Juniper Extension Toolkit (JET) Service Process (JSD-based) Automation JN0-423 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A network engineer is explaining the JSD architecture to a colleague who is new to Junos automation. The colleague asks how JSD interacts with other Junos processes to perform configuration changes. Which statement accurately describes this interaction?

   • AJSD uses the management daemon (mgd) to apply configuration changes.
   • BJSD only reads configuration data and cannot make changes.
   • CJSD directly modifies the Junos configuration database without involving other processes.
   • DJSD bypasses mgd and communicates directly with the kernel to apply configuration changes.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   What is the primary role of the Juniper Extension Toolkit (JET) service process (JSD) on a Junos device?

   • AIt provides a secure communication channel for external applications to interact with Junos using APIs.
   • BIt compiles and installs configuration changes made via the CLI.
   • CIt monitors system health and generates SNMP traps for hardware failures.
   • DIt manages the routing table and forwarding decisions for the device.
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   A development team is building a new automation tool that needs to stream high-frequency telemetry data from Junos devices to a central monitoring system. The tool must support bidirectional streaming and low-latency communication. Which JET API should the team use for this purpose?

   • ANETCONF API
   • BgRPC API
   • CSNMP API
   • DREST API
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   A client cannot connect to the JET REST API. Which log file should be examined first to troubleshoot the issue?

   • A/var/log/messages
   • B/var/log/jsd
   • C/var/log/chassisd
   • D/var/log/mgd
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6. 10expert · medium

   A company is developing a JET application that needs to support both configuration management and real-time telemetry streaming. The application will be deployed on multiple Junos devices. The team is deciding which JET APIs to use. They want to minimize the number of different APIs and protocols to simplify development and maintenance. Which approach best meets these requirements?

   • AUse NETCONF for configuration and REST for telemetry.
   • BUse the gRPC API for both configuration and telemetry.
   • CUse the REST API for both configuration and telemetry.
   • DUse NETCONF for both configuration and telemetry.
   Reveal Solution Discussion Select an answer first