Updated Nov-2025 1Z0-1109-25 Exam Practice Test Questions
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Oracle 1Z0-1109-25 Exam Syllabus Topics:
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NEW QUESTION # 13
Which of the following statement is INCORRECT with respect to a Dockerfile?
- A. If CMD instruction provides default arguments for the ENTRYPOINT instruction, both should be specified in JSON format.
- B. WORKDIR instruction sets the working directory for any RUN, CMD, ENTRYPOINT instructions and not for COPY and ADD instructions in the Dockerfile.
- C. 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.
- D. The RUN instruction will execute any commands in a new layer on top of the current image and commit the results.
Answer: B
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 # 14
Observability helps understand system behavior, but it has limitations.
Which of the following tasks cannot be accomplished solely through observability?
- A. Identifying infrastructure bottlenecks
- B. Automating software deployments
- C. Identifying resource consumption
- D. Optimizing resource utilization
Answer: B
Explanation:
Observability refers to the ability to understand a system's internal state by observing its outputs. It involves metrics, logs, and tracing to provide insights into the system's behavior, which helps in monitoring and identifying issues.
NEW QUESTION # 15
You are a DevOps project administrator. You are creating Oracle Cloud Infrastructure (OCI) Identity and Access Management (IAM) policies that will be used in a DevOps CI/CD pipeline for deployment to an Oracle Container Engine for Kubernetes (OKE) environment.
Which OCI IAM policy can be used?
- A. Allow group <build pipeline> to manage all-resources in compartment <compartment name>
- B. Allow group <deployment pipeline> to manage devops-family in compartment <compartment name>
- C. Allow dynamic-group <deployment pipeline> to manage all-resources in compartment <compartment name>
- D. Allow dynamic-group <code repository> to manage devops-family in compartment <compartment name>
Answer: B
Explanation:
Choosen policy specifies an IAM policy allowing the group (in this case, the deployment pipeline) to manage devops-family resources within a specific compartment. The devops-family is a group of services that includes the OCI DevOps service, which is suitable for managing CI/CD pipelines, deployments, and related operations for an OKE environment.
NEW QUESTION # 16
Which OCI DevOps project resource is responsible for defining the stages for compiling, testing, and running software applications before deployment?
- A. Integration pipelines
- B. Build pipelines
- C. Deployment pipelines
- D. Development pipelines
Answer: B
Explanation:
Build pipelines in OCI DevOps are responsible for defining the stages involved in compiling, testing, and running software applications. These pipelines automate the process of building the code, running unit tests, scanning for vulnerabilities, and packaging the software, all of which occur before deploying the application.
NEW QUESTION # 17
In Kubernetes clusters created by Container Engine for Kubernetes, how is data in etcd encrypted at rest by default?
- A. Encryption using TLS certificates
- B. Using encryption keys managed by Oracle using a master encryption key
- C. Using encryption keys managed by the user
- D. No encryption applied
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 # 18
As a cloud engineer, you are responsible for managing a Kubernetes cluster on the Oracle Cloud Infrastructure (OCI) platform for your organization. You are looking for ways to ensure reliable operations of Kubernetes at scale while minimizing the operational overhead of managing the worker node infrastructure.
Which cluster option is the best fit for your requirement?
- A. Using Kubernetes cluster add-ons to automate worker node management
- B. Using OCI OKE virtual nodes to eliminate worker node infrastructure management
- C. Using OCI OKE managed nodes with cluster autoscalers to eliminate worker node infrastructure management
- D. Creating and managing worker nodes using OCI compute instances
Answer: B
Explanation:
Step 1: Understanding the Requirement
The goal is to ensure reliable operations of Kubernetes at scale while minimizing the operational overhead of managing worker node infrastructure. In this context, a solution is needed that abstracts away the complexity of managing, scaling, and maintaining worker nodes.
Step 2: Explanation of the Options
A . Using OCI OKE managed nodes with cluster autoscalers
While this option provides managed node pools and uses cluster autoscalers to adjust resources based on demand, it still requires some level of management for the underlying worker nodes (e.g., patching, upgrading, monitoring).
Operational overhead: Moderate.
B . Using OCI OKE virtual nodes
Virtual nodes in OCI OKE are a serverless option for running Kubernetes pods. They remove the need to manage underlying worker nodes entirely.
