YAML JN0-224 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A YAML file defines a default logging configuration and then overrides it for a specific device. The engineer writes: defaults: &defaults level: info facility: local0 router1: <<: *defaults level: debug What is the resulting value of 'level' for 'router1'?

   • AAn error occurs because you cannot override a merged key.
   • Binfo
   • Cdebug
   • DThe value is a list containing both 'info' and 'debug'.
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2. 12application · medium

   A network automation team is deciding on a format for storing device inventory data that will be consumed by multiple Python scripts. The data includes nested structures (e.g., device -> interfaces -> IP addresses). The team values human readability and the ability to add comments. Which format is most appropriate?

   • ACSV
   • BYAML
   • CJSON
   • DXML
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4. 13foundation · easy

   Which statement correctly describes YAML syntax rules?

   • AIndentation is optional and only used for readability; nesting is determined by brackets.
   • BIndentation must be exactly two spaces for every level of nesting.
   • CIndentation must be consistent and spaces are used for nesting; tabs are not allowed.
   • DIndentation can be done with either tabs or spaces, as long as it is consistent.
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5. 14application · medium

   A YAML file contains multiple documents separated by '---'. A Python script using PyYAML reads the file with 'yaml.safe_load_all()'. How many documents will the script process?

   • AMultiple documents, one for each '---' separator.
   • BOne document, because '---' is ignored by the parser.
   • COne document, because '---' is a comment.
   • DAn error occurs because multiple documents are not allowed.
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6. 15expert · easy

   A YAML file contains a comment that includes a '#' character. The engineer writes: # This is a comment with a # inside key: value How does the parser interpret the '#' inside the comment?

   • AIt starts a new comment, and the rest of the line is ignored.
   • BIt causes a syntax error because '#' cannot appear inside a comment.
   • CIt is treated as part of the comment text.
   • DIt is interpreted as a comment indicator for the next line.
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