300-435 Question 107
Single answerAn enterprise network administrator is designing a monitoring solution for their network infrastructure. They are evaluating the differences between publication and subscription telemetry models. Which of the following is a key characteristic of the subscription telemetry model?
- A
The data is pushed to the collector without the need for a subscription request.
- B
The collector explicitly requests data at periodic intervals.
- C
The telemetry data is sent in real-time based on a subscription request.
- D
The telemetry model is primarily designed for legacy SNMP polling.
Show answer and explanation
Correct answer: C
Explanation
In the subscription telemetry model, the collector plays an active role by subscribing to specific data streams or metrics of interest. Once the subscription is established, the telemetry data is sent in real-time to the collector, improving efficiency and reducing the need for periodic polling. This is in contrast to publication models, which push data proactively but do not rely on subscription requests.
- A. Incorrect.
This describes the publication telemetry model, where data is pushed to the collector proactively, but without the need for a subscription. It is incorrect for the subscription telemetry model.
- B. Incorrect.
This describes a traditional pull-based telemetry model or SNMP-based polling, not the subscription telemetry model. It is incorrect.
- C. Correct.
This is correct. In the subscription telemetry model, the collector subscribes to specific data streams, and the telemetry data is sent in real-time as per the subscription request.
- D. Incorrect.
Subscription telemetry models are not designed for legacy SNMP polling but for newer protocols and methods that support real-time data streaming. This is incorrect.