JNCIA-DevOps Data Serialization Practice Question
An engineer needs to represent an ordered list of IP addresses in a YAML configuration file for a Junos automation playbook. Which valid YAML syntax correctly defines a sequence of items?
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
✓
ip_addresses: - 192.168.1.1 - 192.168.1.2
In YAML, lists or sequences are represented using a hyphen followed by a space (-) at the beginning of each line.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ip_addresses = {192.168.1.1, 192.168.1.2}
Why it's wrong here
Incorrect. Curly braces and assignment operators are part of Python or JSON syntax, not valid YAML sequence definitions.
- ✗
ip_addresses: [192.168.1.1: 192.168.1.2]
Why it's wrong here
Incorrect. Colons inside inline lists are invalid unless defining key-value mapping elements.
- ✓
ip_addresses: - 192.168.1.1 - 192.168.1.2
Why this is correct
Correct. The hyphen (-) prefix defines a list/sequence in YAML.
- ✗
ip_addresses: * 192.168.1.1 * 192.168.1.2
Why it's wrong here
Incorrect. Asterisks are used for anchors and aliases in YAML, not list items.
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.