Which of the following is a common use case for YAML in automation and DevOps?

Managing network routing tables.

Compiling source code into executable binaries.

Writing configuration files for tools like Ansible and Kubernetes.

A YAML file defines a base configuration for a set of interfaces. The engineer uses an anchor and alias to reuse the base config. However, when the file is parsed, the alias does not seem to work, and the parser throws an error. The engineer checks the file and sees: base: &base mtu: 1500 interface1: <<: *base interface2: <<: *base What is the most likely reason for the error?

The anchor name 'base' is a reserved keyword in YAML.

The indentation of 'interface1' and 'interface2' is incorrect.

The alias '*base' must be defined before the anchor '&base'.

The merge key '<<:' is not supported by the parser being used.

Juniper NetworksCertified Associate, Automation and DevOps

Domain 3Objective 1

YAML JN0-224 Practice Questions (Page 1)

Part of the Data Serialization domain, which makes up ~9% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~3–5 in this domain), expect 2–3 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

6concepts

Questions 1–5

1application · easy
A YAML file contains configuration for a network device. The engineer wants to add a note explaining the purpose of a specific setting without affecting the parsed data. Which character should be used to start the comment?
Select an answer first
2foundation · easy
Which of the following is a common use case for YAML in automation and DevOps?
Select an answer first
3application · medium
An automation engineer is creating a YAML file that will store a multi-line banner message to be applied to a network device. The message must preserve line breaks exactly as written. Which YAML block scalar style should be used?
Select an answer first
4application · medium
An engineer is writing a YAML file to store a configuration snippet that includes multiple lines of Junos CLI commands. The snippet must be stored exactly as-is, including all line breaks and indentation. Which YAML construct should be used?
Select an answer first
5expert · hard
A YAML file defines a base configuration for a set of interfaces. The engineer uses an anchor and alias to reuse the base config. However, when the file is parsed, the alias does not seem to work, and the parser throws an error. The engineer checks the file and sees: base: &base mtu: 1500 interface1: <<: *base interface2: <<: *base What is the most likely reason for the error?
Select an answer first

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YAML JN0-224 Practice Questions (Page 1)

Questions 1–5

A YAML file contains configuration for a network device. The engineer wants to add a note explaining the purpose of a specific setting without affecting the parsed data. Which character should be used to start the comment?

Which of the following is a common use case for YAML in automation and DevOps?

An automation engineer is creating a YAML file that will store a multi-line banner message to be applied to a network device. The message must preserve line breaks exactly as written. Which YAML block scalar style should be used?

An engineer is writing a YAML file to store a configuration snippet that includes multiple lines of Junos CLI commands. The snippet must be stored exactly as-is, including all line breaks and indentation. Which YAML construct should be used?

Keep studying — Data Serialization