Exam 350-501 topic 1 question 190 discussion

yes C Correct

Telemetry uses a PUSH model SNMP uses the pull model when retrieving data from a switch. This model cannot scale for today’s high-density platforms, and offers very limited extensibility. The pull model is based on a client sending a request to the switch, then the switch responds to that request.

Model-Driven Telemetry is a new approach for network monitoring in which data is streamed from network devices continuously using a push model and provides near real-time access to operational statistics. Applications can subscribe to specific data items they need, by using standard-based YANG data models over NETCONF-YANG. Cisco IOS XE streaming telemetry allows to push data off of the device to an external collector at a much higher frequency, more efficiently, as well as data on-change streaming.

I think C is the best fit, as snmp, inc traps which is push, so that rules out D as a answer.

I think the answer here is D. Model driven telemetry is a PUSH model so the data is streamed. SNMP is a pull model so it pushes data only when it is queried.