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Oracle 1z0-1084-26 Exam Syllabus Topics:

SectionWeightObjectives
Leveraging Serverless Technologies for Cloud Native Development33%- OCI Queue
  • 1. Facilitate asynchronous messaging for microservices with OCI Queue
    - OCI Streaming
    • 1. Create integration between systems using OCI Streaming Service
      - API Gateway
      • 1. Create API gateways to process traffic from API clients and route it to back-end services
        - Oracle Functions
        • 1. Develop serverless applications with Oracle Functions
          - OCI Events
          • 1. Build event-driven serverless applications using OCI Events Service
            Monitoring & Troubleshooting Cloud Native Applications10%- Monitoring, Logging, and Tracing
            • 1. Perform tasks around monitoring, logging, and tracing
              - OCI Logging
              • 1. Use OCI Logging Service to enable, manage, and search logs
                - OCI Monitoring
                • 1. Utilize OCI Monitoring Service to view metrics
                  Testing and Securing Cloud Native Applications13%- Cloud Native Testing
                  • 1. Analyze and evaluate cloud native testing methodologies and develop effective strategies for testing cloud native applications
                    - OCI Vault
                    • 1. Use OCI Vault to securely store and manage encryption keys and sensitive configuration information
                      - Cloud Native Security
                      • 1. Apply security measures to overcome challenges with cloud native development
                        Cloud Native Applications and Containerization33%- OCI Registry
                        • 1. Use OCI Registry to pull and push container images
                          - Oracle Kubernetes Engine
                          • 1. Develop and deploy containerized applications on Oracle Kubernetes Engine
                            - Container Orchestration
                            • 1. Discuss the role of container orchestration
                              - Docker and Containerization
                              • 1. Explain Docker and the concepts around its architecture and components
                                Cloud Native Fundamentals11%- Microservices Architecture
                                • 1. Explain the microservices architecture and discuss the design methodology of microservices
                                  - Cloud Native Principles
                                  • 1. Explain the fundamentals of cloud native and discuss the key pillars of cloud native development

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                                    Oracle Cloud Infrastructure Developer Professional Sample Questions (Q62-Q67):

                                    NEW QUESTION # 62
                                    Which TWO statements are correct regarding Docker images and containers? (Choose two.)

                                    Answer: B,C

                                    Explanation:
                                    Which TWO statements are correct regarding Docker images and containers? (Choose two.) Writing and building a new Dockerfile is the only way you can create new Docker images. A container can exist without an image but an image cannot exist without a container. Only one container can be spawned from a given image at a time. If multiple containers are spawned from the same image, then they all use the same copy of that image in memory. (Correct) An image is a collection of immutable layers whereas a container is a running instance of an image. (Correct) ChatGPT The correct statements regarding Docker images and containers are: If multiple containers are spawned from the same image, then they all use the same copy of that image in memory. This statement is correct. When multiple containers are created from the same Docker image, they share the underlying layers of the image in memory. Each container has its own isolated filesystem and runtime environment, but they all use the same base image, which helps in efficient resource utilization. An image is a collection of immutable layers whereas a container is a running instance of an image. This statement is also correct. Docker images are composed of multiple layers, with each layer representing a specific change or addition to the previous layer. These layers are read-only and can be shared among multiple containers. On the other hand, a container is a lightweight and isolated runtime instance created from a specific image. It is a running process that has its own filesystem, network, and runtime configuration. The statements " Writing and building a new Dockerfile is the only way you can create new Docker images " and " A container can exist without an image but an image cannot exist without a container " are incorrect. Docker images can be created in various ways, including using Dockerfiles, importing from existing images, or pulling from registries. Additionally, a container requires an image to run, so an image must exist before a container can be created from it.


                                    NEW QUESTION # 63
                                    You have been asked to update an OKE cluster to a network configuration that has the least attack surface while the deployed applications are still directly available for access from the Internet. Which is a valid OKE cluster network configuration that meets this requirement? (Choose the best answer.)

