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Exam JN0-648 is necessary for getting the Enterprise Routing and Switching, Professional (JNCIP-ENT) certification that validates your skills related to advanced routing technologies, platform configuration, and troubleshooting. This certification exam is provided through Juniper Networks and is intended for networking specialists who are highly experienced in their field. As clear from the name, the JNCIP-ENT and its affiliated test form the professional level in the Enterprise Routing and Switching certification track. With this evaluation, individuals can acquire strong leadership skills to manage tough projects, which utilize sophisticated routing technologies. So, this article provides an easy-to-digest overview of the JNCIP-ENT exam, certification, and resources.

Key Points of JNCIP-ENT Certification and JN0-648 Exam

Before you sit for JN0-648 to attain the JNCIP-ENT certificate, you need to achieve the prerequisite certification, that is the JNCIS-ENT. This is an exam with 65 multiple-choice questions, administered for 2 hours. As it is an MCQ-based test, you can know your pass/fail status right after you complete it. Also, you need to register for this validation with Pearson VUE. So, create an account on the Pearson VUE website, choose a test center of your choice and then select the appropriate evaluation from the exam list. For those who have an existing CertManager ID, you can use that to register for your exam.

JN0-648 Topics

The Juniper JN0-648 exam covers several topics about networking technologies including the following:

• Concepts and functionality of IGPs (Interior Gateway Protocols);
• Teams and functionality of BGP;
• Configuring and troubleshooting IP Multicast;
• Components of Ethernet Switching and Spanning Tree;
• Features of Layer 2 Authentication and Access Control;
• Class of Service (CoS);
• The functionality of Junos EVPN.

Recertification of JNCIP-ENT

Once certified, the JNCIP-ENT certification is valid for three years. You must recertify within the active period (three years) otherwise your designation will expire and you will need to re-earn the entire certification track, including the lower-level certificates as these are the prerequisites for more advanced validations such as the JNCIP-ENT certification. Generally, you can recertify by testing or by attending relevant courses. If need be, you can view the status of your certification by using CertManager.

Resources to Ace Your JN0-648 Exam

All in all, there are two official courses offered by Juniper Networks which are recommended to train candidates to successfully pass JN0-648 exam:

• Advanced Junos Enterprise Routing (AJER)

  This is a five-day class that covers useful concepts of Layer 3 elements in enterprise networks. Plus, you will learn about BGP, multicast, OSPF, the class of service, and EVPN-VXLAN. By taking this training, your troubleshooting skills will also be enriched. To add more, this course utilizes some demonstrative means and practical labs that help students gain great experience with handling the Junos OS and operations for protocols. As prerequisites, you need to have a fundamental knowledge of networking and the model for Open Systems Interconnection (OSI), as well as the TCP/IP suite of protocols. Work experience with core routing facets is also needed. You should also have taken the Introduction to the Junos Operating System (IJOS) and Junos Intermediate Routing (JIR) courses.

• Advanced Junos Enterprise Switching (AJEX)

  This two-day course details such notions as VLAN, MSTP, VSTP, Layer 2 networks, IP telephony features, CoS, and handling tools which use the EX Series Ethernet Switches. Before taking it, you need to have a fundamental understanding of the OSI reference model, and the TCP/IP protocol suite. What is more, prerequisite courses include Junos Operating System (IJOS) and Junos Enterprise Switching (JEX). To put it simply, this class covers various Juniper products, Switching, EX Series, and Junos OS and is available on the vendor’s site as on-demand training that will cost you $1900.

Moreover, the following books available on Amazon provide useful tips to face the real JN0-648 exam:

• A Practical Guide to Junos Routing and Certification by P. Southwick, D. Marschke, and H. Reynolds

  This is a great study guide for any of the Juniper Networks enterprise routing certification exams. This book, in particular, covers Junos flow-based security services that use MX, SRX, EX devices, and their features. Plus, you will get an insight into practical solutions that would greatly improve your troubleshooting skills in the enterprise sector. Some of the topics that are covered in this manual include Juniper design for router lineup in enterprises (M-series, MX Mid-Range series, and SRX), troubleshooting of the Juno interfaces, IGP, and BGP routing, Layer 2, IP Class of Service, and IP Multicast.

• A Practical Guide to Junos Switches and Certification by H. Reynolds and D. Marschke

  This is the first and only book covering the current EX Ethernet-switching product by Juniper Networks. With the help of such material, you will be introduced to ASIC design, the EX platform, and Junos Software. Furthermore, this book is a great tool as a study guide for certifications in the Juniper Enterprise tracks. Test cases, case studies as well as use cases, and tangential answers for problems will be included in such a guide. Topics covered here include VLANs, inter-VLAN routing, routing and firewall filters, the protocol for the spanning tree, the snooping for DHCP, VLAN voice, and more.

• Day One: Using Ethernet VPNs for Data Center Interconnect by Victor Ganjian

  This manual is a great option to learn more about EVPNs in a real-life setting (interconnected data centers), which accounts for an exam domain in JN0-648 exam. In addition, you will learn about adopting the EVPN technology and its concepts in a digestible manner. Sachin Natu, who is the Director of Product Management at Juniper Networks said that "this is a must-read for all engineers looking to learn and deploy EVPN technologies."

Conclusion

The JNCIP-ENT certification exam is an ideal qualification for networking specialists hoping to further advance their careers in routing technologies. Preparation for this certification involves rigorous practice and knowledge of technical skills that would provide you with the confidence to handle large-scale team projects. Given that there are plenty of preparatory resources available, passing JN0-648 exam successfully is quite likely if you do put in some work. All in all, the Enterprise Routing and Switching Professional designation will help you gain advanced career opportunities and job prospects.

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