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Cisco CCNP ENARSI (300-410) Practice Test & Study Guide

Name: Cisco CCNP ENARSI (300-410) Practice Test
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Everything you need to plan your 300-410 prep: the exam format, what each domain covers, a week-by-week study plan, original practice questions, and what thousands of study-group comments reveal about where candidates slip up.

Last updated September 30, 2026 · By the NotJustExam team

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About the Cisco CCNP ENARSI (300-410) exam

Cisco 300-410 ENARSI (Implementing Cisco Enterprise Advanced Routing and Services) is one of the concentration exams for the CCNP Enterprise certification, and it can also stand alone toward a Cisco Certified Specialist credential. It goes deep on advanced routing and the services that support it, building directly on the routing fundamentals covered in the CCNP core exam (350-401 ENCOR).

ENARSI is aimed at network engineers who already run enterprise routing in production — people responsible for EIGRP and OSPF troubleshooting, BGP policy, MPLS and DMVPN-based WAN designs, and the infrastructure security and services layered around them. It assumes real command-line experience, not just conceptual knowledge of routing protocols.

The exam matters because CCNP Enterprise (core exam plus a concentration like ENARSI) remains one of the most widely recognized proofs of enterprise networking skill. ENARSI specifically signals that you can operate and troubleshoot the advanced routing and WAN technologies that keep a large, multi-site network running.

Cisco CCNP ENARSI (300-410) exam format at a glance

Attribute	Detail (as of 2026, verify on the official page)
Exam code	300-410 ENARSI
Number of questions	Not officially published by Cisco
Question types	Multiple choice, drag-and-drop, and simulation-style items, consistent with other Cisco 300-series exams
Duration	90 minutes
Passing score	Not officially published; Cisco uses a scaled score and does not disclose a fixed passing threshold
Cost	Approximately 300 USD; confirm current pricing before registering, as Cisco adjusts exam fees over time
Languages	English and Japanese
Delivery	Pearson VUE test center; online proctoring availability varies by exam
Validity	Contributes to a Cisco certification valid for 3 years from the date requirements are completed

Cisco CCNP ENARSI (300-410) domains & what they cover

The objectives are organized into four domains. The weightings below reflect Cisco's published exam topics; confirm current figures on the official page.

1.0 Layer 3 Technologies (about 35%) — The largest domain: EIGRP and OSPF troubleshooting (neighbor relationships, authentication, summarization, LSA types), BGP path selection and filtering, and route redistribution or policy-based routing.
2.0 VPN Technologies (about 20%) — MPLS Layer 3 VPN concepts including route distinguishers, route targets, and PE-CE routing, plus DMVPN phases with NHRP and IPsec, and basic GRE/IPsec tunneling.
3.0 Infrastructure Security (about 20%) — Device hardening and Control Plane Policing, AAA with TACACS+/RADIUS, infrastructure access control lists, and IPv6 First Hop Security features like RA Guard and DHCP Guard.
4.0 Infrastructure Services (about 25%) — NTP, device management via SNMP and syslog, DHCP relay and services, NetFlow/Flexible NetFlow and IP SLA, and basic Cisco DNA Center-based network assurance.

How hard is Cisco CCNP ENARSI (300-410)?

ENARSI is widely regarded as one of the more demanding CCNP concentration exams because it is troubleshooting-heavy rather than definition-heavy. You are expected to diagnose why an EIGRP or OSPF adjacency is not forming, why a BGP route is not being selected, or why a DMVPN tunnel is not passing traffic — which requires real command-line fluency, not just knowing what the protocols do.

The Layer 3 Technologies domain is the single biggest hurdle simply because it carries over a third of the exam and blends three routing protocols with redistribution scenarios. VPN Technologies also catches candidates who have read about MPLS and DMVPN but never configured either one, since the exam tests configuration-level detail.

For an engineer already working with enterprise routing day to day, four to six weeks of focused review is a realistic window. Candidates coming straight from CCNP core material without much hands-on routing experience should plan for eight to ten weeks, with substantial lab time.

How to prepare for Cisco CCNP ENARSI (300-410): a study plan

Because the exam is troubleshooting-oriented, a lab-centered plan outperforms pure reading.

