300-435 Question #32: Real Exam Question with Answer & Explanation

The correct answer is D: period. For NETCONF YANG-push telemetry subscriptions, the <yp:period> XML tag specifies the interval, in milliseconds, at which the device should send data updates.

Device-Level Network Automation

Question

Refer to the exhibit. Which XML tag completes this NETCONF telemetry subscription with a Cisco IOS XE device? <rpc message-id="101" xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"> <establish-subscription xmlns="urn:ietf:params:xml:ns:netconf:event-notifications" xmlns:yp="urn:ietf:params:xml:ns:yang:ietf-yang-push"> <stream>yang-push</stream> <yp:xpath-filter>/mdt-oper-data/mdt-subscriptions</yp:xpath-filter> <yp: >1000</yp: > </establish-subscription> </rpc>

Options

Acrontab
Bcadence
Cfrequency
Dperiod

Explanation

For NETCONF YANG-push telemetry subscriptions, the <yp:period> XML tag specifies the interval, in milliseconds, at which the device should send data updates.

Common mistakes.

A. crontab is related to scheduling tasks in Unix-like systems and is not a standard YANG-push telemetry tag.
B. cadence is a general term for rhythm or sequence but is not a specific XML tag used in YANG-push telemetry.
C. frequency is a general term, but the specific YANG-push tag for defining the interval for periodic updates is period.

Concept tested. YANG-push subscription parameters

Reference. https://datatracker.ietf.org/doc/html/rfc8639

Topics

#NETCONF#YANG Push Telemetry#Telemetry Subscription#Cisco IOS XE Automation

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