Cisco ENCOR Cisco ENCOR 350-401 Trivia 5 — Questions and Answers
Question 1: Which protocol does Cisco DNA Center use to push configuration changes to network devices in a model-driven way?
- SNMP v3
- RESTCONF/NETCONF (Correct answer)
- Telnet
- SSHv1
Correct answer: RESTCONF/NETCONF
Cisco DNA Center uses NETCONF and RESTCONF over SSH/HTTPS to push YANG-modeled configurations to managed devices.
Question 2: In IPv6, which address type is equivalent to an IPv4 private (RFC 1918) address and is routable only within an organization?
- Link-Local (FE80::/10)
- Unique Local (FC00::/7) (Correct answer)
- Global Unicast (2000::/3)
- Anycast
Correct answer: Unique Local (FC00::/7)
IPv6 Unique Local Addresses (ULA) in the FC00::/7 range are the functional equivalent of IPv4 private addresses, not globally routable.
Question 3: Which StackWise technology feature allows a failed stack master to be replaced without disrupting traffic forwarding?
- NSF (Non-Stop Forwarding)
- Stateful Switchover (SSO) (Correct answer)
- GracefulRestart
- BFD
Correct answer: Stateful Switchover (SSO)
SSO (Stateful Switchover) synchronizes the standby supervisor's state so it can take over as master without disrupting the forwarding plane.
Question 4: What is the role of the Rendezvous Point (RP) in PIM Sparse Mode multicast?
- It forwards all multicast traffic to all routers
- It serves as the meeting point for sources and receivers (Correct answer)
- It manages IGMP group membership reports
- It encrypts multicast streams
Correct answer: It serves as the meeting point for sources and receivers
The RP in PIM-SM acts as the central meeting point where multicast sources register and receivers join, enabling source-to-receiver path setup.
Question 5: Which Cisco feature uses MAC address tracking to prevent unauthorized DHCP servers from responding to client requests?
- Port Security
- DHCP Snooping (Correct answer)
- Dynamic ARP Inspection
- IP Source Guard
Correct answer: DHCP Snooping
DHCP Snooping validates DHCP messages and only allows responses from trusted ports, blocking rogue DHCP servers on untrusted ports.
Question 6: In the context of REST APIs for network automation, which HTTP method is idempotent and used to completely replace a resource?
- POST
- PATCH
- PUT (Correct answer)
- DELETE
Correct answer: PUT
PUT replaces the entire resource at the specified URI and is idempotent — sending the same PUT request multiple times produces the same result.
Question 7: Which Cisco wireless security standard uses SAE (Simultaneous Authentication of Equals) to replace PSK handshakes?
- WPA2-Personal
- WPA3-Personal (Correct answer)
- WPA2-Enterprise
- TKIP
Correct answer: WPA3-Personal
WPA3-Personal uses SAE (also known as Dragonfly handshake) to provide forward secrecy and protect against offline dictionary attacks.
Cisco ENCOR Cisco ENCOR 350-401 Trivia 5
Which protocol does Cisco DNA Center use to push configuration changes to network devices in a model-driven way?