of hands-on labs enabled me to gain useful experience in configuration & monitoring of the Junos operating system, monitoring device, protocol operations, etc.

Some supplementary resources that aided me to pass the JNCIS-ENT are:

  • Practical experience
  • Junos documentation
  • Junos documentation for EX Series switches

With the help of the above mentioned training and materials, I could answer the entire multiple-choice questions in the stipulated 90-minute, in the final exam. Thus, I could pass the JN0-343 and got the JNCIS-ENT certification with minimum effort.

Kurt Movend, IT Specialist, Sriesm Ltd.

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