1Z0-1123-25 Question 81
Select 2You are helping a multinational financial services company migrate its on-premises VMware environment to Oracle Cloud Infrastructure using Hybrid Cloud Extension (HCX). The customer needs to maintain near-zero downtime for critical workloads throughout the migration and enable seamless failback testing. Which two actions should you take to properly set up and perform HCX migrations with minimal downtime?
- A
Deploy an HCX Manager in both the on-premises VMware environment and the Oracle Cloud VMware Solution SDDC, then pair them to manage migrations.
- B
Configure an HCX Layer 2 network extension for all relevant VLAN segments on-premises to extend those networks into the Oracle Cloud environment.
- C
Use an Oracle Cloud Infrastructure load balancer to route vMotion traffic from on-premises directly to the SDDC over an HTTP-based tunnel.
- D
Shut down all virtual machines before initiating the HCX migration to avoid network conflicts over extended segments.
Show answer and explanation
Correct answers: A, B
Explanation
Hybrid Cloud Extension (HCX) helps enterprises migrate workloads to Oracle Cloud Infrastructure while minimizing downtime. The HCX Manager must be deployed in both on-premises and cloud environments, and Layer 2 network extension is required to maintain IP addressing for applications. Oracle documentation on HCX with Oracle Cloud VMware Solution details how to install the HCX Manager, pair sites, and extend networks to enable live vMotion-based migrations. Using a load balancer for vMotion traffic or powering down VMs are common misconceptions; HCX directly manages tunnel creation for live migrations, ensuring minimal service disruption.
- A. Correct.
Correct. For HCX to facilitate live migrations, you need HCX Manager installed on both sides (on-premises and Oracle Cloud) and properly paired. This configures the connectivity and orchestration for HCX-based migrations, including vMotion and replication.
- B. Correct.
Correct. Extending Layer 2 networks with HCX allows workloads to maintain their original IP addresses and minimizes downtime during migration. This is essential for seamless failover and failback.
- C. Incorrect.
Incorrect. While an OCI load balancer is useful for many services, it is not designed to handle vMotion traffic. HCX handles migration traffic through its own tunnels, not via a standard load balancer.
- D. Incorrect.
Incorrect. One major benefit of HCX is the ability to migrate VMs live, without shutting them down. Powering off VMs is usually necessary only for offline migration scenarios, not for live vMotion-based migrations.