Which two statements are correct about the EVPN-VXLAN control plane? (Choose two.)
Answer(s): B,C
In an EVPN-VXLAN fabric, the control plane operates over BGP EVPN and is responsible for distributing endpoint reachability information (MAC and IP) among VTEPs. The data plane, by contrast, performs encapsulation and forwarding."The EVPN control plane uses BGP to exchange MAC and IP address reachability information between VTEPs, enabling efficient forwarding and loop prevention without relying on flood-and- learn behavior."Option A: Incorrect -- encapsulation occurs in the data plane, not the control plane. Option B: Correct -- the control plane distributes MAC-to-VTEP mappings. Option C: Correct -- the control plane also distributes IP-to-MAC associations (Type 2 and Type 5 EVPN routes).Option D: Incorrect -- the control plane does not alter packet headers.
Juniper Mist AI for Wired EVPN-VXLAN OverviewJuniper Validated Design EVPN Control and Data Plane Operation Junos OS EVPN-VXLAN Implementation Guide
Which service level expectation (SLE) metric measures congestion on the uplink interface of a switch?
Answer(s): B
Juniper Mist's Wired Assurance includes multiple SLE metrics that monitor the health and performance of wired connections. One of these is Asymmetric Uplink, which measures uplink congestion or imbalance between the transmit (TX) and receive (RX) rates on the switch uplink interfaces."The Asymmetric Uplink SLE monitors congestion and traffic imbalance on the switch's uplink ports. It identifies when the uplink bandwidth utilization or transmit/receive rates are inconsistent with expected patterns, indicating congestion or flow asymmetry." Option A (Successful Connect): Tracks client connection success rate, not uplink congestion. Option C (Throughput): Relates to end-to-end data transfer rate, not specifically uplink congestion. Option D (Switch Health): Measures hardware, software, and PoE health, not link congestion. Option B (Asymmetric Uplink): Correct -- this SLE directly reflects uplink interface congestion or imbalance.
Juniper Mist AI for Wired Wired SLE Metrics Overview Juniper Mist AI for Wired Asymmetric Uplink SLE DescriptionJuniper Mist Documentation Troubleshooting with SLE Analytics ===========
Which API is used within the Juniper Mist solution?
Answer(s): A
Juniper Mist Cloud uses an open RESTful API framework for integration, automation, and programmability across all Mist services, including Wired Assurance, Marvis, and AI-driven automation."All Mist Cloud services are built on a 100% open REST API framework, allowing customers to automate configuration, monitoring, and troubleshooting through standard REST calls." The REST API exchanges data in JSON format, but the API type itself is REST, not JSON. Option A (REST): Correct -- Mist services expose 100% REST-based APIs. Option B (SOAP): Incorrect -- SOAP is an older XML-based protocol not used in Mist. Option C (JSON): Incorrect -- JSON is the data format, not the API type. Option D (RPC): Incorrect -- not used in the Mist Cloud architecture.
Juniper Mist AI for Wired API OverviewJuniper Mist API Developer DocumentationJuniper Mist AI Cloud Automation and Integration Guide
You must move from a campus fabric core-distribution centrally-routed bridging (CRB) network to an edge-routed bridging (ERB) network.In this scenario, where does the gateway for the network move?
Answer(s): C
In Juniper Mist campus fabric architectures, the location of the Layer 3 gateway (IRB interface)differentiates centrally-routed bridging (CRB) from edge-routed bridging (ERB):In CRB, the gateway resides at the core layer -- routing occurs centrally, and access/distribution layers perform Layer 2 bridging.In ERB, the gateway moves to the edge (distribution layer), enabling routing to occur closer to endpoints, improving performance and scalability."In a centrally-routed bridging (CRB) topology, Layer 3 gateways reside at the core. When transitioning to an edge-routed bridging (ERB) design, the Layer 3 gateways are moved to the distribution layer, closer to the access switches and clients." Therefore, when moving from a core-distribution CRB to an ERB model, the gateway moves from the distribution to the access layer in campus terms (edge = access). Option A: Incorrect -- ERB gateways are not at the distribution layer only.Option B: Incorrect -- opposite direction.Option C: Correct -- the gateway moves from distribution to access (edge).Option D: Incorrect -- this describes CRB, not ERB.
Juniper Mist AI for Wired Campus Fabric Architecture Models (CRB vs ERB) Juniper Validated Design Campus Fabric EVPN-VXLAN Gateway Placement Junos OS EVPN-VXLAN Deployment Guide
What are the two ways to forward BUM traffic when using EVPN? (Choose two.)
Answer(s): C,D
In EVPN-VXLAN, BUM (Broadcast, Unknown unicast, and Multicast) traffic is handled differently than unicast traffic. EVPN provides two main forwarding mechanisms to distribute BUM traffic between VTEPs (VXLAN Tunnel Endpoints):"BUM traffic in EVPN-VXLAN fabrics is replicated using either ingress replication or underlay multicast (PIM-based). Both methods ensure that broadcast and unknown unicast frames reach all remote VTEPs within the same VXLAN segment."Option A: Incorrect -- static routes are unrelated to BUM forwarding. Option B: Incorrect -- BGP is the control plane, not a data-plane forwarding method. Option C: Correct -- Ingress replication replicates BUM packets to all remote VTEPs in the same VNI using unicast tunnels.Option D: Correct -- Underlay replication (multicast) uses multicast groups in the IP underlay to distribute BUM frames efficiently.
Juniper Mist AI for Wired EVPN-VXLAN Forwarding Architecture Junos OS EVPN-VXLAN Deployment and Operations GuideJuniper Validated Design EVPN-VXLAN Control and Data Plane Behavior
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