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Oracle 1z0-1084-26 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: 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
      Topic 2: Cloud Native Applications and Containerization33%- Docker and Containerization
      • 1. Explain Docker and the concepts around its architecture and components
        - 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
              Topic 3: 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
                - Cloud Native Security
                • 1. Apply security measures to overcome challenges with cloud native development
                  - OCI Vault
                  • 1. Use OCI Vault to securely store and manage encryption keys and sensitive configuration information
                    Topic 4: Leveraging Serverless Technologies for Cloud Native Development33%- OCI Queue
                    • 1. Facilitate asynchronous messaging for microservices with OCI Queue
                      - Oracle Functions
                      • 1. Develop serverless applications with Oracle Functions
                        - OCI Events
                        • 1. Build event-driven serverless applications using OCI Events Service
                          - 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
                              Topic 5: Monitoring & Troubleshooting Cloud Native Applications10%- OCI Logging
                              • 1. Use OCI Logging Service to enable, manage, and search logs
                                - OCI Monitoring
                                • 1. Utilize OCI Monitoring Service to view metrics
                                  - Monitoring, Logging, and Tracing
                                  • 1. Perform tasks around monitoring, logging, and tracing

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                                    Oracle Cloud Infrastructure Developer Professional Sample Questions (Q80-Q85):

                                    NEW QUESTION # 80
                                    Which statement about microservices is FALSE?

                                    Answer: C

                                    Explanation:
                                    The correct answer is: " Multiple microservices can run in one process. " The statement that is FALSE about microservices is: " Multiple microservices can run in one process. " Microservices are designed to be independent and autonomous services that can be deployed, scaled, and managed separately. Each microservice typically runs as its own separate process. This separation allows for loose coupling and independent scalability of individual services. Running multiple microservices in a single process would violate the fundamental principle of microservices architecture, which emphasizes the isolation and independence of services. Combining multiple microservices into a single process would tightly couple them, making it difficult to independently manage, scale, and update each service. The other statements provided are true about microservices: It is fairly common for microservices to communicate with HTTP: Microservices often communicate with each other using lightweight protocols like HTTP/REST. This allows for interoperability, flexibility, and ease of communication between microservices. Microservices are typically designed around business capabilities: Microservices architecture advocates designing services based on specific business capabilities or functionalities. Each microservice focuses on a specific business domain or task, enabling modular and scalable development. They are independently deployable: Microservices are designed to be independently deployable units. This means that each microservice can be developed, tested, deployed, and updated separately without affecting other services. This flexibility allows for faster development cycles and more efficient scalability.


                                    NEW QUESTION # 81
                                    Your development team has deployed a fleet of web application servers across three fault domains in a specific compartment in OCI. To simplify operational dashboards, you must construct a single Monitoring Query Language (MQL) expression that calculates the average CPU utilization for each individual fault domain, rather than plotting each server individually. The expression must output exactly three lines, one for each fault domain, on the resulting Metrics Explorer chart.
                                    Which MQL expression correctly fulfills these requirements?

                                    Answer: D

                                    Explanation:
                                    Oracle Monitoring documents groupBy(x) specifically for aggregating metric streams according to a shared dimension. Oracle ' s own fault-domain example uses the exact expression CpuUtilization[1m].groupBy (faultDomain).mean(). The resulting chart contains one aggregated metric stream for each fault domain, which means a compartment containing three fault domains produces three lines rather than one line per Compute instance. grouping() combines all selected metric streams into a single aggregate instead of retaining separate fault-domain groups. filter(faultDomain) is not the appropriate MQL grouping operation, and split() is not the documented operator for this requirement. Because the scenario requires mean CPU utilization separately aggregated for each value of the faultDomain dimension, option B exactly matches Oracle ' s documented MQL pattern.


                                    NEW QUESTION # 82
                                    What is the difference between blue/green and canary deployment strategies? (Choose the best answer.)

                                    Answer: C

                                    Explanation:
                                    The correct answer is: In blue/green deployment, both old and new applications are in production at the same time. In canary deployment, the application is deployed incrementally to a select group of people. In a blue
                                    /green deployment strategy, two identical environments, referred to as blue and green, are set up. The current production environment (blue) continues to serve live traffic while a new version of the application is deployed in the green environment. Once the new version is tested and deemed stable, traffic is routed from the blue environment to the green environment, making it the new production environment. This approach allows for a seamless switch between the old and new versions of the application. On the other hand, in a canary deployment strategy, the new version of the application is deployed incrementally to a small subset of users or a specific group. This allows for testing the new version in a real production environment while minimizing the impact of any potential issues. If the new version performs well and meets the desired criteria, it can be gradually rolled out to a larger audience or the entire user base. In summary, the main difference between blue/green and canary deployment strategies lies in how the deployment is managed. Blue/green involves simultaneous production of both old and new applications, while canary deployment focuses on incremental deployment to a select group of users.


                                    NEW QUESTION # 83
                                    Which command is used to get a Docker image from Oracle Cloud Infrastructure Registry (OCIR) to the client machine?

                                    Answer: A

                                    Explanation:
                                    To pull a Docker image from OCI Registry to the client machine, you need to use the docker pull command with the following syntax1: docker pull < region-key > .ocir.io/ < tenancy-namespace > / < repo-name > : < tag > where:
                                    * < region-key > is the key for the OCI Registry region you're using. For example, iad. See Availability by Region1.
                                    * ocir.io is the OCI Registry name.
                                    * < tenancy-namespace > is the auto-generated Object Storage namespace string of the tenancy that owns the repository from which you want to pull the image (as shown on the Tenancy Information page)1.
                                    * < repo-name > is the name of the repository that contains the image you want to pull.
                                    * < tag > is the tag of the image you want to pull.


                                    NEW QUESTION # 84
                                    Which of these is NOT a valid authentication method for accessing an OCI API Gateway deployment?

                                    Answer: B

                                    Explanation:
                                    OCI API Gateway supports the following authentication methods for accessing an API deployment3:
                                    * HTTP Basic: The client sends a username and password with each request. The credentials are validated against a user database in Oracle Identity Cloud Service (IDCS).
                                    * API Key: The client sends an API key with each request. The API key is validated against a list of keys stored in IDCS or OCI Vault.
                                    * OAuth: The client obtains an access token from an authorization server (such as IDCS) and sends it with each request. The access token is validated against the authorization server and optionally checked for required scopes.
                                    * JWT Token: The client obtains a JSON Web Token (JWT) from an identity provider (such as IDCS or OCI IAM) and sends it with each request. The JWT is validated against the identity provider's public key and optionally checked for required claims. SAML Token is not a valid authentication method for accessing an OCI API Gateway deployment. SAML is an XML-based standard for exchanging authentication and authorization data between different parties, such as a service provider and an identity provider4. SAML tokens are typically used for web browser single sign-on (SSO) scenarios, not for API access4.


                                    NEW QUESTION # 85
                                    ......

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