mediumMultiple ChoiceObjective-mapped
200-901 Practice Question: Refer to the exhibit
Exhibit
Refer to the exhibit. ``` subscription telemetry stream yang-push filter "/interfaces/interface/state/oper-status" encoding encode-kvp source-address 192.168.1.1 receiver ip 10.10.10.1 port 2000 protocol tls ```
Refer to the exhibit. Which statement correctly describes this subscription configuration?
⚠ Common exam trap
Cisco often tests the distinction between subscription configuration details (e.g., destination IP/port) and the actual transport protocol or encoding used, leading candidates to incorrectly assume that a port number implies a specific protocol (like UDP) or that YANG-push always uses XML encoding.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It subscribes to YANG-push notifications for interface state data.
The subscription configuration uses YANG-push notifications to stream interface state data. The presence of a subscription ID, a YANG-push filter (e.g., 'ietf-interfaces:interfaces-state'), and a destination group (e.g., '10.1.1.1:2000') indicates that the device is configured to push telemetry data for interface operational state changes to a receiver using the YANG-push model, which is a standard mechanism for streaming data from network devices.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
It subscribes to YANG-push notifications for interface state data.
Why this is correct
Correct description.
- ✗
It pushes interface operational status changes to a receiver using UDP.
Why it's wrong here
Protocol is TLS, not UDP.
- ✗
It uses XML encoding for the telemetry data.
Why it's wrong here
Encoding is encode-kvp (key-value pairs).
- ✗
The receiver is configured to listen on port 2000 using TCP.
Why it's wrong here
Receiver is the destination, not a listener.
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Senior Network & Security Engineer · founder of Courseiva
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