200-901 Understanding and Using APIs Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  A third-party orchestrator initiates

  Why it's wrong here

  A third-party orchestrator plays no part in opening the telemetry TCP session; the IOS XE device itself dials the collector. It is tempting because orchestrators do configure and provision telemetry subscriptions, and an orchestrator-initiated model would be correct for push-based configuration management rather than the streaming transport itself.

• ✓

  The network device initiates the connection

  Why this is correct

  In dial-out telemetry, the network device acts as the client and initiates the TCP connection to the collector, which listens as the server. This satisfies the dial-out model, reversing the dial-in approach where the collector connects to the device.

• ✗

  The collector initiates the connection

  Why it's wrong here

  Dial-out means the IOS XE device initiates the TCP connection to the collector; a collector-initiated session is dial-in, the opposite model. It is tempting because dial-in telemetry is a legitimate alternative, and the collector initiating would be correct when the device listens passively for the management station to connect.

• ✗

  Both initiate simultaneously

  Why it's wrong here

  Not typical.