CCNP Enterprise ENCOR Syllabus Breakdown and Study Plan

What Is the CCNP Enterprise ENCOR Exam?

The Implementing and Operating Cisco Enterprise Network Core Technologies exam, commonly called 350-401 ENCOR, is the core exam for the CCNP Enterprise certification. It tests enterprise networking knowledge across routing, switching, wireless, security, network assurance, virtualization and automation.

To earn CCNP Enterprise, you must pass:

• The 350-401 ENCOR core exam
• One approved CCNP Enterprise concentration exam

Concentration options cover areas such as advanced routing, SD-WAN, enterprise design, wireless and network automation. Passing ENCOR alone also earns the Cisco Certified Specialist – Enterprise Core certification. It is also the qualifying written exam for the CCIE Enterprise Infrastructure and CCIE Enterprise Wireless lab examinations.

The ENCOR exam is 120 minutes long. Cisco can revise exam topics, policies and fees, so always compare your preparation with the latest official Cisco exam blueprint before booking the test.

ENCOR Syllabus and Domain Weightage

The 350-401 ENCOR syllabus is divided into six domains. The percentage indicates the approximate weight assigned to each area, but questions can combine concepts from multiple domains.

Infrastructure carries the highest weight, but candidates should not prepare only routing and switching. Security, automation, architecture and assurance together represent a major part of the exam.

1. Architecture: 15%

The architecture domain examines how enterprise networks are designed and how different Cisco solutions fit into an end-to-end network.

Topics to Study

• Enterprise campus design principles
• Two-tier, three-tier and fabric-based campus architectures
• High availability and redundancy concepts
• Cisco SD-Access architecture
• Cisco SD-WAN architecture
• Traditional WAN and cloud connectivity models
• Wireless deployment models
• Quality of Service design principles
• Hardware and software switching mechanisms

You should understand the roles of access, distribution and core layers. Compare a traditional campus with a fabric-based design and know why organisations use underlay and overlay networks.

For SD-Access, study the control plane, data plane, fabric border nodes, control-plane nodes, edge nodes and Cisco Catalyst Center. For SD-WAN, understand the roles of Cisco Catalyst SD-WAN Manager, Controller and Validator components, while recognising that older documentation may use the names vManage, vSmart and vBond.

Architecture questions frequently test comparison and design judgement rather than CLI configuration. Create diagrams and practise explaining why one topology is more suitable than another.

2. Virtualization: 10%

Virtualization separates logical network functions from physical infrastructure. ENCOR expects you to understand device, network and data-path virtualization.

Topics to Study

• Device virtualization and high-availability concepts
• Virtual Routing and Forwarding instances
• Generic Routing Encapsulation tunnels
• IPsec tunnelling concepts
• Locator/ID Separation Protocol
• Virtual Extensible LAN
• Overlay and underlay networks
• Network Functions Virtualization

VRF is an important practical topic. A router can maintain separate routing tables for different customers, departments or services.

ip vrf FINANCE
 rd 65000:10
!
interface GigabitEthernet0/1
 ip vrf forwarding FINANCE
 ip address 10.10.10.1 255.255.255.0
 no shutdown
!
show ip vrf
show ip route vrf FINANCE

The ip vrf forwarding command removes an existing IP address from the interface, so apply the VRF before configuring the address.

Also compare VXLAN, GRE and IPsec. VXLAN provides Layer 2 overlays over a Layer 3 network, GRE encapsulates different Layer 3 protocols but does not provide encryption by itself, and IPsec provides confidentiality and integrity for IP traffic.

3. Infrastructure: 30%

Infrastructure is the largest ENCOR domain and requires strong configuration, verification and troubleshooting skills. It covers Layer 2, Layer 3, wireless and IP services.

