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Oracle 1z0-1084-26 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Monitoring and Troubleshooting Cloud Native Applications	10%	- Monitoring, Logging, and Tracing 1. Troubleshoot cloud native applications 2. Perform monitoring, logging, and tracing tasks - OCI Monitoring 1. Use OCI Monitoring to view metrics - OCI Logging 1. Enable and manage logs 2. Search and analyze logs
Topic 2: Cloud Native Applications and Containerization	33%	- Container Orchestration 1. Deploy containerized applications on Oracle Kubernetes Engine 2. Role of container orchestration - Oracle Cloud Infrastructure Registry 1. Pull container images from OCIR 2. Push container images to OCIR - Docker and Containerization 1. Docker architecture and components 2. Containerization concepts
Topic 3: Cloud Native Fundamentals	11%	- Cloud Native Principles 1. Key pillars of cloud native development 2. Fundamentals of cloud native development - Microservices Architecture 1. Microservices architecture 2. Microservices design methodology
Topic 4: Leveraging Serverless Technologies for Cloud Native Development	33%	- OCI Events 1. Build event-driven serverless applications - OCI Streaming 1. Use streaming for serverless and managed application architectures 2. Integrate systems using OCI Streaming - Oracle Functions 1. Develop serverless applications with Oracle Functions - OCI Queue 1. Implement asynchronous messaging for microservices - API Gateway 1. Process traffic from API clients 2. Route API traffic to backend services
Topic 5: Testing and Securing Cloud Native Applications	13%	- Cloud Native Security 1. Apply security measures for cloud native development 2. Manage sensitive configuration information 3. Use OCI Vault to securely manage encryption keys - Cloud Native Testing 1. Testing strategies for cloud native applications 2. Cloud native testing methodologies

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Oracle Cloud Infrastructure Developer Professional Sample Questions (Q29-Q34):

NEW QUESTION # 29
Which of these is a valid use case for OCI Queue?

A. Building decoupled and scalable systems
B. Sending real-time streaming data
C. Storing and retrieving large files
D. Managing network traffic between services

Answer: A

Explanation:
OCI Queue is a fully managed serverless service that helps decouple systems and enable asynchronous operations2. Queue handles high-volume transactional data that requires independently processed messages without loss or duplication2. A valid use case for OCI Queue is building decoupled and scalable systems, such as event-driven architectures or microservices-based applications2. For example, you can use Queue to decouple your application and build an event-driven architecture. Decoupling ensures that individual application components can scale independently and that you can future-proof your design so that as new application components are built, they can publish or subscribe to the queue2.

NEW QUESTION # 30
What is the correct username format required for the docker login command when authenticating to Container Registry for an IAM user belonging to a non-default identity domain?

A. < tenancy-namespace > / < username >
B. < tenancy-namespace > / < domain-name > / < username >
C. < domain-name > / < username > @ < tenancy-namespace >
D. < username > @ < tenancy-namespace > / < domain-name >

Answer: B

Explanation:
Oracle Container Registry authentication requires the tenancy namespace to precede the identity information supplied to Docker. Oracle documents the standard username format as < tenancy-namespace > / < username
> . When an identity domain or federated domain must be identified explicitly, the domain name is inserted between the tenancy namespace and the username, resulting in < tenancy-namespace > / < domain-name > / < username > . The corresponding OCI Auth Token is supplied as the Docker password. Options C and D incorrectly rearrange the tenancy namespace and domain components, while option A omits the required domain qualification for the scenario described. Therefore, option B correctly represents the qualified Docker login username format used when the user ' s identity must be associated with a non-default domain.

NEW QUESTION # 31
Which kubectl command syntax is valid for implementing a rolling update deployment strategy in Kubernetes? (Choose the best answer.)

A. kubectl rolling-update < deployment-name > --image=image:v2
B. kubectl update -c < container > --iniage=image: v2
C. kubectl upgrade -c < container > --image=image:v2
D. kubectl update < deployment-name > --image=image:v2

Answer: A

Explanation:
The correct syntax for implementing a rolling update deployment strategy in Kubernetes using the kubectl command is: kubectl rolling-update < deployment-name > --image=image:v2 This command initiates a rolling update of the specified deployment by updating the container image to image:v2. The rolling update strategy ensures that the new version of the application is gradually deployed while maintaining availability and minimizing downtime.

NEW QUESTION # 32
Who is responsible for patching, upgrading, and maintaining the worker nodes in Oracle Cloud Infrastructure (OCI) Container Engine for Kubernetes (OKE)? (Choose the best answer.)

A. Independent Software Vendors
B. It is automated
C. Oracle Support
D. The user

Answer: D

Explanation:
The user is responsible for patching, upgrading, and maintaining the worker nodes in Oracle Cloud Infrastructure (OCI) Container Engine for Kubernetes (OKE). In OKE, the user has control over the worker nodes, which are the compute instances that run the Kubernetes worker components. As the user, you are responsible for managing and maintaining these worker nodes, including tasks such as patching the underlying operating system, upgrading Kubernetes versions, and performing any necessary maintenance activities. While Oracle provides the underlying infrastructure and support services, including managing the control plane and ensuring the availability of the OKE service, the responsibility for managing the worker nodes lies with the user. This allows you to have control and flexibility in managing your Kubernetes environment according to your specific needs and requirements.

NEW QUESTION # 33
A developer using Oracle Cloud Infrastructure (OCI) API Gateway needs to authenticate the API requests to their web application. The authentication process must be implemented using a custom scheme which accepts string-based parameters from the API caller. Which approach should the developer use in this scenario?

A. Create a cross account functions authorizer.
B. Create an authorizer function using token-based authorization.
C. Create an authorizer function using request header authorization.
D. Create an authorizer function using OCI Identity and Access Management 91AM) based authentication.

Answer: B

Explanation:
In the given scenario, the developer should use the approach of creating an authorizer function using token- based authorization. Token-based authorization is a commonly used approach for authenticating API requests.
It involves generating and issuing tokens to API callers, which they can then include in the requests they make to the API. The tokens serve as proof of authentication and are validated by the server to ensure the caller ' s identity and access rights. By creating an authorizer function using token-based authorization, the developer can implement a custom scheme that accepts string-based parameters from the API caller. This allows the developer to define their own authentication logic and validate the provided tokens according to their requirements. The authorizer function can be configured in the OCI API Gateway to be invoked before forwarding the request to the web application. It will perform the necessary token validation and authentication checks, allowing only authorized requests to access the protected resources of the web application.

NEW QUESTION # 34
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