Explain Considerations of Model-Driven Telemetry (including Data Consumption and Data Storage) 350-901 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   What is a trade-off of using JSON for telemetry data encoding?

   • AIt cannot represent hierarchical data structures.
   • BIt is not supported by any telemetry protocols.
   • CIt is human-readable but larger in size compared to binary encodings.
   • DIt is binary and requires special tools to read.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   What is the primary benefit of model-driven telemetry over traditional polling-based network monitoring?

   • AIt eliminates the need for a separate data collector by storing data directly on the device.
   • BIt uses a push model to stream data to collectors as changes occur or on a scheduled cadence.
   • CIt allows the collector to request specific data at any time, similar to SNMP.
   • DIt requires less network bandwidth because data is compressed before transmission.
   Reveal Solution Discussion Select an answer first
4. 13expert · hard

   A network operations team is storing telemetry data in a time-series database. They are experiencing performance issues with queries that aggregate data over long time ranges. They also need to reduce storage costs. Which strategy should they implement?

   • AIncrease the retention period for raw data to keep more data available for queries.
   • BImplement downsampling and data retention policies to store raw data for a short period and aggregated data for a longer period.
   • CUse a relational database instead of a time-series database for better query performance.
   • DStore all data in memory for faster query performance.
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   What is the role of a message broker in telemetry data consumption?

   • AIt generates telemetry data on behalf of network devices.
   • BIt stores telemetry data permanently for long-term analysis.
   • CIt decouples producers and consumers by buffering and distributing telemetry data.
   • DIt encrypts telemetry data before transmission.
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   A development team is building a telemetry collector that must handle high-throughput streams from many devices. They need to minimize bandwidth usage and CPU overhead for parsing. They also need to support schema evolution. Which encoding should they choose?

   • AXML
   • BPlain text
   • CGPB (Google Protocol Buffers)
   • DJSON
   Reveal Solution Discussion Select an answer first