Layer 2 Technologies

Study VLANs, 802.1Q trunks, EtherChannel and Spanning Tree Protocol. You should be able to identify root bridges, blocked paths, port roles and EtherChannel negotiation problems.

interface range GigabitEthernet1/0/1-2
 switchport mode trunk
 channel-group 1 mode active
!
interface Port-channel1
 switchport mode trunk
 switchport trunk allowed vlan 10,20,30
!
show etherchannel summary
show interfaces trunk
show spanning-tree vlan 10

Know the differences between LACP and PAgP. LACP uses active and passive, while PAgP uses desirable and auto. A static EtherChannel uses mode on and performs no negotiation.

Layer 3 Technologies

Routing preparation should include:

• EIGRP concepts and named mode
• Single-area and multi-area OSPFv2 and OSPFv3
• Route summarisation and filtering
• External Border Gateway Protocol
• Administrative distance and route selection
• Policy-Based Routing
• Bidirectional Forwarding Detection concepts

Practise building OSPF neighbour relationships and diagnosing area, timer, network type, authentication and MTU problems.

router ospf 10
 router-id 1.1.1.1
 network 10.1.12.0 0.0.0.255 area 0
 network 10.1.1.1 0.0.0.0 area 0
!
show ip ospf neighbor
show ip ospf interface brief
show ip route ospf

For BGP, understand neighbour establishment, path attributes and eBGP route advertisement. ENCOR is not as route-policy intensive as an advanced routing concentration exam, but the core concepts must be clear.

Wireless and IP Services

Wireless topics include controller-based architecture, access point modes, Layer 2 and Layer 3 roaming, radio principles, WLAN configuration and troubleshooting. Learn how client traffic moves through centralised and local switching designs.

IP services include:

• Network Time Protocol
• Network Address Translation
• Hot Standby Router Protocol and Virtual Router Redundancy Protocol
• Multicast concepts
• Quality of Service

For QoS, understand classification, marking, queuing, policing and shaping. Be able to interpret DSCP values and explain where QoS policies should be applied.

4. Network Assurance: 10%

Network assurance covers monitoring, troubleshooting and operational visibility. The exam may present output from several tools and ask you to identify the most useful next step.

Important Technologies

• Cisco IOS debugging and conditional debugging
• Syslog and logging severity levels
• Simple Network Management Protocol
• Flexible NetFlow
• Switched Port Analyzer, RSPAN and ERSPAN
• IP Service Level Agreements
• Cisco Catalyst Center assurance
• Packet capture and troubleshooting methods

Learn what each tool can and cannot provide. SNMP is commonly used for monitoring and management, while NetFlow provides information about traffic conversations. SPAN copies traffic to a local analyser port; RSPAN carries mirrored traffic across a Layer 2 network; ERSPAN transports mirrored traffic through a GRE-based tunnel.

logging host 10.20.30.40
logging trap warnings
!
ip sla 10
 icmp-echo 10.1.1.1 source-interface GigabitEthernet0/0
 frequency 30
ip sla schedule 10 life forever start-time now
!
show ip sla statistics
show logging

Troubleshooting should follow a repeatable process: define the problem, collect evidence, isolate the affected layer, test a hypothesis, implement a change and verify the result.

5. Security: 20%

Security is the second-largest ENCOR domain. It includes device protection, network infrastructure security, wireless security and enterprise security design.

Core Security Areas

• Local authentication and AAA
• TACACS+ and RADIUS concepts
• Secure device management using SSH
• Standard and extended access control lists
• Control Plane Policing
• Infrastructure access control
• Wireless authentication and encryption
• Cisco TrustSec and scalable group concepts
• MACsec and IPsec fundamentals
• Network segmentation and threat defence

You should understand the difference between authentication, authorisation and accounting. TACACS+ and RADIUS both support centralised access control, but they handle authentication and command authorisation differently.

