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100+ Free Arista ACE Specialist - WAN Routing Practice Questions

Pass your Arista ACE Specialist - WAN Routing (AN-RT-MP01 MPLS Core) exam on the first try — instant access, no signup required.

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In an L3VPN, what label is typically the inner (VPN) label imposed by the ingress PE?

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B
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2026 Statistics

Key Facts: Arista ACE Specialist - WAN Routing Exam

$295

Exam Fee

Per AN-RT-MP01 attempt

4 hours

Exam Time

Hands-on practical lab

Honorlock

Proctor

Online proctored

AN-RT-MP01

Sub-track

MPLS Core (Enterprise + Edge TBD)

100

Free MCQs

Conceptual prep for the lab

RFC 4364 + 8402

Core Standards

L3VPN and Segment Routing

The Arista ACE Specialist - WAN Routing certification (AN-RT-MP01 MPLS Core) is a 4-hour hands-on practical lab delivered via Honorlock online proctoring with a $295 fee. As of 2026 only the MPLS Core sub-track (AN-RT-MP01) is released; the Enterprise Routing and Edge Routing sub-tracks are still TBD. The exam validates Arista EOS skills in MPLS core (LDP, label forwarding, PHP), Segment Routing (RFC 8402, SR-TE, Arista Proxy Sets, TI-LFA), L3VPN with MP-BGP (VPNv4/VPNv6, RD/RT, allowas-in, as-override, SoO, Inter-AS Option A/B/C), and L3VPN advanced services (overlapping VPNs, hub-spoke, shared-services, managed-services). Arista does not publicly disclose the passing score; preparation centers on hands-on labs on 7280R/7500R/7800R3-class platforms.

Sample Arista ACE Specialist - WAN Routing Practice Questions

Try these sample questions to test your Arista ACE Specialist - WAN Routing exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which protocol does MPLS LDP use to discover neighbors on a multi-access link?
A.TCP unicast on port 646
B.UDP multicast hellos to 224.0.0.2 on port 646
C.OSPF Type 9 Opaque LSA
D.BGP labeled-unicast updates
Explanation: LDP basic discovery uses UDP hello packets sent to the all-routers multicast group 224.0.0.2 on UDP port 646. After hello exchange, peers establish a TCP session on port 646 for label distribution.
2On Arista EOS, which command enables MPLS forwarding globally?
A.mpls enable
B.mpls ip
C.ip mpls forward
D.feature mpls
Explanation: Arista EOS uses 'mpls ip' to enable MPLS IP forwarding (label imposition/disposition for IP traffic). The command is configured at the global level and on interfaces participating in MPLS.
3What does the term FEC mean in MPLS?
A.Forward Error Correction
B.Forwarding Equivalence Class — a set of packets treated identically for forwarding
C.Frame Encapsulation Code
D.Fast Ethernet Channel
Explanation: An FEC (Forwarding Equivalence Class) is the set of packets that an LSR forwards in the same way (same next-hop, same label operations). LDP binds a label to each FEC; in IP-MPLS the FEC is typically an IPv4 prefix.
4Which MPLS label value indicates 'Implicit Null' and triggers Penultimate Hop Popping (PHP)?
A.0
B.1
C.3
D.7
Explanation: Label value 3 is the IANA-reserved Implicit Null. When advertised by the egress LSR for a FEC, the penultimate router pops the label before forwarding so the egress can do a single IP lookup instead of two lookups.
5Which label value is Explicit Null for IPv4?
A.0
B.2
C.3
D.16
Explanation: Label value 0 is the IPv4 Explicit Null label. It preserves the MPLS header (so QoS/EXP bits survive to the egress) while telling the egress to pop and perform an IP lookup. Label 2 is the IPv6 Explicit Null.
6Which Arista platform series is positioned as the high-scale MPLS WAN routing PE/P platform?
A.7050X3
B.7280R/7500R/7800R3
C.720XP campus
D.7060X5
Explanation: The Arista 7280R, 7500R, and 7800R3 series use Jericho/Jericho2/Jericho2c+ silicon with deep buffers and large LFIB scale, making them the WAN/MPLS-focused platforms. They support MPLS, Segment Routing, L3VPN, and EVPN at carrier scale.
7What is the action performed on a transit MPLS label by an intermediate LSR?
A.Push
B.Swap
C.Pop
D.Imposition
Explanation: An intermediate (transit) LSR performs a label SWAP — replacing the incoming label with the outgoing label learned from the next-hop's label binding. The ingress LSR pushes (imposes) the label; the egress (or PHP penultimate) performs the pop.
8Which command on Arista EOS displays the LDP neighbor adjacency table?
A.show mpls ldp neighbor
B.show ldp adjacency
C.show ip mpls ldp peers
D.show mpls peers
Explanation: 'show mpls ldp neighbor' (often abbreviated 'show mpls ldp nei') lists LDP peers, their state (operational), session source/transport address, and uptime. It is the standard EOS command to verify LDP session health.
9What problem does LDP-IGP synchronization solve?
A.Encrypts LDP session traffic
B.Prevents IGP from using a link before LDP labels are exchanged, which would cause black-holing of MPLS traffic
C.Synchronizes router clocks
D.Reduces label table size
Explanation: After a link comes up, the IGP converges quickly while LDP must build its TCP session and exchange label bindings. Without sync, IGP would steer MPLS traffic onto a link that has no labels yet, dropping it. LDP-IGP sync makes the IGP advertise max-metric until LDP is up.
10What is the purpose of LDP Session Protection?
A.Encrypts the LDP session
B.Maintains the LDP session via a targeted hello over an alternate path so labels survive a transient link failure
C.Authenticates the BGP session
D.Increases the LDP hello timer
Explanation: LDP Session Protection (RFC 5443-style behavior) sets up targeted LDP hellos between peers so the LDP session is not torn down when the directly-connected link flaps. This preserves label bindings and speeds reconvergence.

