Consul 1.15 Key Value Store Practice Question
Which TWO of the following are true about the 'cas' parameter in KV writes?
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
✓
It stands for Check-And-Set
The 'cas' parameter stands for Check-And-Set and requires the index to be provided to ensure atomicity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It is only available in the CLI
Why it's wrong here
It is available in the API.
- ✗
It only works for new keys
Why it's wrong here
It works for updates too.
- ✓
It stands for Check-And-Set
Why this is correct
Correct definition.
- ✗
It is mandatory for all writes
Why it's wrong here
It is optional.
- ✓
It requires a valid ModifyIndex
Why this is correct
The index must match the current state.
About these practice questions
Courseiva writes every Consul 1.15 question from scratch — 194 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. 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 HashiCorp exam blueprint
This Consul 1.15 practice question is part of Courseiva's free HashiCorp 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 Consul 1.15 exam.