2026 1z0-1084-26: Oracle Cloud Infrastructure Developer Professional Pass-Sure Certification Questions

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Oracle 1z0-1084-26 Exam Syllabus Topics:

SectionWeightObjectives
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
      - Container Orchestration
      • 1. Discuss the role of container orchestration
        - Oracle Kubernetes Engine
        • 1. Develop and deploy containerized applications on Oracle Kubernetes Engine
          Cloud Native Fundamentals11%- Cloud Native Principles
          • 1. Explain the fundamentals of cloud native and discuss the key pillars of cloud native development
            - Microservices Architecture
            • 1. Explain the microservices architecture and discuss the design methodology of microservices
              Monitoring & Troubleshooting Cloud Native Applications10%- OCI Monitoring
              • 1. Utilize OCI Monitoring Service to view metrics
                - OCI Logging
                • 1. Use OCI Logging Service to enable, manage, and search logs
                  - Monitoring, Logging, and Tracing
                  • 1. Perform tasks around monitoring, logging, and tracing
                    Leveraging Serverless Technologies for Cloud Native Development33%- OCI Queue
                    • 1. Facilitate asynchronous messaging for microservices with OCI Queue
                      - API Gateway
                      • 1. Create API gateways to process traffic from API clients and route it to back-end services
                        - OCI Streaming
                        • 1. Create integration between systems using OCI Streaming Service
                          - Oracle Functions
                          • 1. Develop serverless applications with Oracle Functions
                            - OCI Events
                            • 1. Build event-driven serverless applications using OCI Events Service
                              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

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                                    Oracle Cloud Infrastructure Developer Professional Sample Questions (Q37-Q42):

                                    NEW QUESTION # 37
                                    A DevOps engineer is troubleshooting the Meshifyd application, which is running in an Oracle Cloud Infrastructure (OCI) environment. The engineer has set up the OCI Logging service to store access logs for the application but notices that the logs from the Meshifyd application are not showing up in the logging service. The engineer suspects that there might be an issue with the logging configuration. Which two statements are potential reasons for logs from the Meshifyd application not showing up in the OCI Logging service?

                                    Answer: C,D

                                    Explanation:
                                    The logconfig.json file is a configuration file that specifies how the Unified Monitoring Agent collects and uploads custom logs to the OCI Logging service2. The logconfig.json file contains an array of objects, each representing a custom log configuration2. Each custom log configuration object has the following fields2:
                                    * logGroupObjectId: The OCID of the log group where the custom log is stored.
                                    * logObjectId: The OCID of the custom log.
                                    * paths: An array of paths to files or directories containing the custom logs.
                                    * src: A regular expression that matches the files containing the custom logs.
                                    * parser: A parser definition that specifies how to parse the custom logs. If the logconfig.json file has incorrect or missing OCID for the custom log in the logobjectId field, or incorrect or missing OCID for the custom log group in the logGroupObjectId field, then the Unified Monitoring Agent will not be able to upload the custom logs to the OCI Logging service2. Therefore, these are potential reasons for logs from the Meshifyd application not showing up in the OCI Logging service. Verified References: Unified Monitoring Agent Configuration File


                                    NEW QUESTION # 38
                                    You are deploying a set of Java microservices to an Oracle Cloud Infrastructure Container Engine for Kubernetes cluster. You must ensure that the application design strictly adheres to the Twelve-Factor App methodology for configuration management and backing services to simplify multi-environment deployments. Which TWO design strategies must you implement to satisfy these Twelve-Factor App principles?

                                    Answer: B,E

                                    Explanation:
                                    The Twelve-Factor methodology requires configuration to be separated from application code and backing services to be treated as attached resources. Oracle ' s Twelve-Factor guidance specifically recommends keeping configuration outside the Docker image and supplying deployment-specific values through the environment. This allows the same application artifact to move between development, test, and production without rebuilding it. Kubernetes ConfigMaps or environment variables implement this principle effectively.
                                    The backing-services factor similarly treats databases, queues, caches, and external services as replaceable resources referenced through configuration rather than hardcoded dependencies. Consequently, switching a database or message broker should require configuration changes rather than application-code changes.
                                    Hardcoding credentials or environment-specific values violates configuration separation, while sharing one database across environments is not required for dev/prod parity. Therefore, B and D are correct.
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                                    NEW QUESTION # 39
                                    Which option best defines microservices?

                                    Answer: A

                                    Explanation:
                                    The correct answer is: " A finely tuned piece of software that performs a single or small collection of tasks. " Microservices are a software architectural approach where a system is decomposed into small, independent services that are responsible for performing a specific set of tasks. Each microservice is designed to be focused, finely tuned, and highly cohesive, handling a single or a small collection of related tasks. This granularity allows for better scalability, maintainability, and flexibility in building complex applications. The other options provided do not accurately define microservices: An open-source system for automating deployment, scaling, and management of containerized applications refers to a container orchestration tool like Kubernetes, which can be used to manage microservices but is not a definition of microservices itself. A statically typed and compiled language describes a type of programming language characteristic and is not specific to the concept of microservices. An organized collection of structured information or data, typically stored electronically in a computer system is a definition of a database or data storage system and is unrelated to microservices.


                                    NEW QUESTION # 40
                                    You are deploying a serverless data integration pipeline where an OCI Function needs to consume real-time events from an OCI Stream in the prod-compartment compartment. Your corporate security policy mandates strict least-privilege access, meaning the function must only be permitted to consume (pull) messages, with absolutely no capability to publish (push) messages to the stream. Which TWO configurations are required to establish this granular authorization using a Dynamic Group named analytics-function-dg?

                                    Answer: D,E

                                    Explanation:
                                    Oracle Streaming exposes separate IAM resource types for producers and consumers. Granting use stream- pull provides STREAM_CONSUME, covering operations such as GetMessages, CreateCursor, group cursors, heartbeats, and commits without granting STREAM_PRODUCE. Granting use streams would be broader because that resource type includes both production and consumption capabilities. Oracle Functions can be placed in a dynamic group with a rule using resource.type = ' fnfunc ' together with the Function ' s compartment OCID. compute would not match an Oracle Function resource, and stream-push provides the opposite permission by allowing message publication. Therefore, A establishes consume-only Streaming permission while C correctly associates the Functions resources with the dynamic group.


                                    NEW QUESTION # 41
                                    Which token authentication policy configuration parameter should be defined when adjusting for potential clock synchronization differences between the external OAuth2 identity provider and the OCI API Gateway?

                                    Answer: A

                                    Explanation:
                                    maxClockSkewInSeconds specifies the maximum expected difference between the system clock of the token issuer and the OCI API Gateway. Oracle documents this value as part of token/JWT authentication policy configuration. The gateway accounts for the configured skew when evaluating time-dependent JWT claims such as nbf (not before) and exp (expiration), preventing otherwise valid tokens from being rejected because of minor clock differences between systems. Oracle currently documents a valid range from 0 through 120 seconds for the JWT policy. maxCacheDurationInHours controls caching behavior rather than clock synchronization, while SSL verification relates to certificate validation. allowedClockVariance is not the documented OCI API Gateway property. Therefore, B is the correct configuration parameter.


                                    NEW QUESTION # 42
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