Weeks 1–2: Rebuild the routing foundation. Review EIGRP, OSPF, and BGP fundamentals from the CCNP core material, then go a level deeper into authentication, summarization, and filtering for each protocol.
Weeks 3–4: Lab the biggest domain. Build multi-router topologies in a simulator or virtual lab and deliberately break things — misconfigure authentication, create a redistribution loop — so you practice the diagnosis, not just the configuration.
Weeks 5–6: Cover VPN and security technologies. Configure a basic MPLS L3VPN and a DMVPN tunnel end to end, then layer in AAA, infrastructure ACLs, and IPv6 First Hop Security so the Infrastructure Security domain is not purely theoretical.
Final weeks: Drill infrastructure services and review. Practice NTP, SNMP, NetFlow, and IP SLA configuration, then run timed practice sets and revisit whichever domain still feels the weakest.

Treat practice questions as a way to find gaps in your lab experience — if a question exposes something you have never actually configured, go build it in the lab before moving on.

Cisco CCNP ENARSI (300-410) FAQ

How much does the 300-410 exam cost?

Cisco 300-series concentration exams have historically cost around 300 USD, but Cisco periodically adjusts pricing by region. Confirm the current fee on the official Cisco certification exam page before registering.

How long is the certification valid?

ENARSI contributes toward CCNP Enterprise, which is valid for 3 years from the date you complete the certification requirements. You recertify by passing a current exam or accumulating continuing-education credits before it expires.

Are there prerequisites?

Cisco does not enforce a hard prerequisite for 300-410 itself, but it is designed to follow the CCNP core exam (350-401 ENCOR) and assumes that level of routing and enterprise networking knowledge.

What is the retake policy if I fail?

Cisco requires a waiting period between attempts that increases with each subsequent failure, and you pay the exam fee again each time. Check Cisco's current retake policy before scheduling a second attempt.

Is the exam taken online or at a test center?

300-410 is primarily delivered at Pearson VUE test centers. Online proctoring availability for Cisco exams varies, so confirm delivery options for your region on the official scheduling page.

Is ENARSI worth it for a networking career?

For engineers who work with enterprise routing and WAN technologies, generally yes. It is a recognized way to demonstrate advanced routing and troubleshooting skill, and it counts directly toward the widely respected CCNP Enterprise certification.

Free 300-410 practice questions

5 original questions written for NotJustExam from the public 300-410 exam objectives and independently answer-checked. Try answering before you open the explanation.

Question 1

Two routers running EIGRP for IPv4 fail to form a neighbor relationship. Both interfaces are up, IP addressing is correct, and no access lists are applied. Which mismatch is the most likely cause?

The routers are configured with different autonomous system numbers under EIGRP
The routers are using different EIGRP metric weights for bandwidth and delay
The routers have different EIGRP administrative distances configured
The routers are advertising different summary routes

Show answer & explanation

Answer: A. EIGRP neighbors must be configured with the same autonomous system number (or the same VRF and address-family process) to form an adjacency at all; a mismatch here prevents the neighbor relationship from ever coming up. Differing metric weights (B) can cause suboptimal path selection or route disagreement, but routers can still become neighbors with mismatched K-values only until EIGRP detects the mismatch and refuses the adjacency for that specific reason, which is a distinct symptom from a basic AS number mismatch.

Source: official documentation

Question 2

A network design requires direct spoke-to-spoke tunnels to be built dynamically without traffic first passing through the hub, and it also requires each spoke to use a summarized route learned from the hub rather than the hub's full routing table. Which DMVPN phase best fits this design?

Phase 1
Phase 2
Phase 3
A GRE-only design with no NHRP

Show answer & explanation

Answer: C. DMVPN Phase 3 supports dynamic spoke-to-spoke tunnels and allows spokes to be configured with summarized or default routes from the hub, since the hub uses NHRP redirect and traffic-indication messages to trigger spoke-to-spoke shortcuts regardless of route specificity. Phase 2 (B) also supports dynamic spoke-to-spoke tunnels, but it requires spokes to carry more specific (non-summarized) routes toward other spokes for the NHRP resolution to work correctly, which does not fit the summarized-route requirement.

