Expert Answers to Oracle Exam 1z0-1084-26 Questions

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Oracle Cloud Infrastructure Oracle Cloud Infrastructure Developer Professional

Oracle Cloud Infrastructure Developer Professional

Last Update Sep 24, 2026
Total Questions : 180

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Questions 2

You are planning the migration of a legacy monolithic billing application to a cloud-native architecture on Oracle Cloud Infrastructure. The application currently relies on a centralized relational database and synchronous local procedure calls, and you must address the primary architectural challenges associated with transitioning to a distributed microservices model.

Which TWO statements represent valid engineering challenges or design strategies that must be considered during this cloud-native migration?

Options:

Implementing microservices requires adopting eventual consistency patterns, such as the Saga pattern, because distributed databases cannot easily maintain synchronous transactions across service boundaries.

Transitioning to microservices increases the operational complexity of the application, necessitating centralized logging and distributed tracing to troubleshoot service-to-service communication.

By default, OCI ensures that all distributed containerized microservices automatically share a single, global transaction state across different compartments without any application-level coding.

Monolithic databases migrated to OCI Object Storage will automatically scale horizontally and support distributed transactions natively for all microservices.

Cloud-native microservices must communicate using synchronous REST APIs exclusively, as asynchronous event-driven communication is not supported within OCI.

Discussion 0

Questions 3

As a Cloud Native developer, you have written a web service for your company. However, your security team has suggested that your web service should address Distributed Denial-of-Service (DDoS) attack. You are time-constrained and you need to ensure that this is implemented as soon as possible. What should you do in this scenario? (Choose the best answer.)

Options:

Use a third party service integration to Implement DDoS attack mitigation.

Re-write your web service and implement rate limiting.

Use the OCI Virtual Cloud Network (VCN) segregation to control DDoS.

Use the OCI API Gateway service and configure rate limiting.

Discussion 0

Questions 4

You are developing a real-time monitoring application for a fleet of vehicles, which will be deployed on Oracle Cloud Infrastructure (OCI). You need to choose between using OCI Queue or OCI Streaming to handle the real-time data feeds from the vehicles. Based on the scenario described, which is the most appropriate choice for handling real-time data feeds?

Options:

OCI Streaming, because it is designed for high-volume, continuous ingestion and processing of data, making it the best choice for a fleet of vehicles

OCI Streaming, because it offers exactly-once message delivery, which is necessary for real-time applications

OCI Queue, because it is optimized for low-latency messaging and ideal for real-time applications

OCI Queue, because it provides at-least-once message delivery, which is critical for real-time monitoring applications

Discussion 0

Questions 5

Your organization has mandated strict IAM policy isolation for microservices accessing an Oracle Cloud Infrastructure (OCI) Queue named payment-queue in a compartment named prod-payment-compartment. A producer microservice deployed on an OCI Compute instance needs to publish transaction messages into the queue, but corporate security dictates that this microservice must not have permission to view queue configurations, delete queues, or read/consume messages. You have created a dynamic group named payment-producer-dg that contains the Compute instance hosting the producer microservice.

Which IAM policy statement must you write to satisfy this security requirement with the least privilege?

Options:

Allow dynamic-group payment-producer-dg to use queue-push in compartment prod-payment-compartment

Allow dynamic-group payment-producer-dg to use queues in compartment prod-payment-compartment

Allow dynamic-group payment-producer-dg to manage queue-push in compartment prod-payment-compartment

Allow dynamic-group payment-producer-dg to use queue-pull in compartment prod-payment-compartment

Discussion 0

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