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Oracle 1z0-1084-26 Exam Syllabus Topics:

SectionWeightObjectives
Cloud Native Fundamentals11%- Microservices Architecture
  • 1. Microservices design methodology
    • 2. Microservices architecture
      - Cloud Native Principles
      • 1. Key pillars of cloud native development
        • 2. Fundamentals of cloud native development
          Monitoring and Troubleshooting Cloud Native Applications10%- Monitoring, Logging, and Tracing
          • 1. Troubleshoot cloud native applications
            • 2. Perform monitoring, logging, and tracing tasks
              - OCI Monitoring
              • 1. Use OCI Monitoring to view metrics
                - OCI Logging
                • 1. Enable and manage logs
                  • 2. Search and analyze logs
                    Testing and Securing Cloud Native Applications13%- Cloud Native Security
                    • 1. Apply security measures for cloud native development
                      • 2. Use OCI Vault to securely manage encryption keys
                        • 3. Manage sensitive configuration information
                          - Cloud Native Testing
                          • 1. Testing strategies for cloud native applications
                            • 2. Cloud native testing methodologies
                              Cloud Native Applications and Containerization33%- Docker and Containerization
                              • 1. Docker architecture and components
                                • 2. Containerization concepts
                                  - Container Orchestration
                                  • 1. Role of container orchestration
                                    • 2. Deploy containerized applications on Oracle Kubernetes Engine
                                      - Oracle Cloud Infrastructure Registry
                                      • 1. Pull container images from OCIR
                                        • 2. Push container images to OCIR
                                          Leveraging Serverless Technologies for Cloud Native Development33%- API Gateway
                                          • 1. Process traffic from API clients
                                            • 2. Route API traffic to backend services
                                              - Oracle Functions
                                              • 1. Develop serverless applications with Oracle Functions
                                                - OCI Streaming
                                                • 1. Use streaming for serverless and managed application architectures
                                                  • 2. Integrate systems using OCI Streaming
                                                    - OCI Events
                                                    • 1. Build event-driven serverless applications
                                                      - OCI Queue
                                                      • 1. Implement asynchronous messaging for microservices

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                                                        Oracle Cloud Infrastructure Developer Professional Sample Questions (Q16-Q21):

                                                        NEW QUESTION # 16
                                                        Which testing strategy achieves high velocity of deployments and releases of cloud native applications?
                                                        (Choose the best answer.)

                                                        Answer: A

                                                        Explanation:
                                                        The testing strategy that achieves high velocity of deployments and releases of cloud native applications is " Automated testing. " Automated testing involves the use of automated tools and frameworks to execute tests, validate functionality, and detect issues or bugs in an application. By automating the testing process, developers and DevOps teams can rapidly test and validate code changes, ensuring that new features and updates are functioning correctly before being deployed to production. This approach helps increase the speed and efficiency of the testing process, allowing for faster and more frequent deployments of cloud native applications.


                                                        NEW QUESTION # 17
                                                        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.)

                                                        Answer: C

                                                        Explanation:
                                                        The correct answer in this scenario is to use the OCI API Gateway service and configure rate limiting. Using the OCI API Gateway service and configuring rate limiting is an effective approach to address Distributed Denial-of-Service (DDoS) attacks. By implementing rate limiting, you can control the number of requests that can be made to your web service within a specific time frame. This helps to prevent overload and ensures that your service can handle legitimate traffic while mitigating the impact of DDoS attacks. By leveraging the OCI API Gateway service, you can easily configure rate limiting rules to restrict the number of requests per second or per minute. This allows you to set appropriate thresholds and safeguard your web service from being overwhelmed by excessive requests. The API Gateway acts as a protective layer, filtering out malicious traffic and ensuring the smooth operation of your service. While options like OCI Virtual Cloud Network (VCN) segregation and third-party service integrations may contribute to overall security, they do not specifically address DDoS attacks as efficiently as rate limiting. VCN segregation focuses more on network segmentation and isolation, while third-party service integration may introduce additional dependencies and complexities.
                                                        Re-writing your web service and implementing rate limiting is a viable option, but it may not be feasible considering the time constraints mentioned. Leveraging the OCI API Gateway service provides a quicker and easier solution to implement DDoS attack mitigation through rate limiting.


                                                        NEW QUESTION # 18
                                                        A service you are deploying to Oracle Cloud Infrastructure (OCI) Container Engine for Kubernetes (OKE) uses a docker image from a private repository in OCI Registry (OCIR). Which configuration is necessary to provide access to this repository from OKE?

                                                        Answer: D


                                                        NEW QUESTION # 19
                                                        Which TWO are characteristics of microservices? (Choose two.)

                                                        Answer: C,E

                                                        Explanation:
                                                        The two characteristics of microservices are: Microservices can be independently deployed: One of the key principles of microservices architecture is the ability to independently deploy each microservice. This means that changes or updates to one microservice can be made and deployed without affecting other microservices.
                                                        It allows for faster and more frequent deployments, enabling agile development and scalability. Microservices communicate over lightweight APIs: Microservices communicate with each other through lightweight APIs (Application Programming Interfaces). This enables loose coupling between microservices, as they can interact with each other using standard protocols like HTTP/REST or messaging systems like RabbitMQ or Kafka. Lightweight APIs facilitate flexibility and interoperability between microservices, making it easier to develop and maintain complex systems. The remaining statement, " All microservices share a data store, " is not a characteristic of microservices. Microservices are designed to be autonomous and have their own data storage or database. Each microservice has its own data store, which promotes the principle of bounded contexts and avoids tight coupling between services. This allows for better scalability and independence of data management within each microservice.


                                                        NEW QUESTION # 20
                                                        Which cursor type allows a consumer to start reading messages from the oldest available record still within a stream ' s retention period?

                                                        Answer: C

                                                        Explanation:
                                                        Oracle Streaming defines TRIM_HORIZON as the cursor type that starts consumption from theoldest available message in the stream. Because Streaming retains messages only for the configured retention period,
                                                        "oldest available" means the earliest record that has not yet aged out of retention. Oracle specifically recommends creating a cursor at TRIM_HORIZON when a consumer needs to process all currently retained messages. LATEST starts with messages published after the cursor is created. AT_TIME begins at or after a specified timestamp, while AFTER_OFFSET begins after an explicitly supplied partition offset.
                                                        Consequently, none of those alternatives guarantees starting from the earliest retained record.
                                                        TRIM_HORIZON is therefore the correct cursor for replaying the complete message history that remains available in the stream.


                                                        NEW QUESTION # 21
                                                        ......

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