                                    Answer: D

                                    Explanation:
                                    The valid OKE cluster network configuration that meets the requirement of having the least attack surface while still allowing direct access to the deployed applications from the Internet is: Private subnets for nodes and the Kubernetes API endpoint; public subnets for load balancers. By placing the nodes and the Kubernetes API endpoint in private subnets, they are not directly accessible from the Internet, reducing the attack surface.
                                    The load balancers, on the other hand, are placed in public subnets, allowing them to be accessed from the Internet and serve as the entry point for accessing the deployed applications. This configuration ensures that the critical components of the cluster, such as the nodes and the API endpoint, are protected within the private network, while still providing accessibility to the applications through the load balancers. It helps to enhance security by limiting direct access to the internal components of the cluster while maintaining the availability of the deployed applications.


                                    NEW QUESTION # 64
                                    Which statement is NOT valid regarding log retention periods in the Oracle Cloud Infrastructure (OCI) Logging service?

                                    Answer: B

                                    Explanation:
                                    Statement D is NOT valid because OCIAudit logs are retained for 365 days, not 180 days. Oracle states that Audit retention is a tenancy-level setting affecting all regions and compartments and that its value cannot be changed. By contrast, OCI Logging service and custom logs support configurable retention in 30-day increments up to 180 days. Oracle also confirms that reducing a log ' s retention period makes existing data outside the new retention window unavailable and unsearchable. Therefore, the question intentionally distinguishes configurable Logging retention from the fixed OCI Audit retention model. The incorrect portion of D is specifically the stated 180-day duration; OCI Audit uses a 365-day retention period.


                                    NEW QUESTION # 65
                                    You are instructed to automate manual tasks and help software teams manage complex environments at scale using the Oracle Cloud Infrastructure (OCI) services. Which THREE OCI services can be leveraged to securely store and version your application ' s source code, and automate the building, testing, and deployment of applications to the OCI platform? (Choose three.)

                                    Answer: B,C,D

                                    Explanation:
                                    The three OCI services that can be leveraged to securely store and version your application ' s source code, and automate the building, testing, and deployment of applications to the OCI platform are: DevOps: OCI provides a comprehensive set of DevOps services, including Oracle Developer Cloud Service, which allows you to manage source code repositories, automate builds and testing, and streamline the deployment process.
                                    Container Engine for Kubernetes: OCI ' s Container Engine for Kubernetes (OKE) enables you to deploy and manage containerized applications using Kubernetes. It provides a scalable and reliable platform for automating the deployment of your applications. Oracle Cloud Infrastructure Registry: OCI Registry is a fully managed, private container registry that allows you to securely store and manage Docker images. It integrates with other OCI services, such as Container Engine for Kubernetes, to facilitate seamless deployment and orchestration of containerized applications. These services combined provide the necessary tools and infrastructure to support continuous integration and continuous deployment (CI/CD) workflows, enabling efficient and automated application development and deployment processes in the Oracle Cloud Infrastructure environment.


                                    NEW QUESTION # 66
                                    You encounter an unexpected error when invoking Oracle Functions from your Cloud Shell session named myfunction in the myapp application. Which option will get you more information on the error?

                                    Answer: A

                                    Explanation:
                                    The option that will get you more information on the error when invoking Oracle Functions from your Cloud Shell session is: " DEBUG=1 fn invoke myapp myfunction " . Setting the environment variable DEBUG=1 before invoking the function using the fn command allows you to enable debug mode, which provides more detailed information about the execution of the function. This can be useful for troubleshooting and understanding the root cause of the error. By using the command " DEBUG=1 fn invoke myapp myfunction "
                                    , the function invocation will be executed with debug mode enabled, and additional debug information will be displayed in the console output. This information can include stack traces, detailed error messages, and other relevant details that can help identify and resolve the issue. Using the verbose option (--verbose) or debug option (--debug) with the fn command may also provide additional information, but the specific behavior may depend on the version and configuration of the fn CLI tool. While contacting Oracle support with the error message is always an option, enabling debug mode using the DEBUG=1 environment variable provides immediate access to more detailed information and can help in diagnosing and resolving the error more efficiently.


                                    NEW QUESTION # 67
                                    ......

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