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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. Perform monitoring, logging, and tracing tasks 2. Troubleshoot cloud native applications - 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%	- Oracle Cloud Infrastructure Registry 1. Push container images to OCIR 2. Pull container images from OCIR - Container Orchestration 1. Role of container orchestration 2. Deploy containerized applications on Oracle Kubernetes Engine - Docker and Containerization 1. Docker architecture and components 2. Containerization concepts
Topic 3: Testing and Securing Cloud Native Applications	13%	- Cloud Native Security 1. Apply security measures for cloud native development 2. Use OCI Vault to securely manage encryption keys 3. Manage sensitive configuration information - Cloud Native Testing 1. Cloud native testing methodologies 2. Testing strategies for cloud native applications
Topic 4: Cloud Native Fundamentals	11%	- Cloud Native Principles 1. Key pillars of cloud native development 2. Fundamentals of cloud native development - Microservices Architecture 1. Microservices design methodology 2. Microservices architecture
Topic 5: Leveraging Serverless Technologies for Cloud Native Development	33%	- OCI Queue 1. Implement asynchronous messaging for microservices - Oracle Functions 1. Develop serverless applications with Oracle Functions - OCI Streaming 1. Use streaming for serverless and managed application architectures 2. Integrate systems using OCI Streaming - OCI Events 1. Build event-driven serverless applications - 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 (Q127-Q132):

NEW QUESTION # 127
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 > / < domain-name > / < username >
B. < tenancy-namespace > / < username >
C. < username > @ < tenancy-namespace > / < domain-name >
D. < domain-name > / < username > @ < tenancy-namespace >

Answer: A

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 # 128
Which cursor type allows a consumer to start reading messages from the oldest available record still within a stream ' s retention period?

A. LATEST
B. AT_TIME
C. AFTER_OFFSET
D. TRIM_HORIZON

Answer: D

Explanation:
Oracle Streaming defines TRIM_HORIZON as the cursor type that starts consumption from theoldest available message in the stream. Because Streaming retains messages only for the configured retention period,
"oldest available" means the earliest record that has not yet aged out of retention. Oracle specifically recommends creating a cursor at TRIM_HORIZON when a consumer needs to process all currently retained messages. LATEST starts with messages published after the cursor is created. AT_TIME begins at or after a specified timestamp, while AFTER_OFFSET begins after an explicitly supplied partition offset.
Consequently, none of those alternatives guarantees starting from the earliest retained record.
TRIM_HORIZON is therefore the correct cursor for replaying the complete message history that remains available in the stream.

NEW QUESTION # 129
Which THREE are valid statements regarding the OCI Container Engine for Kubernetes (OKE) service?
(Choose three.)

A. There is a limit of three clusters within each region, but there is no limit on the number of nodes and pods you can create within each cluster.
B. You must have access to an Oracle Cloud Infrastructure tenancy. Your tenancy must have sufficient quota on different types of resources.
C. OKE automatically creates and configures new network resources for the new cluster.
D. OKE cannot use existing network resources for the creation of a new cluster.

Answer: A,B,C

Explanation:
The valid statements regarding the OCI Container Engine for Kubernetes (OKE) service are: OKE automatically creates and configures new network resources for the new cluster. When creating a new OKE cluster, the service automatically provisions and configures the necessary network resources, such as VCNs, subnets, route tables, security lists, and load balancers, to support the cluster. Your tenancy must have sufficient quota on different types of resources. Before creating an OKE cluster, you need to ensure that your Oracle Cloud Infrastructure (OCI) tenancy has sufficient quota for the required resources, such as compute instances, block storage, networking resources, and load balancers. You must have access to an Oracle Cloud Infrastructure tenancy. To use the OKE service, you need to have access to an OCI tenancy. This means you must have a valid OCI account and the necessary permissions to create and manage resources within the tenancy. The following statements are not valid: OKE cannot use existing network resources for the creation of a new cluster. OKE creates new network resources specifically for the cluster, and it does not support using existing network resources. There is a limit of three clusters within each region, but there is no limit on the number of nodes and pods you can create within each cluster. This statement is incorrect. There is no specific limit on the number of clusters you can create within a region in OKE. However, there may be certain limits or quotas on resources that can impact the number of clusters you can create.

NEW QUESTION # 130
You are developing a Python microservice that needs to consume real-time telemetry data from a specific OCI Stream partition, beginning only with new messages that are published after your consumer client connects.
Which cursor type must you specify when invoking the create_cursor API call?

A. LATEST
B. AT_TIME
C. AFTER_OFFSET
D. TRIM_HORIZON

Answer: A

Explanation:
The LATEST cursor type positions the consumer at the most recent point in the stream so that it receives only messages published after the cursor is created. Oracle explicitly states that a cursor based on the most recent message allows consumption only of messages subsequently added to the stream. TRIM_HORIZON has the opposite behavior: it begins with the oldest message still available inside the stream ' s retention period.
AFTER_OFFSET begins immediately after a supplied partition offset, while AT_TIME begins from a specified timestamp. Because the requirement is to ignore all historical telemetry already retained in the partition and consume only newly arriving records, LATEST is the correct cursor type for the CreateCursor operation.

NEW QUESTION # 131
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. Add a generic secret on the cluster containing your identity credentials. Then specify a registryCredentials property in the deployment manifest.
B. Create a docker-registry secret for OCIR with identity Auth Token on the cluster, and specify the imagePullSecret property in the application deployment manifest.
C. Create a dynamic group for nodes in the cluster, and a policy that allows the dynamic group to read repositories in the same compartment.
D. Create a docker-registry secret for OCIR with API key credentials on the cluster, and specify the imagePullSecret property in the application deployment manifest.

Answer: B

NEW QUESTION # 132
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