1Z0-1085-26 Getting Started With Oci Practice Question
Your development team needs to test an application's resilience against infrastructure hardware failures within a specific OCI region that contains only a single Availability Domain. Which OCI feature should you utilize to distribute your compute instances for fault tolerance?
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
✓
Fault Domains
In regions with a single Availability Domain, Fault Domains provide the necessary high availability by logically isolating instances onto separate underlying hardware.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Dynamic Routing Gateways
Why it's wrong here
Dynamic Routing Gateways are used to connect VCNs to on-premises networks or other VCNs, not for instance fault distribution.
- ✗
Cross-Region Replication
Why it's wrong here
Cross-region replication is a storage feature, not a compute distribution method for single-AD resiliency.
- ✓
Fault Domains
Why this is correct
Fault Domains allow you to distribute instances across physical hardware within a single availability domain to protect against unexpected hardware failures or maintenance.
- ✗
Secondary Regions
Why it's wrong here
Secondary regions are used for disaster recovery across geographic distances, not for localized single-AD hardware isolation.
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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.