1Z0-997-26 Security Practice Question
Your security architecture requires segregating production workloads from development workloads using distinct VCNs. However, certain microservices in the development VCN must communicate securely with a database in the production VCN without exposing traffic to the internet. What is the recommended networking construct?
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
✓
Local VCN Peering.
VCN Peering (specifically Local VCN Peering within the same region) allows resources in different VCNs to communicate privately using private IP addresses.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Local VCN Peering.
Why this is correct
Local VCN Peering connects two VCNs in the same region privately, enabling secure inter-VCN traffic without internet exposure.
- ✗
Dynamic Routing Gateway (DRG) with internet breakout enabled.
Why it's wrong here
DRG routes traffic between VCNs and on-premises networks, but enabling internet breakout introduces security risks.
- ✗
Internet Gateway with strict Security List rules.
Why it's wrong here
Using an Internet Gateway requires public IP addresses, which violates private network communication best practices.
- ✗
OCI Bastion service.
Why it's wrong here
OCI Bastion provides secure, managed access to target resources for administrative SSH/RDP sessions, not persistent microservice communication.
About these practice questions
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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 1Z0-997-26 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 1Z0-997-26 exam.