1Z0-1072-25: Oracle Cloud Infrastructure 2025 Architect AssociateDemo

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QuestionQ35

Networking

Which option is a valid RFC 1918 CIDR prefix for creating an Oracle Cloud Infrastructure (OCI) Virtual Cloud Network (VCN)?

  • A 172.16.0.0/12
  • B 189.215.154.89/32
  • C 0.0.0.0/0
  • D 192.168.0.0/16
  • E 10.0.0.0/8
  • F 192.268.0.0/24
Explanation

OCI allows IPv4 CIDR blocks for a VCN only in the /16 through /30 size range. Although RFC 1918 also includes 10.0.0.0/8 and 172.16.0.0/12, OCI does not support those prefix sizes for VCNs. 192.168.0.0/16 is an RFC 1918 private-address block and meets OCI’s VCN CIDR-size requirement.

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