A basic local AAA and SSH configuration can look like this:

hostname R1
ip domain name lab.example
username netadmin privilege 15 secret StrongSecretValue
crypto key generate rsa modulus 2048
!
aaa new-model
aaa authentication login default local
!
line vty 0 4
 login authentication default
 transport input ssh

In production, use organisation-approved password policies, centralised AAA servers and restricted management access. Do not rely on a single local administrator account as the complete access-control design.

Practise ACL placement and processing order. Remember that ACL entries are evaluated from top to bottom and that an implicit deny exists at the end.

6. Automation and Artificial Intelligence: 15%

Modern enterprise engineers need to understand APIs, structured data and basic programming. ENCOR does not require advanced software development, but it expects you to read scripts and understand automation workflows.

Topics to Study

• Basic Python components and scripts
• JSON syntax and data structures
• YANG data modelling concepts
• REST APIs and HTTP operations
• RESTCONF
• Cisco Catalyst Center APIs
• Cisco Catalyst SD-WAN Manager APIs
• Embedded Event Manager applets
• Agent-based and agentless automation tools
• Artificial intelligence and machine learning use cases in network operations

Learn the purpose of HTTP methods such as GET, POST, PUT, PATCH and DELETE. Recognise common response codes including 200 OK, 201 Created, 400 Bad Request, 401 Unauthorized, 404 Not Found and 500 Internal Server Error.

Be comfortable reading JSON:

{
  "hostname": "BLR-CORE-01",
  "interfaces": [
    {
      "name": "GigabitEthernet1/0/1",
      "enabled": true
    }
  ]
}

For AI, focus on practical network use cases such as anomaly detection, event correlation, capacity forecasting and operational assistance. Understand that AI-generated recommendations still require validation, security controls and human oversight.

A Practical 12-Week ENCOR Study Plan

This plan suits working professionals and students who can study approximately 10 to 12 hours per week. Adjust it according to your existing CCNA-level knowledge.

Recommended Weekly Routine

Use a balanced routine instead of reading continuously:

• Four hours: Study concepts and create short notes.
• Four hours: Build labs and verify command output.
• Two hours: Answer practice questions and review mistakes.
• One to two hours: Revise older domains.

Keep an error log containing every misunderstood question, failed lab and command mistake. Review it weekly. This is more useful than repeatedly answering familiar questions.

Lab Setup for ENCOR Preparation

Hands-on practice is essential. Depending on your computer resources and software access, you can use Cisco Packet Tracer for selected fundamentals, Cisco Modeling Labs, EVE-NG, GNS3 or physical Cisco equipment.

Packet Tracer is useful for many basic routing and switching exercises, but it does not implement every ENCOR technology or command. Use a platform that supports the required Cisco images and features for advanced labs. Ensure that all software images and licences are obtained legally.

Build reusable labs for:

• Multi-area OSPF
• eBGP between enterprise and service-provider routers
• VLANs, trunks, STP and EtherChannel
• HSRP or VRRP gateway redundancy
• VRF-based routing separation
• ACL and AAA configuration
• Syslog, SNMP and IP SLA monitoring
• Python and REST API data handling

Final Preparation Checklist

Before scheduling the exam, confirm that you can:

• Explain every domain in the official blueprint
• Configure and troubleshoot core routing and switching features
• Interpret wireless, SD-Access and SD-WAN architectures
• Select suitable assurance and monitoring tools
• Apply device, infrastructure and wireless security concepts
• Read basic Python and valid JSON
• Interpret API methods, status codes and payloads
• Complete timed practice tests without depending on memorised answers

Candidates in Chennai, Bangalore and other Indian technology hubs should also connect ENCOR preparation with job skills. Enterprise support, network operations, implementation and network automation roles often require troubleshooting ability beyond certification theory. Strong labs, clear documentation and the ability to explain design decisions are valuable during technical interviews.

Use the Cisco blueprint as your final authority, revise each domain systematically and spend substantial time interpreting real command output. A structured plan makes the broad ENCOR syllabus manageable and builds skills that remain useful after the exam.