Cisco ENCOR Cisco ENCOR 350-401 3 — Questions and Answers
Question 1: A Cisco Catalyst switch is configured with 'switchport mode dynamic desirable' on both ends of a link. What will the result be?
- Access port on both sides
- Trunk port negotiated via DTP (Correct answer)
- The link will not come up
- One side becomes access, the other trunk
Correct answer: Trunk port negotiated via DTP
When both ends are set to dynamic desirable, DTP negotiates a trunk link because both sides are actively trying to form a trunk.
Question 2: Which IPv6 address type is equivalent to IPv4 private addressing and is only routable within the local network?
- Link-local (FE80::/10)
- Global unicast (2000::/3)
- Unique local (FC00::/7) (Correct answer)
- Anycast
Correct answer: Unique local (FC00::/7)
Unique local addresses (FC00::/7, typically FD00::/8 in practice) are the IPv6 equivalent of RFC 1918 private addresses and are not routed on the global Internet.
Question 3: In a Cisco SD-WAN (Viptela) architecture, which component is responsible for distributing routing and policy information to vEdge/cEdge routers?
- vManage
- vBond
- vSmart (Correct answer)
- vAnalytics
Correct answer: vSmart
The vSmart controller distributes OMP routing updates and centralized policy to all vEdge/cEdge devices in the overlay.
Question 4: Which Cisco DNA Center assurance feature correlates network events to a specific client's experience over time?
- Network topology view
- Client 360 (Correct answer)
- Device 360
- Path trace
Correct answer: Client 360
Client 360 in Cisco DNA Center provides a comprehensive view of a single client's connectivity history, health score, and event timeline.
Question 5: What is the purpose of the BGP 'next-hop-self' command on a route reflector?
- Forces iBGP peers to use the route reflector as the next-hop (Correct answer)
- Disables BGP split horizon
- Changes the AS path for outbound routes
- Enables BGP fast convergence
Correct answer: Forces iBGP peers to use the route reflector as the next-hop
The next-hop-self command causes the router to replace the BGP next-hop attribute with its own address, ensuring iBGP peers can reach destinations through it.
Question 6: Which type of Cisco ACL is evaluated closest to the destination and can filter based on source AND destination addresses?
- Standard ACL applied outbound near destination
- Extended ACL applied inbound near source
- Extended ACL applied outbound near destination (Correct answer)
- Standard ACL applied inbound near source
Correct answer: Extended ACL applied outbound near destination
Extended ACLs match on source/destination IP and port; applying them outbound near the destination is valid, though best practice is inbound near the source to drop traffic early.
Question 7: In Cisco's three-tier campus network model, which layer provides high-speed packet switching between distribution blocks?
- Access layer
- Distribution layer
- Core layer (Correct answer)
- Aggregation layer
Correct answer: Core layer
The core layer provides fast, reliable transport between distribution layer blocks and should not perform packet manipulation to maintain speed.
Cisco ENCOR Cisco ENCOR 350-401 3
A Cisco Catalyst switch is configured with 'switchport mode dynamic desirable' on both ends of a link.
What will the result be?