CCNP Enterprise ENSLD Practice Exams

The 300-420 ENSLD exam — Designing Cisco Enterprise Networks — is a CCNP Enterprise concentration exam that, combined with the 350-401 ENCOR core exam, earns the CCNP Enterprise certification. It is the design exam in the track, and it is deliberately different in character from ENARSI: questions ask which design satisfies a stated requirement and what trade-off a choice implies, rather than which command fixes a symptom. The blueprint covers advanced addressing and routing solutions (25%) — hierarchical IPv4 and IPv6 addressing and summarization, EIGRP and OSPF scalability and area design, BGP scaling with route reflectors and confederations, and route redistribution and filtering design; advanced enterprise campus networks (25%) — hierarchical and spine-and-leaf topologies, Layer 2 and Layer 3 boundary placement, STP and FHRP selection, campus high availability, and wireless and multicast design; WAN for enterprise networks (20%) — MPLS L3VPN, SD-WAN, internet and metro Ethernet transports, WAN high availability and resiliency, and site-to-site VPN design; network services (20%) — QoS strategy and models, multicast, network management and monitoring design, and DNS, DHCP and IPAM; and automation (10%) — SDN controller architectures, YANG data models, NETCONF and RESTCONF, and REST API design considerations. The exam runs 90 minutes.

• 1Completes CCNP Enterprise when paired with the 350-401 ENCOR core exam
• 2The only design-focused exam in the enterprise track — it develops judgment rather than command recall
• 3Design reasoning transfers directly to architect, presales, and senior engineering roles
• 4Covers SD-WAN and SDN design at a depth that reflects how enterprise WANs are actually being rebuilt
• 5Strong preparation for CCIE Enterprise Infrastructure and for the CCDE, which extends the same design discipline

• ✓Create hierarchical IPv4 and IPv6 addressing plans that support effective summarization
• ✓Select an IPv6 addressing and transition strategy appropriate to a stated migration constraint
• ✓Design EIGRP for scale using summarization, stub routers, and bounded query domains
• ✓Design OSPF area structure, area types, and summarization to control LSA flooding
• ✓Scale BGP with route reflectors or confederations and design peering and filtering policy
• ✓Design route redistribution and filtering that avoids loops and suboptimal routing
• ✓Choose between hierarchical three-tier, collapsed core, and spine-and-leaf campus topologies
• ✓Place the Layer 2 to Layer 3 boundary and justify a routed access versus traditional access design
• ✓Select spanning tree, FHRP, and link aggregation options that meet convergence requirements
• ✓Design campus high availability including StackWise, VSS, and virtual port channel approaches
• ✓Design wireless deployment models and controller placement for a given coverage and roaming need
• ✓Design multicast including PIM mode, RP placement, and RP redundancy
• ✓Compare MPLS L3VPN, internet, metro Ethernet, and broadband transports for a WAN requirement
• ✓Design SD-WAN overlays including control plane components, transport selection, and policy
• ✓Design WAN resiliency with dual-homing, path selection, and appropriate failure detection
• ✓Design site-to-site VPN including DMVPN topology choice and IPsec considerations
• ✓Build a QoS strategy: classification, marking, trust boundaries, queuing, and policing versus shaping
• ✓Design network management and monitoring using SNMP, syslog, NetFlow, and streaming telemetry
• ✓Design DNS, DHCP, and IPAM services for an enterprise with resiliency requirements
• ✓Compare SDN controller architectures and evaluate where automation belongs in a design
• ✓Apply YANG data models with NETCONF and RESTCONF and evaluate REST API design considerations