JNCIP-DC Practice Questions - Juniper JNCIP-DC Professional Data Center Exam - JNCIP-DC Practice Questions - Juniper JNCIP-DC Professional Data Center Exam

Question 1

In an EVPN-VXLAN fabric, what is the primary architectural difference between Edge-Routed Bridging (ERB) and Centrally Routed Bridging (CRB)?

ERB routes traffic at the spine layer; CRB routes traffic at the leaf layer ERB performs L3 routing at every leaf (IP gateway at leaf); CRB centralizes L3 routing at the spine/superspine ERB uses symmetric IRB; CRB uses asymmetric IRB exclusively ERB is used only in multi-pod designs; CRB is restricted to single-pod fabrics

Correct Answer:

ERB performs L3 routing at every leaf (IP gateway at leaf); CRB centralizes L3 routing at the spine/superspine

Question 2

What is an anycast gateway in an EVPN-VXLAN fabric, and what problem does it solve?

A gateway that uses BGP anycast routing to distribute traffic across multiple exit points for WAN connectivity A shared IP and MAC address configured identically on multiple leaf switches so that VMs can move between racks without changing their default gateway A dedicated spine node that acts as the single L3 gateway for all VLANs in the fabric A BGP EVPN Route Type 5 prefix that summarizes all host routes into a single prefix advertisement

Correct Answer:

A shared IP and MAC address configured identically on multiple leaf switches so that VMs can move between racks without changing their default gateway

Question 3

In Junos EVPN-VXLAN, what is an Integrated Routing and Bridging (IRB) interface in a bridge domain, and why is it needed?

An IRB is a loopback-style interface used exclusively for VTEP source addressing An IRB is a virtual L3 interface bound to a bridge domain that provides the inter-VLAN routing function without requiring a separate physical routed port An IRB is a dedicated hardware forwarding engine for VXLAN encapsulation and decapsulation An IRB replaces the spine switches in ERB designs by routing traffic directly between VTEPs

Correct Answer:

An IRB is a virtual L3 interface bound to a bridge domain that provides the inter-VLAN routing function without requiring a separate physical routed port

Question 4

A network engineer is designing a VXLAN fabric and needs to decide between VNI-to-VLAN mapping one-to-one vs. many-to-one. Which statement correctly describes these two approaches?

One-to-one maps a single VNI to a single VLAN per leaf; many-to-one maps multiple VNIs to a single VLAN across different leaves One-to-one maps each VLAN to a unique VNI globally; many-to-one maps multiple VLANs to the same VNI — typically used for VXLAN traffic aggregation One-to-one is the only supported mode in Junos; many-to-one is a Cisco NX-OS-specific feature Many-to-one means a single VLAN ID maps to multiple VNIs depending on the spine, which enables spine-based traffic engineering

Correct Answer:

One-to-one maps each VLAN to a unique VNI globally; many-to-one maps multiple VLANs to the same VNI — typically used for VXLAN traffic aggregation

Question 5

In EVPN-VXLAN, what is BUM traffic, and what are the two primary methods for handling it?

BUM stands for Broadcast, Unknown unicast, and Multicast; it is handled via ingress replication (head-end replication) or P2MP multicast underlay BUM stands for Border, Unicast, and Multicast; it is handled via ECMP or LACP bonding on the uplinks BUM traffic is a type of QoS-marked traffic for real-time applications; it is handled via strict priority queuing or WRED BUM stands for Bridged Unicast Multipath; it is handled exclusively by the anycast gateway using proxy-ARP

Correct Answer:

BUM stands for Broadcast, Unknown unicast, and Multicast; it is handled via ingress replication (head-end replication) or P2MP multicast underlay

Question 1

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Prepare with the JNCIP-DC Practice Questions - Juniper JNCIP-DC Professional Data Center Exam practice quiz. This question bank includes 100 questions covering evpn, junos, evpn-vxlan, fabric, and leaf. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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JNCIP-DC Practice Questions - Juniper JNCIP-DC Professional Data Center Exam

This practice set contains 100 questions from the matching question bank and focuses on evpn, junos, evpn-vxlan, fabric, and leaf. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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JNCIP-DC Practice Questions - Juniper JNCIP-DC Professional Data Center Exam

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