Important Oracle 1Z0-1151-25 Exam Questions

Answer: D

Explanation:

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.

Answer: C

Explanation:

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.

Answer: D

Explanation:

A Site-to-Site VPN in OCI requires a Dynamic Routing Gateway (DRG) in the VCN, Customer Premises Equipment (CPE) at the on-premises site, and an IPsec tunnel for secure connectivity. Internet Gateway (Options A and C) is for public access, not VPNs, and NAT Gateway (Options A and B) is unrelated. Oracle's VPN setup guide specifies DRG, CPE, and IPsec as the core components. The original answer (C) was incorrect; D is correct per OCI standards.

Answer: C

Explanation:

Setting up the Oracle virtual circuit for OCI-Azure Interconnect requires both primary and secondary pairs of BGP IP addresses to ensure redundancy and failover in dynamic routing. A single pair (Option A) lacks resilience, no BGP (Option B) contradicts the interconnect's routing design, and a secondary-only pair (Option D) is incomplete. Oracle's networking guide mandates this dual-pair configuration.

Answer: A

Explanation:

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.