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Oracle 1z0-1084-26 Exam Syllabus Topics:

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

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                                                        Oracle Cloud Infrastructure Developer Professional Sample Questions (Q49-Q54):

                                                        NEW QUESTION # 49
                                                        What can you use to dynamically make Kubernetes resources discoverable to public DNS servers? (Choose the best answer.)

                                                        Answer: B

                                                        Explanation:
                                                        To dynamically make Kubernetes resources discoverable to public DNS servers, you can use ExternalDNS.
                                                        ExternalDNS is a Kubernetes add-on that automates the management of DNS records for your Kubernetes services and ingresses. It can be configured to monitor the changes in your Kubernetes resources and automatically update DNS records in a supported DNS provider. By integrating ExternalDNS with your Kubernetes cluster, you can ensure that the DNS records for your services and ingresses are automatically created, updated, or deleted based on changes in your Kubernetes resources. This allows your Kubernetes resources to be discoverable by external systems through public DNS servers.


                                                        NEW QUESTION # 50
                                                        Which annotation is required in a Kubernetes Service manifest of type LoadBalancer to provision a private load balancer rather than a public load balancer?

                                                        Answer: A

                                                        Explanation:
                                                        Oracle ' s OKE documentation explicitly specifies the annotation service.beta.kubernetes.io/oci-load-balancer- internal: " true " when a Kubernetes Service of type LoadBalancer must provision an internal OCI Load Balancer with a private IP address. The annotation is placed in the Service manifest ' s metadata.annotations section. If an alternative subnet must host the private load balancer, Oracle allows an additional subnet annotation, but the oci-load-balancer-internal setting remains the control that requests internal rather than public exposure. The annotation names in B, C, and D are not the documented OCI Load Balancer annotations for this purpose. Therefore, option A is the required configuration for creating a private/internal OCI Load Balancer through an OKE Kubernetes Service manifest.


                                                        NEW QUESTION # 51
                                                        You are creating an API deployment in Oracle Cloud Infrastructure (OCI) API Gateway and you want to configure request policies to control access. Which is NOT available in OCI API Gateway?

                                                        Answer: A

                                                        Explanation:
                                                        The correct answer is: Controlling access to the backend OCI resources. OCI API Gateway does not provide direct control over access to backend OCI resources. It primarily focuses on managing and securing access to APIs exposed through the gateway. The gateway acts as a front-end for APIs and provides features such as authentication, authorization, rate limiting, and CORS support. While you can configure authentication and authorization policies, limit the number of requests, and enable CORS support in OCI API Gateway, it does not directly control access to backend OCI resources. Access to backend resources is typically managed through other means, such as IAM policies, network security rules, or resource-specific access controls.


                                                        NEW QUESTION # 52
                                                        Which statement is NOT valid regarding custom metrics and the OCI Monitoring PostMetricData API?

                                                        Answer: C

                                                        Explanation:
                                                        Statement C is invalid because Oracle permits custom metrics to be postedas frequently as every second. The one-minute value applies to the minimum aggregation interval when metric data is subsequently queried, not to the ingestion frequency. Oracle also verifies the remaining statements. PostMetricData requires timestamps to be less than two hours in the past and less than ten minutes in the future. Custom namespaces must not use reserved prefixes such as oci_ or oracle_. The API additionally allows a maximum of 20 dimensions per metric group in a single posting operation. Therefore, interpreting one minute as the minimum interval between raw metric submissions incorrectly confuses ingestion frequency with Monitoring ' s aggregation
                                                        /query interval. Option C is consequently the NOT valid statement.


                                                        NEW QUESTION # 53
                                                        With the volume of communication that can happen between different components in cloud-native applications, it is vital to not only test functionality, but also service resiliency. Which statement is true regarding service resiliency?

                                                        Answer: D

                                                        Explanation:
                                                        The correct answer is: " Resiliency is about recovering from failures without downtime or data loss. " Service resiliency, in the context of cloud-native applications, is the ability of a service or system to recover from failures and continue functioning without downtime or data loss. It involves designing and implementing mechanisms to handle failures, such as network outages, hardware failures, or software errors, in a way that minimizes the impact on the overall system. The goal of resiliency is to ensure that the application or service can continue to operate and provide a certain level of functionality, even in the face of failures. This typically involves techniques such as redundancy, fault tolerance, and graceful degradation. By implementing resiliency measures, a cloud-native application can recover and adapt to failures, maintain availability, and preserve data integrity. The other statements are not accurate regarding service resiliency: Resiliency is not about not bringing a service to a functioning state after a failure. Instead, it is about recovering from failures and ensuring continued functionality. Resiliency is not about avoiding failures entirely. While it is desirable to prevent failures, resiliency focuses on the ability to handle and recover from failures when they do occur.
                                                        Resiliency testing is not limited to a test environment. It is important to test and validate the resiliency measures in both test environments and production environments to ensure the application can effectively handle failures in real-world scenarios.


                                                        NEW QUESTION # 54
                                                        ......

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