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What Are the Geographical Limitations of a Virtual Cloud Network in OCI?
Get ready for your Oracle Cloud Essentials exam by learning the core characteristics of a Virtual Cloud Network (VCN). Understand why a VCN can only reside in a single OCI region while spanning multiple Availability Domains and subnets.
Question
Which statement is true about a Virtual Cloud Network (VCN)?
A. A VCN can span OCI regions.
B. A VCN can reside only in a single OCI region.
C. A VCN can be used with only one instance.
D. A VCN can have only one public subnet and one private subnet.
Answer
B. A VCN can reside only in a single OCI region.
Explanation
A Virtual Cloud Network (VCN) is a customizable, private software-defined network set up in Oracle Cloud Infrastructure (OCI). By design, a VCN is a regional resource, meaning it resides entirely within a single OCI region and cannot span across multiple regions. While a VCN is confined to one region, it can span multiple Availability Domains within that specific region. The other options are incorrect because a VCN can support numerous compute instances (not just one), it can contain multiple public and private subnets rather than being limited to one of each, and it cannot span across different OCI regions.