JNCIA-DevOps Data Serialization Practice Question
Which character is used to indicate a mapping key-value pair in YAML syntax?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Colon (:)
In YAML, a key-value mapping is represented by a colon followed by a space (: ).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Semicolon (;)
Why it's wrong here
Incorrect. Semicolons are not used as key-value separators in YAML.
- ✗
Arrow (->)
Why it's wrong here
Incorrect. Arrows are not used for key-value separation in YAML.
- ✓
Colon (:)
Why this is correct
Correct. A colon separates keys and values in YAML mapping pairs.
- ✗
Equals sign (=)
Why it's wrong here
Incorrect. Equals signs are used in INI files and programming languages, not YAML mapping.
About these practice questions
One of 306 original JNCIA-DevOps practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Juniper Networks exam blueprint
This JNCIA-DevOps practice question is part of Courseiva's free Juniper Networks certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the JNCIA-DevOps exam.