1Z0-1085-26 Core Oci Services Practice Question
A cloud architect needs to configure a regional subnet in a Virtual Cloud Network (VCN). Across how many availability domains can a regional subnet span?
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
✓
All availability domains within the region
In OCI, regional subnets can span all availability domains within a region, simplifying IP address management and resource placement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Only availability domain 1
Why it's wrong here
Subnets are not hardcoded to AD-1.
- ✗
Exactly one availability domain
Why it's wrong here
Regional subnets are not restricted to a single availability domain.
- ✗
Two availability domains maximum
Why it's wrong here
Regional subnets span all ADs in the region, whether there are one, two, or three.
- ✓
All availability domains within the region
Why this is correct
Regional subnets span all availability domains in a region for high availability.
Visual reference
About these practice questions
One of 378 original 1Z0-1085-26 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 Oracle exam blueprint
This 1Z0-1085-26 practice question is part of Courseiva's free Oracle 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 1Z0-1085-26 exam.