1Z0-1123-25 sample questions

Question 1

You are advising a financial institution on their cloud migration strategy. They have a legacy monolithic application running on an unsupported OS version that cannot be upgraded. The application is critical but stable, with no new feature requirements. The customer requires the application to be moved to the cloud to evacuate the data center, but code changes are strictly prohibited due to lack of developer resources. Which of the '6 Rs' of migration is the most appropriate strategy for this specific workload?

Accepted Answer

Rehost

Answer

Refactor

Answer

Replatform

Answer

Retain

Question 2

A multinational logistics company is planning a phased migration of 500 applications to OCI. To mitigate risk, you are designing the migration waves. Which approach represents the industry best practice for structuring these waves?

Accepted Answer

Group applications by technical complexity and dependency, starting with a 'Pilot' wave of low-complexity, non-critical applications, followed by waves of increasing complexity.

Answer

Group applications by business unit, starting with the most critical revenue-generating unit to demonstrate value early.

Answer

Group applications based on their Operating System, migrating all Linux servers first, followed by all Windows servers.

Answer

Migrate all database layers in the first wave, followed by application layers in the second wave to ensure data is available first.

Question 3

Which of the following scenarios best describes a 'Retire' migration strategy?

Accepted Answer

Identifiying that 20% of the server fleet hosts a legacy reporting tool that has been superseded by a SaaS solution, and decommissioning these servers.

Answer

Moving an application to OCI but turning it off until it is needed for archival purposes.

Answer

Keeping a mainframe application on-premises because it is too complex to migrate.

Answer

Replacing a self-managed Oracle Database with OCI Autonomous Database.

Question 4

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?

Accepted Answer

OCI FastConnect with a Private Peering virtual circuit.

Answer

OCI FastConnect with a Public Peering virtual circuit.

Answer

Internet Gateway with a Network Security Group strictly filtering source IPs.

Answer

OCI Site-to-Site VPN with multiple IPSec tunnels using ECMP.

Question 5

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?

Accepted Answer

Establish a Site-to-Site VPN connection and configure it to route traffic over the FastConnect Private Peering Virtual Circuit using the DRG.

Answer

Use TLS 1.2 for all application-level traffic; Layer 3 encryption is not supported on FastConnect.

Answer

Configure MACsec encryption on the FastConnect physical cross-connects.

Answer

Enable the 'Encryption-in-Transit' checkbox on the FastConnect Virtual Circuit settings in the OCI Console.

Question 6

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?

Accepted Answer

It must be deployed as a virtual machine within the source VMware vCenter environment and requires connectivity to OCI and the vCenter Server.

Answer

It must be installed on a bare metal server with direct internet access.

Answer

It requires the installation of a proprietary agent inside every guest OS that is being migrated.

Answer

It acts as a target storage location and must have enough local storage to hold 100% of the migrated data.

Free 1Z0-1123-25 sample questions

A multinational logistics company is planning a phased migration of 500 applications to OCI. To mitigate risk, you are designing the migration waves. Which approach represents the industry best practice for structuring these waves?

Which of the following scenarios best describes a 'Retire' migration strategy?

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?

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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