Source: official documentation

Question 3

An administrator wants to protect a router's route processor from being overwhelmed by excessive ICMP and Telnet traffic aimed directly at the router, while still allowing that traffic to be forwarded normally through the router for other destinations. Which feature should be configured?

An inbound access control list applied to every interface
Control Plane Policing (CoPP)
Unicast Reverse Path Forwarding (uRPF)
NetFlow export filtering

Show answer & explanation

Answer: B. CoPP applies policy specifically to traffic destined for the router's own control plane (the route processor), allowing rate-limiting or dropping of excessive traffic aimed at the router without affecting traffic that is merely transiting through it. A standard inbound ACL on every interface (A) would need to distinguish transit traffic from traffic destined to the router on every interface individually and does not provide the same centralized, control-plane-specific rate-limiting that CoPP does.

Question 4

A network team wants to proactively measure end-to-end jitter, latency, and packet loss on a path between two routers, independent of actual user traffic, and generate alerts when thresholds are exceeded. Which feature should be configured?

Flexible NetFlow
SNMP polling
Syslog with debug-level logging
IP SLA

Show answer & explanation

Answer: D. IP SLA generates synthetic active traffic between devices specifically to measure metrics like jitter, latency, and packet loss, and it can trigger actions or alerts when configured thresholds are crossed, matching the proactive measurement requirement. Flexible NetFlow (A) analyzes characteristics of actual traffic flows that are already traversing the network, rather than generating independent synthetic probes to measure path performance before a problem affects real traffic.

Source: official documentation

Question 5

A network administrator wants to prevent a totally stubby area from receiving external Type 5 and interarea Type 3 LSAs, while still allowing the ABR to inject a single default route into the area. Which OSPF area type should be configured?

Standard area
Stub area
Totally stubby area
Not-so-stubby area (NSSA)

Show answer & explanation

Answer: C. A totally stubby area blocks both Type 3 (interarea) and Type 5 (external) LSAs from entering the area, and the ABR instead advertises only a default route, which matches the requirement exactly. A regular stub area (B) still blocks Type 5 LSAs but continues to receive Type 3 interarea summary routes, so it does not fully satisfy the requirement.

Source: official documentation

What 5,861 study-group comments reveal about 300-410

We summarised the public study-group discussion behind every question in our 300-410 bank and compared it with an independent AI review. Where they disagree, a posted answer key alone is not enough to trust — which is why every question in the full bank shows the community vote, a discussion summary and a reasoned explanation side by side.

619practice questions reviewed

5,861study-group comments summarised from Q2 2020 – Q3 2025

4%of questions where the answer commonly posted online is disputed

22%of single-answer questions where the community vote is split

The 300-410 traps that come up most

AS-path prepending is applied outbound to shape inbound traffic — Prepending your AS number onto outbound route advertisements makes that path look longer to other autonomous systems, influencing how they send traffic back to you, not how you choose outbound paths.
BFD's main value is sub-second failure detection — Bidirectional Forwarding Detection quickly detects link and forwarding-path failures in well under a second, letting routing protocols react far faster than their own default hello and dead timers allow.
Route Distinguishers must be unique per VRF — Even though a Route Distinguisher is only locally significant and not carried the way a Route Target is, no two VRFs can share the same RD value on a router.
OSPF priority 0 removes a router from DR/BDR elections — Setting OSPF interface priority to zero does not just lower a router's chance of becoming DR or BDR — it excludes that router from the election entirely.
BGP Weight is local and never advertised to peers — Weight only influences path selection on the router where it is configured and is not carried in updates to neighbors, unlike AS-path and local preference which do shape peer behavior.

Inside the full 300-410 practice bank

619 practice questions in an interactive web app, plus a printable PDF
The community-voted answer and a summary of the study-group discussion for each question
A step-by-step AI explanation of why the right answer is right — and why the others are not
One-time $9.99, lifetime access, no subscription

Try the free 10-question demo →Get all 619 questions — $9.99

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Independent study material. NotJustExam is not affiliated with, endorsed by, or sponsored by any certification body; all certification names, trademarks and exam codes belong to their owners and are used for descriptive purposes only. The sample questions on this page are original items written for NotJustExam from the publicly available exam objectives. Exam facts change — always confirm details on the official exam page before you register.