Proto Buff JN0-423 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   Your team manages a network monitoring system where agents on Junos devices send structured telemetry to a central collector over gRPC. Currently, agents send JSON payloads, but the collector is struggling with high CPU usage parsing large payloads. You need to reduce parsing overhead and bandwidth while keeping the data structured and self-describing for future schema changes. What should you do?

   • AUse Protocol Buffers but keep the .proto file private to the agents so only they know the schema.
   • BKeep JSON but enable gzip compression at the gRPC transport layer to reduce bandwidth and CPU usage.
   • CSwitch to XML with a predefined XSD schema to maintain self-describing structured data.
   • DSwitch to Protocol Buffers with a .proto file defining the telemetry messages, compile it with protoc, and have agents serialize binary payloads for the collector to parse.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   What is the primary purpose of Protocol Buffers in a network automation context?

   • ATo serialize structured data into a compact, efficient binary format
   • BTo encrypt data transmitted between network devices
   • CTo provide a human-readable configuration format for network devices
   • DTo replace the need for network protocols like gRPC or NETCONF
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   Which benefit is most directly associated with using Protocol Buffers over JSON for data exchange?

   • ANo need to define a schema before serializing data
   • BBuilt-in support for comments in the data format
   • CSmaller message size and faster parsing
   • DAutomatic human readability of the serialized output
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5. 9foundation · easy

   Which field rule is used to define a key-value pair structure in a .proto message?

   • Asingular
   • Brepeated
   • Coptional
   • Dmap
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6. 10foundation · easy

   In a .proto file, what is the purpose of the field number assigned to each field in a message?

   • AIt determines the data type of the field
   • BIt specifies the default value for the field
   • CIt defines the order in which fields are serialized
   • DIt uniquely identifies the field in the binary encoding
   Reveal Solution Discussion Select an answer first