CCNP Enterprise study guide
CCNP Enterprise · Work through your exam, one topic at a time.
CCNP Enterprise (Cisco Certified Network Professional Enterprise) is the professional-level credential in Cisco's enterprise networking track. It sits above CCNA and is aimed at engineers who design, deploy, secure, and operate campus and branch networks - typically people with a few years of hands-on routing, switching, and wireless experience who want to move into senior engineering, design, or operations roles, or who need a formal validation of that skill set for a client, employer, or consulting practice. The CCNP Enterprise study guide has 6 sections and about 1,996 words.
01Enterprise Architecture: Campus Hierarchy, Fabrics, and Controllers
Traditional campus design uses a three-tier hierarchy. Access provides port density and PoE, distribution enforces policy and route summarization, and core moves packets fast.
317 words, about 2 min02Virtualization: Hypervisors, Overlays, and Network Functions
A Type 1 hypervisor (ESXi, KVM) runs directly on hardware; a Type 2 hypervisor (Workstation, VirtualBox) runs on top of a host OS. Guest VMs attach virtual NICs to a virtual switch.
329 words, about 2 min03Infrastructure: Routing, Switching, and Core Services
OSPF questions test neighbor states (down, init, 2-way, exstart, exchange, loading, full), LSA types, area types, and cost. Cost derives from the reference bandwidth divided by interface bandwidth, so a reference bandwidth of 100 Mbps makes Gigabit and faster links tie at cost 1 unless changed.
341 words, about 2 min04Network Assurance: Monitoring, Telemetry, and Troubleshooting
Ping and traceroute remain first-line tools; remember that Cisco traceroute defaults to UDP probes and that ICMP filtering can make a path look broken. Debug output must be scoped with conditional debug or ACLs on production devices.
325 words, about 2 min05Security: AAA, Layer 2 Defense, VPNs, and Segmentation
Authentication proves who you are, authorization decides what you may do, and accounting records what you did. TACACS+ runs over TCP 49, encrypts the entire payload, and separates the three functions.
325 words, about 2 min06Automation: Data Formats, APIs, and Model-Driven Operations
JSON uses double-quoted keys and strings, with objects and arrays as its two containers. YAML is whitespace-sensitive, and XML uses tags with attributes.
359 words, about 2 min