Event Scripts JN0-423 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   An event script is designed to run a series of CLI commands when a specific event occurs. The engineer wants to ensure that if one command fails, the script logs the error and continues with the remaining commands, rather than aborting. What is the correct way to handle this in the script?

   • AWrap each CLI command in a try-catch block and log the error in the catch block, then continue with the next command.
   • BSet the 'abort-on-error' flag to false in the script declaration.
   • CRun each command in a separate event policy so that a failure in one does not affect the others.
   • DUse the 'ignore-error' statement after each CLI command to suppress any errors and continue.
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2. 7expert · hard

   A managed service provider runs event scripts on customer routers. The scripts are stored centrally and pushed to devices. The provider wants to ensure that a compromised script cannot be used to execute arbitrary commands on the device. Which security mechanism is specifically designed to restrict the commands an event script can execute?

   • APlacing the script in the '/var/db/scripts/event' directory.
   • BUsing a 'login' class with 'permissions' that deny 'shell' access.
   • CThe 'allow-commands' statement inside the event script.
   • DSetting the script file permissions to 700.
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4. 8foundation · easy

   How does an event script interact with the Junos CLI?

   • AIt only reads configuration, never executes commands
   • BIt replaces the CLI for all operations
   • CIt can execute CLI commands as actions
   • DIt cannot use CLI commands at all
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5. 9foundation · easy

   What must be specified in an event policy to associate it with an event script?

   • AThe version of the Junos OS
   • BThe IP address of the syslog server
   • CThe name of the event script file
   • DThe username for script execution
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6. 10application · medium

   An engineer is debugging an event script that is not behaving as expected. The script is triggered by a 'UI_COMMIT_COMPLETED' event. The engineer wants to test the script logic without waiting for a commit to happen. Which method allows the engineer to execute the script manually and see its output?

   • ATemporarily change the event policy to trigger on a more frequent event, like 'UI_COMMIT_PROGRESS'.
   • BRun the command 'op event-script test <script-name>' from the CLI.
   • CReboot the device and observe the script's behavior during the boot sequence.
   • DUse the 'request system scripts event invoke' command.
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