Explain Considerations of Model-Driven Telemetry (including Data Consumption and Data Storage) 350-901 Practice Questions (Page 5)

Questions 21–24

1. 21expert · hard

   A network team is designing a telemetry solution for a high-frequency trading firm. They need to stream market data from network devices with minimal latency and jitter. They also need to support multiple consumers with different data requirements. Which transport protocol and consumption pattern should they use?

   • AUse SNMP traps and store them in a relational database, with consumers querying the database.
   • BUse gNMI with protobuf encoding and stream directly to a Kafka topic, with each consumer group subscribing to the topic.
   • CUse gRPC with JSON encoding and stream directly to a custom TCP server that forwards to each consumer.
   • DUse NETCONF with XML encoding and stream to a file server, with consumers reading the files.
   Reveal Solution Discussion Select an answer first
2. 22foundation · easy

   What is the purpose of a telemetry subscription?

   • ATo authenticate users who want to access the device's CLI.
   • BTo specify which data a device should stream and how it should be delivered.
   • CTo configure the device's routing protocols.
   • DTo store historical telemetry data on the device.
   Reveal Solution Discussion Select an answer first
4. 23application · medium

   A network operations team currently polls network devices every 5 minutes using SNMP to monitor interface utilization. They are experiencing delays in detecting link saturation and want to reduce the time-to-detection without increasing the polling frequency, which would overload the devices. They also want to receive immediate notifications when a threshold is crossed. Which approach should they implement?

   • AUse NETCONF to periodically fetch interface statistics every 30 seconds and store them in a file for later analysis.
   • BConfigure model-driven telemetry subscriptions to stream interface statistics to a collector, and set up threshold-based alerts in the analytics platform.
   • CEnable gRPC telemetry on the devices and have the collector poll the device every minute for the latest data.
   • DIncrease SNMP polling frequency to every 30 seconds and configure SNMP traps for threshold crossing.
   Reveal Solution Discussion Select an answer first
5. 24foundation · easy

   What is a key difference between NETCONF and gRPC-based telemetry protocols like gNMI?

   • ANETCONF uses XML encoding, while gNMI typically uses protobuf or JSON.
   • BNETCONF runs over UDP, while gNMI runs over TCP.
   • CNETCONF is push-based, while gNMI is pull-based.
   • DNETCONF is only used for configuration, while gNMI is only for telemetry.
   Reveal Solution Discussion Select an answer first