About the Arista ACE Specialist - WAN Routing Exam

The Arista ACE Specialist - WAN Routing track validates specialist-level skills configuring and operating Arista EOS service-provider-style WAN networks. The currently released sub-track AN-RT-MP01 (MPLS Core) tests MPLS forwarding, LDP, Segment Routing (including SR-TE and Arista Proxy Sets), L3VPN with MP-BGP (VPNv4/VPNv6, RD/RT, Inter-AS Option A/B/C), and L3VPN advanced services (overlapping VPNs, shared services, managed services). The exam is a 4-hour practical lab delivered through Honorlock on Arista 7280R/7500R/7800R3-class platforms.

Assessment

Currently only the MPLS Core sub-track (AN-RT-MP01) is released; Enterprise Routing and Edge Routing sub-tracks are TBD. The released exam is delivered as a 4-hour hands-on practical lab via Honorlock online proctoring covering MPLS core, Segment Routing, L3VPN/MP-BGP, and L3VPN advanced services on Arista EOS

Time Limit

4 hours

Passing Score

Not publicly disclosed by Arista

Exam Fee

$295 (Arista / Honorlock online proctored)

Arista ACE Specialist - WAN Routing Exam Content Outline

25%

MPLS Core Fundamentals

MPLS architecture (RFC 3031), LDP (UDP/TCP 646), label distribution, FEC, push/swap/pop, PHP (label 3 implicit-null, label 0 explicit-null), label range and Arista defaults (static 16-15999, dynamic 16000-1048575), LDP-IGP sync, session protection, graceful restart, 7280R/7500R/7800R3 platforms, EOS show commands

25%

Segment Routing

RFC 8402 SR architecture, Prefix/Node/Adj/Anycast/Binding SIDs, SRGB (default 900000-965535) and SRLB, OSPF Type 10 Opaque LSAs and IS-IS TLV 22/135/242 SR sub-TLVs, TI-LFA fast reroute, SR-TE policies (color, endpoint, candidate paths, segment lists), Arista SR-TE Proxy Sets, automated steering via color community, per-flow steering, Flex-Algo (RFC 9350), BGP-LU (AFI 1 SAFI 4), PCEP, BGP-LS, SRv6 awareness

25%

L3VPN / MP-BGP

RFC 4364 L3VPN, MP-BGP (RFC 4760) VPNv4 (AFI 1 SAFI 128) and VPNv6 (AFI 2 SAFI 128), 8-byte RD (Type 0/1/2), Route Targets, per-VRF/per-prefix label allocation, PE-CE BGP with common ASN (allowas-in, as-override, SoO), Inter-AS Option A/B/C, 6PE/6VPE, route reflectors, EOS show commands (show ip bgp vpnv4 unicast, show ip route vrf)

25%

L3VPN Advanced Services

Overlapping VPN/extranet via selective RT, hub-spoke with asymmetric RTs, shared-services VPN, managed-services VPN, INET-VRF Internet access, Carrier Supporting Carrier (CSC) with BGP-LU, VRF route leaking and NAT for overlapping prefixes, SR-MPLS Inter-AS Option C, brownfield SR/LDP coexistence

How to Pass the Arista ACE Specialist - WAN Routing Exam

What You Need to Know

  • Passing score: Not publicly disclosed by Arista
  • Assessment: Currently only the MPLS Core sub-track (AN-RT-MP01) is released; Enterprise Routing and Edge Routing sub-tracks are TBD. The released exam is delivered as a 4-hour hands-on practical lab via Honorlock online proctoring covering MPLS core, Segment Routing, L3VPN/MP-BGP, and L3VPN advanced services on Arista EOS
  • Time limit: 4 hours
  • Exam fee: $295

