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Free PDF Quiz 2025 Perfect Oracle 1Z0-1109-25: Reliable Oracle Cloud Infrastructure 2025 DevOps Professional Test Dumps

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Oracle 1Z0-1109-25 Exam Syllabus Topics:

Topic
Details

Topic 1

Understand DevOps Principles and Effectively Work with Containerization Services: This section of the exam measures the skills of DevOps Engineers and Cloud Architects in applying DevOps methodologies and containerization practices. It covers implementing a microservices architecture, creating Docker containers, and managing Oracle Cloud Infrastructure Registry (OCIR) and Container Instances to streamline application deployment and scalability.

Topic 2

Managing Containers Using Container Orchestration Engine: This part assesses the abilities of Kubernetes Administrators and Containerization Specialists in managing Oracle Container Engine for Kubernetes (OKE). It covers cluster creation, scaling, upgrades, networking, storage, and security configurations to optimize containerized applications in OCI environments.

Topic 3

Configuring and Managing Continuous Integration and Continuous Delivery (CI
CD): This section tests the knowledge of CI
CD Engineers and Automation Specialists in automating the software lifecycle using OCI DevOps Service. It includes managing source code repositories, configuring build
deployment pipelines, and creating artifacts for automated deployments across environments.

Oracle Cloud Infrastructure 2025 DevOps Professional Sample Questions (Q14-Q19):

NEW QUESTION # 14
Which of the following statement is INCORRECT with respect to a Dockerfile?

A. An ENV instruction sets the environment value to the key, and it is available for the subsequent build steps and in the running container as well.
B. If CMD instruction provides default arguments for the ENTRYPOINT instruction, both should be specified in JSON format.
C. The RUN instruction will execute any commands in a new layer on top of the current image and commit the results.
D. WORKDIR instruction sets the working directory for any RUN, CMD, ENTRYPOINT instructions and not for COPY and ADD instructions in the Dockerfile.

Answer: D

Explanation:
The WORKDIR instruction sets the working directory for all subsequent RUN, CMD, ENTRYPOINT, COPY, and ADD instructions in the Dockerfile. This means that after specifying WORKDIR, all these instructions will use the specified directory as their current working directory.

NEW QUESTION # 15
As a DevOps engineer working on containerizing a microservices-based application to be hosted on OCI Cloud platforms, which step can help ensure that the container images have not been modified after being pushed to Oracle Cloud Infrastructure Registry (OCIR)?

A. Deploying a manifest to the Kubernetes cluster that references the container image and its unique hash
B. Signing the image using the Container Registry CLI and creating an image signature that associates the image with the master encryption key and key version in the Vault service
C. Scanning the image upon ingestion and comparing the image size for changes
D. Enabling scanning of container images stored in OCI Registry

Answer: B

Explanation:
To ensure that container images have not been modified after being pushed to the Oracle Cloud Infrastructure Registry (OCIR), you should sign the image. This involves using the Container Registry CLI to create a digital signature for the image, which associates the image with a master encryption key and key version stored in the OCI Vault service. This signature can then be verified at the time of deployment, ensuring that the image has not been tampered with since it was signed.

NEW QUESTION # 16
What is the correct approach to upgrade an Oracle Container Engine for Kubernetes (OKE) Cluster to a newer version of Kubernetes?

A. Upgrade the node pools one at a time, then once all node pools are upgraded, upgrade the control plane.
B. Upgrade the control plane, then upgrade the node pools.
C. Initiate the control plane and node pool upgrades simultaneously.
D. Initiate the automated upgrade process using the OCI Console, CLI, or API.

Answer: B

Explanation:
The correct approach to upgrade an Oracle Container Engine for Kubernetes (OKE) cluster involves first upgrading the Kubernetes control plane, followed by upgrading the node pools. The control plane must be upgraded first to ensure compatibility with newer versions of Kubernetes, as node pools rely on the control plane for orchestration and management.
After upgrading the control plane, each node pool is upgraded to match the new Kubernetes version. This phased approach ensures the cluster remains in a stable state during the upgrade.

NEW QUESTION # 17
How does the Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE) Cluster Autoscaler determine when to create new nodes for an OKE cluster?

A. When the rate of requests to the application crosses a configured threshold.
B. When the custom metrics from the services exceed a configured threshold.
C. When the resource requests from pods exceed a configured threshold.
D. When the CPU or memory utilization crosses a configured threshold.

Answer: C

Explanation:
The OKE Cluster Autoscaler automatically adjusts the number of worker nodes in an OKE cluster based on the resource requests made by Kubernetes pods. When there are not enough resources available (e.g., CPU or memory) on existing nodes to accommodate pending pods, the Cluster Autoscaler will create new nodes to meet the resource demand.

NEW QUESTION # 18
In Kubernetes clusters created by Container Engine for Kubernetes, how is data in etcd encrypted at rest by default?

A. Using encryption keys managed by the user
B. Using encryption keys managed by Oracle using a master encryption key
C. No encryption applied
D. Encryption using TLS certificates

Answer: B

Explanation:
In Kubernetes clusters created by Oracle Container Engine for Kubernetes (OKE), data in etcd (the key-value store that holds cluster state and configuration data) is encrypted at rest by default using encryption keys managed by Oracle. Oracle manages the encryption using a master encryption key to protect sensitive data.

NEW QUESTION # 19
......

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