1Z0-1123-25 Sample Questions & Answers
Questions span designing migrations with the Oracle Cloud Migrations service, the biggest weight, plus moving databases to OCI, the Oracle Cloud VMware Solution, networking considerations for migrations, shifting containerized workloads, and cross-region replication.
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- Question 1Beginner
Fundamentals of Cloud Migrations · 6Rs of migration
Which of the following scenarios best describes a 'Retire' migration strategy?
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Correct answer: C
Retire involves identifying IT assets that are no longer useful or needed (e.g., redundant legacy systems) and turning them off without migrating them. This reduces the migration scope and TCO.
- Question 2Intermediate
OCI Networking Services for Migrations · OCI Connectivity options
You are designing the network architecture for a large-scale migration of a transactional banking system to OCI. The system requires consistent 5 Gbps throughput and strict SLA guarantees for latency. The security team mandates that traffic must not traverse the public internet. Which connectivity option should you recommend?
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Correct answer: C
FastConnect provides dedicated, private connectivity with consistent performance and SLAs, bypassing the public internet. For 5 Gbps consistent throughput and strict latency requirements, FastConnect is superior to VPN (which runs over the internet and varies in performance). Private Peering allows access to private IPs in the VCN.
- Question 3Advanced
OCI Networking Services for Migrations · OCI Connectivity options
An organization has established an OCI FastConnect link for their migration. However, their security compliance standard requires all data in transit to be encrypted at Layer 3 using IPSec, even over private dedicated links. What is the correct configuration to achieve this?
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Correct answer: C
OCI supports running IPSec VPN over FastConnect. You establish the FastConnect virtual circuit (Private Peering) first, and then configure the Site-to-Site VPN to use the FastConnect path (routing via DRG) rather than the internet. This provides the performance of FastConnect with the Layer 3 encryption of IPSec.
- Question 4Intermediate
Design and Implement Migrations Using Oracle Cloud Migrations Service · Design and implement the discovery, inventory, planning, and assessment tasks for migration
You are using Oracle Cloud Migrations (OCM) service to migrate a fleet of VMware virtual machines to OCI. During the discovery phase, you need to deploy the OCM Remote Agent Appliance. Which of the following statements correctly describes a requirement for this appliance?
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Correct answer: C
The OCM Remote Agent Appliance is an OVA file that must be deployed as a VM in the source vCenter environment. It acts as the bridge, collecting inventory data from vCenter and replicating data to OCI. It requires network connectivity to both the vCenter Server (to read metadata/snapshots) and OCI (to upload data).
- Question 5Intermediate
Design and Implement Migrations Using Oracle Cloud Migrations Service · Design and implement the discovery, inventory, planning, and assessment tasks for migration
A customer is migrating 200 virtual machines from an on-premises data center to OCI using the Oracle Cloud Migrations (OCM) service. They have completed the discovery phase. What is the next logical step in the OCM workflow before replication can begin?
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Correct answer: C
After Discovery (where assets are identified), the next step is to create a Migration Project. Within the project, you create a Migration Plan. This plan analyzes the inventory, performs right-sizing logic, checks compatibility, and estimates costs. Only after a plan is approved/finalized do you proceed to configure replication.
- Question 6Advanced
Design and Implement Migrations Using Oracle Cloud Migrations Service · Perform replication and execution tasks for migration
You are configuring a Replication Policy in Oracle Cloud Migrations (OCM) for a critical production workload. The requirement is to have a Recovery Point Objective (RPO) of 1 hour. How does OCM handle the replication schedule to meet this requirement?
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Correct answer: B
OCM replication is snapshot-based. The Replication Policy defines the frequency (schedule) at which OCM instructs the source (e.g., vSphere) to take a snapshot. This snapshot's delta data is then transferred to OCI. To meet a 1-hour RPO, the schedule must be set to replicate at least every hour.
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