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Arista ACE Specialist - WAN Routing Study Tips from Top Performers

1Practice on real or virtual Arista EOS (vEOS/cEOS) — the exam is a 4-hour hands-on practical, not multiple choice, so muscle memory with EOS commands matters
2Memorize MPLS reserved labels (0=IPv4 Explicit Null, 2=IPv6 Explicit Null, 3=Implicit Null/PHP, 1=Router Alert) and Arista label ranges (static 16-15999, dynamic 16000-1048575, default SRGB 900000-965535)
3Drill Inter-AS L3VPN: Option A (back-to-back VRF), Option B (single-hop MP-eBGP VPNv4 between ASBRs), Option C (BGP-LU between ASBRs plus end-to-end multihop MP-eBGP between RR/PEs)
4Master PE-CE BGP edge cases: allowas-in (loop accept), as-override (path rewrite), and SoO (loop prevention with as-override) — they are heavily tested
5Build muscle for SR-TE: identify policies by (color, endpoint), use automated steering via the color extended community, and understand when an Arista SR-TE Proxy Set simplifies a segment list versus an explicit Adj-SID list
6Verify everything with EOS show commands: show mpls ldp neighbor, show mpls forwarding, show mpls ldp bindings, show isis segment-routing, show ip ospf segment-routing-mpls, show ip bgp vpnv4 unicast, show ip route vrf

Frequently Asked Questions

What is the Arista ACE Specialist - WAN Routing (AN-RT-MP01) exam?

AN-RT-MP01 is the MPLS Core sub-track of the Arista ACE Specialist WAN Routing certification. It is a 4-hour hands-on practical lab delivered via Honorlock online proctoring that validates skills with MPLS core, LDP, Segment Routing (including SR-TE and Arista Proxy Sets), L3VPN with MP-BGP, and L3VPN advanced services on Arista EOS platforms such as the 7280R, 7500R, and 7800R3. The Enterprise Routing and Edge Routing sub-tracks of the WAN Routing track are not yet released.

How much does the Arista WAN Routing exam cost?

The AN-RT-MP01 exam costs $295 per attempt and is delivered through Honorlock online proctoring. Pricing is set by Arista; check the Arista certification page for the most current fee, retake terms, and any partner discounts that may apply to your organization.

What is the format of the AN-RT-MP01 exam?

AN-RT-MP01 is a 4-hour hands-on practical lab — not a multiple-choice test. Candidates configure and verify scenarios on Arista EOS covering MPLS LDP, Segment Routing, L3VPN with MP-BGP, and advanced L3VPN services (overlapping/shared/managed). These 100 free MCQs are designed to drill the underlying concepts before you sit the lab.

What topics are on the Arista WAN Routing MPLS Core sub-track?

The MPLS Core sub-track covers MPLS forwarding, LDP discovery and session setup, label operations, PHP, LDP-IGP synchronization, LDP session protection and graceful restart, RFC 8402 Segment Routing (SR-MPLS), SRGB/SRLB, IS-IS and OSPF SR extensions, TI-LFA, SR-TE policies and Arista Proxy Sets, BGP-LU, MP-BGP L3VPN with VPNv4/VPNv6, RD/RT, PE-CE BGP, Inter-AS Option A/B/C, and L3VPN advanced services (overlapping/shared/managed).

What Arista platforms should I study for AN-RT-MP01?

Focus on the deep-buffer WAN platforms: Arista 7280R3 (fixed), 7500R/7500R3 (modular), and 7800R3 (modular) — all built on Jericho/Jericho2/Jericho2c+ silicon with the FIB/LFIB scale and SR/MPLS feature set used in service-provider WANs. Lab access via vEOS/cEOS is highly recommended for hands-on practice.

Is the passing score published by Arista?

Arista does not publicly disclose the passing score for AN-RT-MP01. Because the exam is a practical lab graded on completed/verified tasks, prepare by mastering each task type end-to-end (configure plus verify with show commands) rather than aiming for a target percentage.

How should I prepare for the AN-RT-MP01 practical lab?

Build a vEOS or cEOS lab and practice end-to-end MPLS/L3VPN scenarios: bring up LDP, verify label bindings, configure SR-MPLS in IS-IS or OSPF, build SR-TE policies with Proxy Sets and color-based automated steering, build VPNv4 and VPNv6 L3VPNs with PE-CE BGP, and implement overlapping/shared/managed VPN designs. Use Arista's official WAN Routing track datasheet and EOS documentation, and validate concepts with these 100 MCQs.