Implementing Cisco Enterprise Advanced Routing and Services (300‑410 ENARSI) Practice Exams
About the Cisco 300-410 ENARSI exam
Exam at a glance
Professional-tier Concentration. The most popular Concentration exam for CCNP Enterprise, paired with 350-401 ENCOR Core. Roughly 55-65 questions in 90 min, scaled passing score (Cisco does not publish a cut score), $300 USD. Valid 3 years with Continuing Education credits as a recertification path.
Domain weighting
- Layer 3 Technologies — 35%
- VPN Technologies — 20%
- Infrastructure Security — 20%
- Infrastructure Services — 25%
Where ENARSI fits in CCNP Enterprise
CCNP Enterprise = 350-401 ENCOR (Core) + one Concentration. ENARSI is the routing-focused Concentration — the standard pick for engineers whose day job is BGP/OSPF/EIGRP, route policy, and enterprise WAN. Other Concentrations cover SD-WAN (300-415 ENSDWI), design (300-420 ENSLD), wireless (300-425 / 300-430), and automation (300-435 ENAUTO).
Prerequisites
Cisco does not enforce formal prerequisites for 300-410, but the exam assumes solid CCNA-level routing & switching knowledge plus the foundation from 350-401 ENCOR. Cisco recommends three to five years of enterprise networking experience. Most candidates pass ENCOR first and then take ENARSI as the routing Concentration to complete CCNP Enterprise.
Why take this certification
- Routing-engineer standard. ENARSI is the most popular CCNP Enterprise Concentration because its content maps directly to enterprise network-engineering work — BGP at the edge, OSPF/EIGRP in the campus and WAN, route redistribution between protocols.
- Two badges for one exam. Passing 300-410 simultaneously earns the Cisco Certified Specialist – Enterprise Advanced Infrastructure Implementation badge and contributes the Concentration credit toward CCNP Enterprise.
- Strong salary signal. CCNP Enterprise holders earn an average of $115,000-$135,000 USD per year in the United States, with experienced senior network engineers and network architects reaching $145,000+ in metropolitan markets.
- Foundation for CCIE Enterprise Infrastructure. The advanced routing depth tested in ENARSI is exactly the muscle you need to begin preparing for the CCIE Enterprise Infrastructure lab exam.
What you'll learn in the 300-410 ENARSI exam
ENARSI is dominated by routing protocols. Expect deep, scenario-based questions on OSPF, EIGRP, and BGP — far beyond CCNA depth — plus a meaningful chunk on VPN technologies, control-plane security, and infrastructure services that real enterprise networks rely on.
Advanced OSPFv2 and OSPFv3
- LSA types (1-7) and how they propagate through area types.
- Area types — standard, stub, totally stubby, NSSA, totally NSSA — and the LSA filtering each one performs.
- Route summarization at ABRs and ASBRs (inter-area + external).
- Virtual links to repair discontiguous backbone areas.
- Authentication: plaintext, MD5, and SHA cryptographic authentication (OSPFv3).
Advanced EIGRP
- EIGRP Named mode configuration and migration from classic mode.
- Route filtering using distribute-lists, prefix-lists, and route-maps.
- Route summarization (auto vs manual) and impact on the topology table.
- EIGRP Stub router features (receive-only, leak-map, connected, summary, redistributed, static).
- Classic composite metrics vs wide metrics (64-bit) and when each is used.
Advanced BGP
- eBGP and iBGP peering, including next-hop-self and full-mesh requirements.
- Scaling iBGP with route reflectors and confederations.
- BGP communities — well-known (no-export, no-advertise, local-AS), standard, extended, and large communities.
- Path manipulation with AS-path prepending, MED, local preference, and weight.
- BGP route filtering with prefix-lists, route-maps, AS-path access-lists, and distribute-lists.
Route redistribution and policy-based routing
- Redistribution between OSPF, EIGRP, BGP, RIP, and connected/static routes.
- Loop prevention with route-tags, distribute-lists, and administrative-distance manipulation.
- Policy-based routing (PBR) to override the routing table for specific traffic.
- VRF and VRF-Lite for L3 segmentation without MPLS.
VPN technologies
- DMVPN Phase 1 (hub-and-spoke), Phase 2 (spoke-to-spoke via NHRP resolution), and Phase 3 (NHRP shortcut switching).
- NHRP fundamentals — registration, resolution, shortcut, redirect.
- FlexVPN basics — IKEv2 hub-and-spoke and spoke-to-spoke.
Infrastructure security
- Control-plane protection (CoPP) policies.
- MD5/SHA authentication on routing protocols (OSPF, EIGRP, BGP, RIP).
- Unicast Reverse Path Forwarding (uRPF) — strict vs loose mode.
- BGP TTL Security (GTSM) to prevent off-link BGP attacks.
Infrastructure services
- Advanced DHCP — server, relay, snooping, DHCPv6, options.
- NTP authentication and stratum design.
- IPv6 First Hop Security — RA Guard, DHCPv6 Guard, IPv6 Snooping, ND Inspection.
- Syslog severity levels, remote logging, and rate-limiting.
- SNMPv3 with users, groups, and views for secure monitoring.
- NetFlow v5 / v9 / Flexible NetFlow for traffic analysis.
- IP SLA probes (ICMP, UDP jitter, HTTP) with track objects and EEM.
How the practice exams help
Each free question and every premium exam mirrors the scenario-style format Cisco uses — long stem with router output or topology diagram, four to six plausible options, sometimes multi-select. Detailed explanations cover not just why the right answer is right but why the distractors are wrong, so you learn the underlying protocol behavior rather than memorizing answers.
How to prepare for the 300-410 ENARSI exam
ENARSI rewards two things: thorough understanding of routing-protocol mechanics and hands-on configuration time. A book-only strategy rarely works. Recommended approach:
- Study the published blueprint (4-5 weeks). Read the official Cisco ENARSI exam topics top to bottom. The Cisco Press CCNP Enterprise Advanced Routing ENARSI 300-410 Official Cert Guide by Raymond Lacoste and Brad Edgeworth is the de facto textbook — work through it linearly, doing the chapter end-of-chapter labs as you go.
- Hands-on lab time (4-5 weeks). Spin up Cisco Modeling Labs (CML) or use a community alternative (EVE-NG with virtualized IOS XE images). Build a multi-area OSPF lab, an EIGRP Named-mode lab, an iBGP-with-route-reflectors lab, and a DMVPN Phase 3 lab. Break things on purpose and use
show+debugto figure out why. - Read RFCs and Cisco config guides (2 weeks). For BGP especially, the RFC reading (RFC 4271 BGP-4, RFC 4456 Route Reflection, RFC 5065 Confederations, RFC 1997/8092 Communities) is faster than any video course at explaining protocol-design intent. Cisco's Enterprise Routing and Switching Configuration Guide is the authoritative source for syntax.
- Practice exams (1-2 weeks). Take timed practice tests to identify weak areas. Detailed explanations on every answer option help you learn the protocol reasoning, not just memorize answers. Aim for consistent 80%+ scores before scheduling your exam.
Recommended timeline
12-16 weeks of focused study (10-15 hours per week) for engineers with current CCNA + ENCOR knowledge. Allow 18-20 weeks if your CCNA was a while back or if BGP is new to you.
Official resources
Start with the official ENARSI exam topics. The Cisco Press ENARSI Official Cert Guide is the most-recommended book. For hands-on practice, Cisco Modeling Labs (CML) is the official lab platform; the personal edition is paid but inexpensive and lets you build real multi-router topologies. Cisco Learning Network hosts free forum discussion + study materials curated by other CCNP candidates.