Cisco Enterprise Network Core Technologies (ENCOR) 350-401

Architecture - 15%

1. Explain the different design principles used in an enterprise network
Enterprise network design such as Tier 2, Tier 3, and Fabric Capacity planning
High availability techniques such as redundancy, FHRP, and SSO
2. Analyze design principles of a WLAN deployment
Wireless deployment models (centralized, distributed, controller-less, controller based, cloud, remote branch)
Location services in a WLAN design
3. Differentiate between on-premises and cloud infrastructure deployments
4. Explain the working principles of the Cisco SD-WAN solution
SD-WAN control and data planes elements
Traditional WAN and SD-WAN solutions
5. Explain the working principles of the Cisco SD-Access solution
SD-Access control and data planes elements
Traditional campus interoperating with SD-Access
6. Describe concepts of wired and wireless QoS
QoS components
QoS policy
7. Differentiate hardware and software switching mechanisms
Process and CEF
MAC address table and TCAM
FIB vs. RIB

Virtualization - 10%

1. Describe device virtualization technologies
Hypervisor type 1 and 2
Virtual machine
Virtual switching
2. Configure and verify data path virtualization technologies
VRF
GRE and IPsec tunneling
3. Describe network virtualization concepts
LISP
VXLAN

Infrastructure - 30%

1. Layer 2

• Troubleshoot static and dynamic 802.1q trunking protocols
  Troubleshoot static and dynamic EtherChannels
  Configure and verify common Spanning Tree Protocols (RSTP and MST)

• Compare routing concepts of EIGRP and OSPF (advanced distance vector vs. linked state, load balancing, path selection, path operations, metrics)
  Configure and verify simple OSPF environments, including multiple normal areas, summarization, and filtering (neighbor adjacency, point-to-point and broadcast network types, and passive interface)
  Configure and verify eBGP between directly connected neighbors (best path selection algorithm and neighbor relationships)

• Describe Layer 1 concepts, such as RF power, RSSI, SNR, interference noise, band and channels, and wireless client devices capabilities
  Describe AP modes and antenna types
  Describe access point discovery and join process (discovery algorithms, WLC selection process)
  Describe the main principles and use cases for Layer 2 and Layer 3 roaming
  Troubleshoot WLAN configuration and wireless client connectivity issues

• Describe Network Time Protocol (NTP)
  Configure and verify NAT/PAT
  Configure first hop redundancy protocols, such as HSRP and VRRP
  Describe multicast protocols, such as PIM and IGMP v2/v3

Network Assurance - 10%

1. Diagnose network problems using tools such as debugs, conditional debugs, trace route, ping, SNMP, and syslog
2. Configure and verify device monitoring using syslog for remote logging
3. Configure and verify NetFlow and Flexible NetFlow
4. Configure and verify SPAN/RSPAN/ERSPAN
5. Configure and verify IPSLA
6. Describe Cisco DNA Center workflows to apply network configuration, monitoring, and management
7. Configure and verify NETCONF and RESTCONF

Security - 20%

1. Configure and verify device access control
Lines and password protection
Authentication and authorization using AAA
2. Configure and verify infrastructure security features
ACLs
CoPP
3. Describe REST API security
4. Configure and verify wireless security features
EAP, WebAuth, PSK
5. Describe the components of network security design
Threat defense
Endpoint security
Next-generation firewall
TrustSec, MACsec
Network access control with 802.1X, MAB, and WebAuth

Automation - 15%

1. Interpret basic Python components and scripts
2. Construct valid JSON encoded file
3. Describe the high-level principles and benefits of a data modeling language, such as YANG
4. Describe APIs for Cisco DNA Center and vManage
5. Interpret REST API response codes and results in payload using Cisco DNA Center and RESTCONF
6. Construct EEM applet to automate configuration, troubleshooting, or data collection
7. Compare agent vs. agentless orchestration tools, such as Chef, Puppet, Ansible, and SaltStack