Juniper JNCIS certification track allows you to prove expertise with networking technology in common and Juniper Networks enterprise routing and switching platforms. JNCIS-ENT, the specialist-level certification in the JNCIS certification track, is best suited for seasoned networking professionals with beginner to intermediate understanding of routing and switching implementations in Junos. The Juniper JNCIS-ENT JN0-349 exam validates your fundamental understanding of routing and switching technologies and related platform configuration and troubleshooting skills.