1Z0-1151-25 Oracle Cloud Infrastructure 2025 Multicloud Architect Professional Practice Questions
Prepare for 1Z0-1151-25 with more than an answer.
- Exam fee
- $245 USD
- Level
- Professional
- Valid for
- 24 months
Domains covered on the exam 5
- Introduction to Multicloud10%
- Core OCI Services Overview20%
- Configure Multicloud Connection Options20%
- Implement Oracle Database@Azure30%
- Implement Oracle Database@Google Cloud20%
- 1
Which OCI networking component acts as a virtual router connecting your VCN to your on-premises network (via IPSec VPN or FastConnect) and to other VCNs via peering?
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Correct answer: A
The Dynamic Routing Gateway (DRG) is the central hub for private connectivity in OCI. It attaches to VCNs, FastConnect virtual circuits, and IPSec VPN tunnels to facilitate routing between them.
- 2
You are tasked with securing a multicloud database deployment. You need to control traffic at the VNIC level for the database compute instances, allowing ingress only from specific Azure VNet subnets. Which OCI capability should you use?
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Correct answer: A
Network Security Groups (NSGs) allow you to define security rules that apply to specific VNICs (Virtual Network Interface Cards). Unlike Security Lists, which apply to an entire subnet, NSGs provide granular control, allowing you to specify rules for individual database instances to accept traffic from specific Azure CIDR ranges.
- 3
True or False: Oracle Autonomous Database on Shared Infrastructure allows you to access the operating system (OS) of the underlying Exadata nodes to install custom monitoring agents.
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Correct answer: B
False. Oracle Autonomous Database is a fully managed service. Oracle manages the operating system, patching, and infrastructure. Customers do not have root or OS-level access to the underlying Exadata nodes.
- 4
You are troubleshooting a DNS resolution issue in a multicloud environment. An application in Azure cannot resolve the hostname of a private Oracle Autonomous Database in OCI. The OCI VCN and Azure VNet are connected via Interconnect. What is the most likely missing configuration?
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Correct answer: A
By default, Azure VNet DNS cannot resolve OCI private hostnames. You must configure a DNS Private Zone or a Conditional Forwarder in Azure DNS to forward queries for the OCI domain (e.g.,
subnet.vcn.oraclevcn.com) to the IP address of the OCI VCN's Private DNS Resolver (listening endpoint). Similarly, OCI needs a forwarding rule to resolve Azure hostnames. - 5
A multinational financial institution is designing a split-stack architecture. The application tier resides in Microsoft Azure East US, and the database tier requires Oracle Exadata performance. The Chief Technology Officer (CTO) mandates that the network latency between the application and database must be consistently below 2 milliseconds to support high-frequency trading algorithms. Which multicloud solution meets this strict latency requirement?
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Correct answer: C
Oracle Database@Azure places the Exadata hardware physically within the Microsoft Azure data centers. This colocation eliminates the cross-cloud network hop required by the Interconnect or Cloud@Customer solutions, effectively treating the database as a local resource within the Azure VNet, thereby guaranteeing the sub-2ms latency required for high-frequency trading. While Oracle Interconnect provides low latency (typically <2ms), it physically traverses between data centers, which introduces slightly more jitter than the collocated Database@Azure solution.
- 6
An organization is evaluating multicloud strategies to mitigate the risk of vendor lock-in. They want to leverage best-of-breed services: Google Cloud for AI/ML analytics and OCI for high-performance Autonomous Data Warehousing. Which architectural pattern best supports this requirement while maintaining data sovereignty within a specific geographic region?
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Correct answer: A
A split-stack architecture involves running different tiers or components of an application (like the database and the analytics engine) in different clouds to leverage the specific strengths ('best-of-breed') of each provider. By keeping both clouds within the same geographic region (e.g., OCI London and GCP London) connected via Oracle Interconnect for Google Cloud, data sovereignty requirements are met while optimizing service capabilities.
