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Oracle 1z0-1084-26 Exam Syllabus Topics:

Section	Weight	Objectives
Leveraging Serverless Technologies for Cloud Native Development	33%	- 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 - OCI Queue 1. Facilitate asynchronous messaging for microservices with OCI Queue
Testing and Securing Cloud Native Applications	13%	- 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 - Cloud Native Testing 1. Analyze and evaluate cloud native testing methodologies and develop effective strategies for testing cloud native applications
Monitoring & Troubleshooting Cloud Native Applications	10%	- 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
Cloud Native Fundamentals	11%	- 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
Cloud Native Applications and Containerization	33%	- 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 - OCI Registry 1. Use OCI Registry to pull and push container images

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Oracle Cloud Infrastructure Developer Professional Sample Questions (Q136-Q141):

NEW QUESTION # 136
Which of the following is NOT a criterion that is usually met by a microservice?

A. Tightly coupled
B. Organized around business capabilities.
C. Independently deployable
D. Highly maintainable

Answer: A

Explanation:
The correct answer is: " Tightly coupled. " Tightly coupling is not a criterion that is usually met by a microservice. In fact, microservices are designed to be loosely coupled. Loosely coupling refers to reducing dependencies and minimizing the direct interactions between different components or services. Microservices promote independence and autonomy, allowing each service to operate independently without being tightly bound to other services. The other options listed are criteria that are typically met by microservices:
Organized around business capabilities: Microservices architecture suggests designing services around specific business capabilities or functionalities. This allows for focused and specialized services that align with the organization ' s business needs. Independently deployable: Microservices are designed to be independently deployable units. Each microservice can be developed, tested, and deployed separately, without impacting other services. This enables agility and scalability in the deployment process. Highly maintainable:
Microservices are often designed to be highly maintainable. They are smaller in scope and focused on specific tasks, making it easier to manage and maintain individual services. Additionally, microservices can be updated, patched, or replaced without affecting the entire system, facilitating easier maintenance and evolution of the application. Therefore, the criterion that is NOT typically met by a microservice is being tightly coupled.

NEW QUESTION # 137
You have created a repository in Oracle Cloud Infrastructure Registry (OCIR) in the us-ashburn-1 (iad) region in your tenancy with the heyoci namespace. Which three are valid tags for an image named myapp? (Choose three.)

A. us-ashburn-1.ocir.io/myproject/heyoci/myapp:latest
B. iad.ocir.io/heyoci/myapp:0.0.2-beta
C. us-ashburn-1.ocir.io/heyoci/myproject/myapp:0.0.2-beta
D. iad.ccir.io/heyoci/myapp:latest
E. iad.ocir.io/heyoci/myproject/myapp:0.0.1
F. us-ashburn-1.ocir.io/heyoci/myapp:0.0.2-beta

Answer: C,D,E

Explanation:
(OPT) iad.ocir.io/myproject/heyoci/myapp:latest The three valid tags for an image named myapp in the heyoci namespace of the Oracle Cloud Infrastructure Registry (OCIR) in the us-ashburn-1 (iad) region are:
iad.ccir.io/heyoci/myapp:latest This tag specifies the latest version of the myapp image in the heyoci namespace in the iad region. iad.ocir.io/heyoci/myapp:0.0.2-beta This tag specifies version 0.0.2-beta of the myapp image in the heyoci namespace in the iad region. us-ashburn-1.ocir.io/heyoci/myapp:0.0.2-beta This tag specifies version 0.0.2-beta of the myapp image in the heyoci namespace in the us-ashburn-1 region. The other options mentioned are not valid tags for the given scenario: us-ashburn-1.ocir.io/heyoci/myapp:0.0.2- beta (incorrect format, missing the namespace) iad.ocir.io/myproject/heyoci/myapp:latest (incorrect format, incorrect order of namespace and project) us-ashburn-1.ocir.io/myproject/heyoci/myapp:latest (incorrect format, incorrect order of namespace and project) The correct format for tagging an image in OCIR is < region > .ocir.io/ < namespace > / < repository > : < tag > .

NEW QUESTION # 138
Which statement is NOT valid regarding the design best practices for microservices?

A. Flexible communication requires all microservices to use the same synchronous protocol for both external and internal communication.
B. Backward compatibility dictates that API updates and parameter changes must not break existing clients consuming the microservice.
C. Idempotency ensures that calling a microservice multiple times with the same parameters produces the exact same outcome.
D. Responsive microservices must return a standard response to requesting clients even when the underlying service execution fails.

Answer: A

Explanation:
Oracle ' s microservices design guidance explicitly identifies responsive behavior, backward compatibility, flexible communication, and idempotency as important requirements. Flexible communication doesnotrequire every microservice to use one synchronous protocol. Oracle states that each microservice can specify the protocol used between clients and the API gateway as well as the protocol used between individual microservices. This flexibility supports loose coupling and allows synchronous or asynchronous communication where appropriate. Oracle also states that microservices should return a response even when the service fails, API changes should remain backward-compatible with existing clients, and repeated calls should produce the same outcome when idempotency is required. Consequently, option C directly contradicts Oracle ' s documented flexible-communication principle and is the NOT valid statement.

NEW QUESTION # 139
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?

A. Create a docker-registry secret for OCIR with API key credentials on the cluster, and specify the imagePullSecret property in the application deployment manifest.
B. Add a generic secret on the cluster containing your identity credentials. Then specify a registryCredentials property in the deployment manifest.
C. Create a docker-registry secret for OCIR with identity Auth Token on the cluster, and specify the imagePullSecret property in the application deployment manifest.
D. Create a dynamic group for nodes in the cluster, and a policy that allows the dynamic group to read repositories in the same compartment.

Answer: C

NEW QUESTION # 140
Which statement is NOT valid regarding the filter matching behavior of Oracle Cloud Infrastructure (OCI) Events rules?

A. Asterisk wildcards can be placed at the start, middle, or end of both attribute keys and attribute values.
B. Rules apply to events in the compartment in which they are created and any child compartments.
C. For a filter to match an event, the event must contain all the field names listed in the filter with the same nesting structure.
D. A filter matches all event messages in a compartment when configured with only empty curly brackets.

Answer: A

Explanation:
Oracle ' s Events documentation explicitly states that wildcard matching with * is supported only inattribute values, not in attribute keys. The asterisk can appear at the beginning, middle, or end of a value, but field names themselves must remain literal. Oracle also confirms all three other behaviors. An empty {} condition matches every applicable event; Events rules apply to their compartment and child compartments; and an event must contain every field named in the condition using the same nesting structure. Therefore, option C improperly extends wildcard functionality to attribute keys. The valid model is to preserve the exact JSON field structure while applying wildcard patterns only to values associated with those fields.

NEW QUESTION # 141
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