1Z0-1123-25 Question 84
Select 3Your company runs a heavily utilized e-commerce application on VMware vSphere in its on-premises data center. You plan to migrate this application to the Oracle Cloud VMware Solution with minimal downtime by leveraging VMware Hybrid Cloud Extension (HCX). Which three configuration preparations must be made to ensure a smooth migration with minimal disruption? (Choose three.)
- A
Ensure both on-premises and Oracle Cloud VMware environments run HCX-supported vSphere and vCenter versions.
- B
Configure a dedicated IPsec VPN for replication traffic, even if HCX Layer 2 network extension is already in place.
- C
Deploy and pair HCX Manager appliances in both the on-premises environment and the Oracle Cloud VMware Solution cluster.
- D
Disable vMotion on the on-premises cluster to prevent conflicts during live replication.
- E
Extend Layer 2 networks to the cloud through HCX so that existing IP addresses can be used during the cutover.
Show answer and explanation
Correct answers: A, C, E
Explanation
In a hybrid cloud migration to Oracle Cloud VMware Solution using VMware HCX, the key steps include ensuring solution compatibility (vSphere, vCenter, and HCX versions), deploying HCX Managers in both environments, and extending networks so that existing IP addresses remain valid post-migration. These practices help minimize downtime and simplify the cutover process. You can find more details about compatibility requirements, HCX deployment, and network extension in the official Oracle Cloud VMware Solution documentation and VMware HCX documentation.
- A. Correct.
Correct. HCX requires compatibility between vSphere and vCenter versions on both on-premises and cloud environments. Ensuring each site is running an HCX-supported version is a critical prerequisite for stable migration and replication.
- B. Incorrect.
Incorrect. While IPsec VPN can be used for certain secure connections, HCX can natively handle the Layer 2 network extension and replication traffic using the connectivity established through paired appliances. Configuring a separate IPsec VPN exclusively for replication is not a mandatory best practice if HCX is already handling the network extension.
- C. Correct.
Correct. HCX Manager appliances must be deployed onsite and in the Oracle Cloud VMware cluster, then paired to enable workload replication. This step is fundamental to establishing the control plane for migration.
- D. Incorrect.
Incorrect. vMotion remains an essential function for live workload migrations. Disabling vMotion would prevent seamless transitions of running workloads and is contrary to HCX best practices for minimal downtime.
- E. Correct.
Correct. HCX Network Extension allows you to extend the same Layer 2 subnet from your data center to OCI. This continuity enables the virtual machines to keep their original IPs during and after migration, minimizing downtime and complexities.