1Z0-1072-26 Practice Question: The primary purpose of an OCI Virtual Cloud Network (VCN)?
What is the primary purpose of an OCI Virtual Cloud Network (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
✓
To provide a customizable, isolated virtual network in OCI for your cloud resources.
A VCN is a customizable, private software-defined network that you set up in OCI, resembling a traditional physical network.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To store backup files and unstructured object data.
Why it's wrong here
Object Storage serves the purpose of holding unstructured data, backup archives, and static assets in scalable storage buckets rather than providing network-level infrastructure. This option appears tempting because administrators frequently require auxiliary storage solutions alongside cloud networking for disaster recovery plans, making it the correct choice when configuring scalable data repositories rather than when deploying a logically isolated virtual network to provision IP addresses, route traffic, and control subnet communication.
- ✗
To host public DNS domain names on the internet.
Why it's wrong here
Public DNS domain name hosting is handled by OCI DNS service, not a Virtual Cloud Network, which provides private, isolated IP address space and routing for cloud resources. This option is tempting because VCNs manage network traffic and connectivity, making them appear relevant for internet-facing infrastructure. It would be the correct choice when designing a DNS zone architecture to manage public name resolution and record sets on the internet.
- ✓
To provide a customizable, isolated virtual network in OCI for your cloud resources.
Why this is correct
An Oracle Cloud Infrastructure Virtual Cloud Network (VCN) acts as a software-defined abstraction layer that directly addresses the requirement for isolated resource deployment by establishing a dedicated, private network perimeter within the public cloud. By allowing administrators to define custom CIDR blocks, configure route tables, and manage security lists, a VCN satisfies the fundamental architectural constraint for tenant-level network isolation. This enables workloads to communicate securely while remaining logically segregated from other tenants and external networks.
- ✗
To execute serverless container functions.
Why it's wrong here
Serverless container execution is handled by OCI Container Instances or Oracle Functions rather than a Virtual Cloud Network, which fails the requirement because networking infrastructure does not run application code or container workloads. This option is tempting because developers frequently deploy containerised applications within cloud environments, and it would be the correct choice in a scenario specifically asking about running event-driven serverless code or standalone containers without managing underlying compute servers.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Security Systems Architect · founder of Courseiva
Last reviewed August 2026 · checked against the official Oracle exam blueprint
This 1Z0-1072-26 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 1Z0-1072-26 exam.