The Oracle Cloud Infrastructure (OCI) Virtual Cloud Network (VCN) is the fundamental networking service for OCI. It is a software-defined, private network that you set up in OCI data centers. A VCN provides complete control over your network environment, including assigning your own private IP address space, creating subnets, configuring route tables, and setting up various gateways (like Internet Gateway, NAT Gateway, and Dynamic Routing Gateway) to connect to other networks. This directly matches all the capabilities described in the question. Options B and E are identical and therefore both are correct.

A. OCI Object Storage: This is a high-performance storage platform for unstructured data. It does not create or manage virtual networks.

C. OCI Identity and Access Management (IAM): This service controls who has access to your cloud resources and what actions they can perform; it is not a networking service.

D. OCI Load Balancer: This service distributes network traffic to multiple backend servers. It operates within a VCN but is not the service used to create the VCN itself.

1. Oracle Cloud Infrastructure Documentation

"Overview of Networking": "A VCN is a virtual

private network that you set up in Oracle data centers. It is a software-defined network that closely resembles a traditional network

with firewall rules and specific types of communication gateways that you can choose to use."

2. Oracle Cloud Infrastructure Documentation

"VCNs and Subnets": "A VCN covers a single

contiguous IPv4 CIDR block of your choice... You can subdivide the VCN into one or more subnets... For each subnet

you create a route table with rules that determine how traffic is directed out of the subnet."

3. Oracle Cloud Infrastructure Documentation

"Gateways": This section details the various gateways (Internet Gateway

NAT Gateway

Dynamic Routing Gateway

Service Gateway

Local Peering Gateway) that are components of a VCN

enabling connectivity to the internet

on-premises networks

and other services.