1Z0-1085-26 Core Oci Services Practice Question
You are configuring an Oracle Cloud Infrastructure (OCI) Virtual Cloud Network (VCN) and need to ensure that compute instances in a private subnet can initiate outbound internet connections to download software patches without allowing unsolicited inbound traffic from the internet. Which gateway must you attach to the VCN?
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
✓
NAT Gateway
A NAT (Network Address Translation) Gateway enables instances in a private subnet to connect to the internet for updates while blocking inbound connections from the internet.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Service Gateway
Why it's wrong here
A Service Gateway allows private access to Oracle services like Object Storage within the region without internet access.
- ✗
Internet Gateway
Why it's wrong here
An Internet Gateway allows both inbound and outbound bidirectional traffic.
- ✓
NAT Gateway
Why this is correct
A NAT Gateway allows outbound traffic to the internet while preventing inbound sessions.
- ✗
Dynamic Routing Gateway
Why it's wrong here
A Dynamic Routing Gateway is used for connectivity to on-premises data centers or other VCNs.
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.