Management Process (MGD-based) Automation JN0-423 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   What is the typical format of the response that MGD returns for an operational request from NETCONF?

   • ABinary data
   • BJSON-encoded data
   • CPlain text output
   • DXML-encoded data
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2. 7application · medium

   A network engineer is automating configuration changes on a Junos device. The engineer wants to ensure that if a commit fails due to a syntax error, the device does not enter an inconsistent state. Which statement correctly describes how MGD handles this scenario?

   • AMGD applies the configuration to the active configuration, and if a syntax error is found, it logs the error but continues with the rest of the configuration.
   • BMGD applies the configuration to the active configuration immediately, and if a syntax error is found, it rolls back automatically.
   • CMGD validates the configuration against the candidate configuration, and if a syntax error is found, it rejects the commit and leaves the active configuration unchanged.
   • DMGD applies the configuration to the forwarding plane first, and if a syntax error is found, it reverts the forwarding plane configuration.
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4. 8application · medium

   A network operator issues the 'show interfaces ge-0/0/0 extensive' command on a Junos device. The output is displayed on the terminal. Which process is responsible for processing this operational request and returning the output to the CLI client?

   • AThe CLI itself queries the hardware directly and formats the output without any daemon involvement.
   • BMGD processes the operational request, queries the appropriate daemons, and returns the output to the CLI client.
   • CThe Routing Engine's kernel processes the request and sends the output directly to the CLI without involving MGD.
   • DThe Packet Forwarding Engine (PFE) directly generates the output and sends it to the CLI.
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5. 9foundation · easy

   How do automation tools like NETCONF and REST interact with Junos devices?

   • AThey only work through the CLI
   • BThey bypass MGD and directly modify the configuration files
   • CThey require a separate management daemon for each tool
   • DThey use MGD as the central point for configuration and operational requests
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6. 10expert · medium

   A network engineer is designing a high-availability solution for a Junos device with dual Routing Engines. The engineer wants to automate configuration changes so that they are applied to both Routing Engines simultaneously. Which approach should the engineer use?

   • AUse the 'commit confirmed' command to apply the configuration to both Routing Engines.
   • BUse the 'commit check' command to validate the configuration on both Routing Engines.
   • CUse the 'commit synchronize' command to apply the configuration to both Routing Engines.
   • DUse the 'rollback' command to revert the configuration on both Routing Engines.
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