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Juniper JN0-343 Questions & Answers
JN0-343 Questions & Answers
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Exam Code: JN0-343

Exam Name: Juniper Networks Certified Specialist Enterprise Routing and Switching (JNCIS-ENT)

Vendor: Juniper

No of Questions: 563

Last Updated: May 02, 2017

Certs Covered: JNCIS-ENT

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The Juniper JN0 343 exam is designed for networking professional who have practical experience and knowledge of routing and switching implementation. This exam tests the candidates’ fundamental understanding of routing and switching technologies and related configuration and troubleshooting skills.

Major topics covered in this exam are: Layer 2 Switching and VLANs, Spanning Tree, Layer 2 Security, Protocol Independent Routing, Open Shortest Path First (OSPF), Intermediate System to Intermediate System (IS-IS), Broader Gateway Protocol (BGP), Tunnels, and High Availability.

Exam description:

Why is this exam required?

This exam is appropriate for entry level to intermediate level experienced professionals having experience in implementation of routing and switching. The following job roles are available in completion of this certification:

-          Enterprise Routing and Switching Specialist

-          Network Engineers

-          Network Administrators

Associated exam:

Candidates are required to have knowledge and experience in understanding and implementing routing and switching technologies. There is no associated exam.

Pre requisites:

There is no such prerequisite to attend the exam Juniper JN0 343. However, it is recommended candidates to have experience in implementing routing and switching in an enterprise environment.

Although there are no pre requisites for the exam, it is important to have an experience in implementation of routing and switching. The certification will remain valid for two years.

Objectives of the exam:

The exam is divided into 9 divisions, each division carrying different weights. A summary of these topics is given below:

-          Layer 2 Switching and VLANs

This section tests the candidate’s knowledge on the concepts and functionality of Layer 2 switching for the Junos OS which includes enterprise switching platforms, bridging components and frame processing; concepts and functions of VLANs which includes ports, tagging,  native VLANs and voice VLANs, and inter-VLAN routing and RVI.

-          Spanning Tree

This section tests the candidate’s knowledge and skills in determining the benefits of the Spanning Tree Protocol which includes STP and RSTP concepts, port roles, BPDUs, convergence; implementing STP and RSTP, etc.

-          Layer 2 Security

This section covers topics such as understanding the benefits of several protection and security features including BPDU, different types of port security, storm control; determining the benefits of Layer 2 firewall filters including types of filter; demonstrate understanding of ways to monitor and configure Layer 2 security in terms of protection, port security, storm control, etc.

-          Protocol Independent Routing

This section covers the following topics: determining the functionality of various protocol-independent routing features including load balancing and filter-based forwarding; showing skills regarding ways of monitoring and implementing a number of protocol-independent routing components, etc.

-          Open Shortest Path First (OSPF)

This section covers: identification of concepts and features of OSPF which includes link-state database, router ID, LSA packets, etc.; demonstrating skills of ways to monitor, implement and troubleshoot OSPF using different routing applications and troubleshooting tools.

-          Intermediate System to Intermediate System (IS-IS)

This section covers: identification of features and functions of IS-IS, demonstrating skills on how to configure and troubleshoot IS-IS using various troubleshooting tools, etc.

-          Border Gateway Protocol (BGP)

Topics in this section include: determining features and functions of BGP, knowledge on how to monitor and configure BGP, etc.

-          Tunnels

In this section, candidates are judged on their knowledge of concepts and functionality of IP tunneling.

-          High Availability

This section deals with identification, benefits and applications for high availability in a Junos OS environment and also presentation of skills on how to monitor and configure different components of high availability.

Career prospects:

More IT professionals are now seeking certifications to prove their skills in relevant discipline. By passing JN0-343 exam, the candidate will become Juniper JNCIS certified and can get jobs with better salary, global recognition and better chance of being promoted. This certification distinguishes the candidate from peers and creates huge opportunity for career growth. This certification allows building a strong ground for the It professionals in the IT industry. Companies like HP, Motorola, IBM, Microsoft and Symantec etc hire individuals who have this credential. Professionals who are certified and have experience in this field are more valued than those without the certification.

Juniper Networks certified professionals demonstrate their understanding of latest networking technologies. A recent survey conducted on Juniper certified individuals show that 80% of managers realize that about 40% improvements in productivity has occurred because of hiring Juniper certified professionals. Study results also show that 50% of the professionals have gained performance improvement in multiple areas. This certification opens door to becoming an Enterprise Routing and Switching Specialist.


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