1z0-1151-25 Oracle Cloud Infrastructure 2025 Multicloud Architect Professional Questions and Answers

“Multicloud” refers to using services from multiple cloud providers (e.g., OCI, Azure, GCP) to leverage their unique strengths, enhancing flexibility, resilience, and cost-efficiency. Option A describes hybrid cloud, Option C is single-provider redundancy, and Option D is multi-region deployment—not multicloud. Oracle’s multicloud strategy documentation defines this approach as a key IT management enabler.

Drivers for adopting multicloud architectures typically include redundancy/disaster recovery (ensuring availability across providers), best-of-breed cloud services (leveraging specialized offerings), and cost optimization (balancing expenses across clouds). A Content Delivery Network (CDN) is a specific service for distributing content globally, often provided by cloud vendors, but it is not a strategic driver for adopting a multicloud approach. CDNs can be used within a single cloud or multicloud setup, but they don’t inherently motivate the decision to use multiple clouds. Oracle’s multicloud strategy documentation highlights the other three as primary motivations.

Azure Monitoring services are used to monitor and analyze Oracle Exadata VM Cluster metrics in the Oracle Database@Azure service, integrating seamlessly with Azure’s ecosystem. Microsoft Defender (Option A) is a security tool, not for performance monitoring. OCI Monitoring (Option D) is separate, and no specific “Oracle Database Management Tool” (Option B) is highlighted for this purpose in Azure. Oracle’s multicloud docs confirm Azure Monitoring’s role.

For Oracle Interconnect for Google Cloud, users must select the Partner Interconnect Connection type when creating a VLAN attachment in the GCP console. This type integrates with OCI’s FastConnect via a partner network, enabling private connectivity. “Cross-Cloud Interconnect” (Option B) is not a GCP term, Dedicated Interconnect (Option C) is for direct GCP connections, and VPN (Option D) is unrelated. Oracle’s setup guide specifies Partner Interconnect for this multicloud link.

The OCI-Azure Interconnect is the official Oracle-Microsoft partnership solution for establishing a private, high-bandwidth, and low-latency connection between OCI and Azure. This interconnect leverages Azure ExpressRoute and Oracle FastConnect to create a dedicated network link, bypassing the public internet for enhanced security and performance. A VPN connection (Option A) is possible but less optimal due to higher latency and lower reliability compared to the interconnect. Using the public internet (Option B) is insecure and unsuitable for mission-critical applications. This solution is detailed in Oracle’s multicloud architecture guides and the OCI-Azure partnership documentation, emphasizing its suitability for enterprise multicloud deployments.

The In-Memory Database feature, which accelerates analytics and mixed workloads, is supported across all Oracle Database editions in OCI (e.g., Standard, Enterprise). RAC (Option A), Data Guard (Option C), and Advanced Security (Option D) are edition-specific or require additional licensing/configurations. Oracle’s database feature matrix confirms In-Memory’s universal availability in OCI deployments.

In Oracle Database@Azure, delegated subnets from an Azure VNet are linked to the OCI VCN within OCI pods during the provisioning of the Oracle Exadata VM Cluster. This step occurs in the Azure portal when you specify subnet details, enabling the Exadata infrastructure to communicate with Azure resources. Option A is incorrect as container databases are provisioned later in OCI, not Azure. Option B misplaces this as a prerequisite during account linking, and Option C is too vague, as it references the broader service rather than the specific VM Cluster step. Oracle’s provisioning guide confirms this timing.

For an Autonomous Database in Oracle Database@Google Cloud, backups are stored on Google Cloud Persistent Disks, which provide durable, block-level storage within GCP. OCI Object Storage (Option B) is used for OCI-native deployments, not this Google Cloud-integrated service. Google Cloud Filestore (Option C) is for file storage, not database backups. This is specified in Oracle’s documentation for Database@Google Cloud.

The Oracle Interconnect for Google Cloud is available only in specific regions where Oracle and Google have established cross-cloud interconnect partnerships, such as Ashburn, London, and Frankfurt (as of June 2024 announcements). It’s not globally available across all OCI and GCP regions (Option A), nor restricted to North America (Option C) or FastConnect-only regions (Option D). The partnership leverages OCI FastConnect and GCP Partner Interconnect in these designated locations, as outlined in Oracle’s multicloud connectivity documentation.

The physical architecture of Oracle Database@Azure consists of OCI pods deployed within Azure data centers, fully equipped with OCI infrastructure, Exadata Database Service, and all dependencies, acting as an extension of OCI. Option A incorrectly splits dependencies, Option C misrepresents the pod location, and Option D confuses OCI ADs with Azure zones. Oracle’s architecture docs confirm this co-located, self-contained design.

In a 2-node Real Application Clusters (RAC) DB System in OCI, Fault Domains (FDs) within a single Availability Domain (AD) are used to distribute nodes, ensuring fault isolation at the hardware level (e.g., separate racks/power). Availability Domains (Option A) provide broader isolation but are overkill for a 2-node setup within one region. Local/Remote regions (Options B and D) are geographic, not instance-specific. Oracle’s HA documentation recommends FDs for RAC.

The Oracle Base Database Service in OCI leverages Availability Domains (ADs) and Fault Domains (FDs) to ensure high availability (HA) and disaster recovery (DR). ADs are isolated data centers within a region, preventing single points of failure, while FDs are subdivisions within an AD, further isolating hardware for redundancy. Availability Sets and Zones (Options A and B) are Azure-specific terms, and Geography (Option C) is too vague. OCI’s architecture documentation confirms ADs and FDs as the foundation for HA/DR in database services.

Upgrading the existing Oracle Interconnect for Google Cloud bandwidth during surges and downgrading afterward meets the need for scalability and minimal disruption. This leverages the existing FastConnect and Partner Interconnect setup, avoiding new configurations like additional virtual circuits with ECMP (Option A), which adds complexity. VPN (Option C) and public internet (Option D) lack the performance and reliability of the interconnect. Oracle’s documentation supports dynamic bandwidth adjustments for such scenarios.