Cisco ENCOR Cisco ENCOR 350-401 MCQ 5 — Questions and Answers
Question 1: Which Ansible module is used to run commands on Cisco IOS devices and capture the output?
- cisco.ios.ios_config
- cisco.ios.ios_command (Correct answer)
- cisco.ios.ios_facts
- cisco.ios.ios_ping
Correct answer: cisco.ios.ios_command
The `cisco.ios.ios_command` module executes arbitrary show or exec commands on IOS devices and returns the output as a variable.
Question 2: What is the primary difference between HSRP and VRRP for first-hop redundancy?
- HSRP is an open standard; VRRP is Cisco proprietary
- VRRP is an open standard (RFC 5798); HSRP is Cisco proprietary (Correct answer)
- HSRP supports IPv6; VRRP does not
- VRRP uses UDP; HSRP uses TCP
Correct answer: VRRP is an open standard (RFC 5798); HSRP is Cisco proprietary
VRRP (Virtual Router Redundancy Protocol) is an open IETF standard defined in RFC 5798, while HSRP (Hot Standby Router Protocol) is a Cisco-proprietary protocol.
Question 3: Which type of Cisco DNA Center intent API allows you to retrieve the list of all network devices in the fabric?
- Site Hierarchy API
- Network Device API (Correct answer)
- Path Trace API
- Tag API
Correct answer: Network Device API
The Network Device API (`/dna/intent/api/v1/network-device`) returns inventory information for all devices managed by Cisco DNA Center.
Question 4: In QoS, what does DSCP EF (Expedited Forwarding) value 46 ensure for voice traffic?
- Best-effort delivery with no queue priority
- Low latency, low jitter, guaranteed bandwidth delivery (Correct answer)
- Encrypted forwarding through IPsec tunnels
- Weighted Random Early Detection drop behavior
Correct answer: Low latency, low jitter, guaranteed bandwidth delivery
DSCP EF (value 46) marks voice bearer traffic to receive strict priority queuing, ensuring low latency, low jitter, and minimum packet loss.
Question 5: Which spanning tree enhancement prevents a non-designated port from becoming a designated port if it stops receiving BPDUs?
- PortFast
- BPDU Filter
- Loop Guard (Correct answer)
- Root Guard
Correct answer: Loop Guard
Loop Guard places a port into a loop-inconsistent blocking state if it stops receiving BPDUs, preventing it from erroneously transitioning to forwarding.
Question 6: What is the BGP best-path selection criterion immediately following 'Highest Weight'?
- Highest LOCAL_PREF (Correct answer)
- Lowest AS_PATH length
- Lowest MED
- Prefer eBGP over iBGP
Correct answer: Highest LOCAL_PREF
After Highest Weight (Cisco proprietary, local to router), BGP selects the path with the Highest LOCAL_PREF, which is shared across the local AS.
Question 7: Which YANG data modeling statement defines the actual configuration or operational data leaf nodes with a specific data type?
- container
- list
- leaf (Correct answer)
- module
Correct answer: leaf
A YANG `leaf` statement defines a single data node with a specific type (string, integer, boolean, etc.), holding one value in the configuration or state tree.
Cisco ENCOR Cisco ENCOR 350-401 MCQ 5
Which Ansible module is used to run commands on Cisco IOS devices and capture the output?