Cisco ENCOR 350-401 Trivia Flashcards

Which Python data structure is best suited to store YANG-modeled configuration data retrieved via NETCONF?

Answer: Dictionary (dict)

NETCONF returns XML that maps naturally to nested Python dictionaries when parsed with libraries like xmltodict or ncclient.

In Cisco SD-WAN (Viptela), which component distributes OMP routing updates between vEdge/cEdge routers?

Answer: vSmart

The vSmart controller runs OMP (Overlay Management Protocol) and acts as the route reflector for all SD-WAN edge devices.

What is the maximum number of equal-cost paths that OSPF supports for load balancing by default on Cisco IOS?

Answer: 4

OSPF defaults to 4 equal-cost paths for load balancing, though this can be increased with the 'maximum-paths' command.

Which type of EVPN BGP route is used to advertise MAC and IP binding information learned from a local host?

Answer: Route Type 2 (MAC/IP Advertisement)

EVPN Route Type 2 carries MAC address and optional IP address bindings to enable L2 reachability across VXLAN fabric.

Which Cisco security feature inspects traffic at Layer 7 and can block specific application signatures regardless of port?

Answer: NBAR2

Network-Based Application Recognition 2 (NBAR2) performs deep packet inspection at Layer 7 to classify applications by signature, not just port.

What happens to OSPF adjacency when two routers on the same link have mismatched MTU settings?

Answer: Adjacency gets stuck in EXSTART/EXCHANGE state

MTU mismatch causes OSPF to fail during the database exchange phase, leaving adjacency stuck in EXSTART or EXCHANGE state.

In a Cisco FlexConnect deployment, which forwarding mode allows the AP to switch traffic locally without sending it to the WLC?

Answer: Local switching

FlexConnect local switching allows the AP to forward traffic directly to the local network without tunneling it back to the WLC.