OCI provisions resources dynamically, allowing scaling based purely on pod demand.
There's no need for node management, patching, or infrastructure planning, which perfectly aligns with the requirement to minimize operational overhead.
Operational overhead: Minimal.
Best Fit for This Scenario: Since the requirement emphasizes minimizing operational overhead, this is the ideal solution.
C . Using Kubernetes cluster add-ons to automate worker node management Kubernetes add-ons like Cluster Autoscaler or Node Problem Detector help in automating some aspects of worker node management. However, this still requires managing worker node infrastructure at the core level.
Operational overhead: Moderate to high.
D . Creating and managing worker nodes using OCI compute instances
This involves manually provisioning and managing compute instances for worker nodes, including scaling, patching, and troubleshooting.
Operational overhead: High.
Not Suitable for the Requirement: This option contradicts the goal of minimizing operational overhead.
Step 3: Why Virtual Nodes Are the Best Fit
Virtual Nodes in OCI OKE:
Virtual nodes provide serverless compute for Kubernetes pods, allowing users to run workloads without provisioning or managing worker node infrastructure.
Scaling: Pods are automatically scheduled, and the required infrastructure is dynamically provisioned behind the scenes.
Cost Efficiency: You only pay for the resources consumed by the running workloads.
Use Case Alignment: Eliminating the burden of worker node infrastructure management while ensuring Kubernetes reliability at scale.
Step 4: References and OCI Resources
OCI Documentation:
OCI Kubernetes Virtual Nodes
OCI Container Engine for Kubernetes Overview
Best Practices for Kubernetes on OCI:
Best Practices for OCI Kubernetes Clusters
NEW QUESTION # 19
You host your application on a stack in Oracle Cloud Infrastructure (OCI) Resource Manager. Because of recent growth in your user base, you decide to add a CIDR block to your VCN, add a subnet, and provision a compute instance in it.
Which statement is true?
- A. You can make the changes to the Terraform code, run an Apply job, and Resource Manager will provision the new resources.
- B. You can make the changes to the Terraform code, run a Drift Detection job, and Resource Manager will provision the new resources.
- C. You need to provision the new resources in the OCI console first, then add them later to the Terraform configuration and state.
- D. You need to provision a new stack because Terraform uses immutable infrastructure.
Answer: A
Explanation:
Oracle Cloud Infrastructure (OCI) Resource Manager uses Terraform to manage infrastructure resources. If you need to add new resources (e.g., a new CIDR block, subnet, and compute instance), you can simply make the necessary changes to the Terraform code defining the stack.
After modifying the Terraform configuration to include the new resources, you can run an Apply job in Resource Manager. The Apply job will provision the new resources in your OCI environment according to the updated Terraform code.
NEW QUESTION # 20
Which is NOT a valid log category for the Oracle Cloud Infrastructure Logging service?
- A. Service Logs
- B. Execution Logs
- C. Custom Logs
- D. Audit Logs
Answer: B
Explanation:
The Oracle Cloud Infrastructure Logging service has several log categories that users can utilize:
Custom Logs: Users can create their own logs to collect application-specific data.
Audit Logs: These logs contain audit records that provide information about activities performed on resources, generated by OCI Audit service.
Service Logs: These are logs generated by OCI services, providing information about the functioning and performance of the services.
Execution Logs is not a valid log category in OCI Logging. There are no "execution logs" as a defined category for the Logging service.
NEW QUESTION # 21
As a DevOps engineer working with OCI DevOps, you are managing artifacts for a microservices application.
Based on your understanding of working with DevOps projects and artifacts, which statement is true?
- A. In the build pipeline, to store the Managed Build stage outputArtifacts. you need an OCI Object storage.
- B. It is recommended to make artifacts immutable to prevent any modifications after they are uploaded.
- C. Artifacts can be used directly by OCI DevOps without the need for them to be located or mirrored in an OCI Artifact or Container registry.
- D. Once created, the artifact's name. type, and source cannot be modified.
Answer: B
Explanation:
Making artifacts immutable ensures that the build artifacts are not altered after being published. This is a best practice to maintain the integrity and consistency of the artifacts used in deployments, preventing unintentional changes that could introduce issues during subsequent deployment stages.
NEW QUESTION # 22
An operations team is exploring the use of OCI Container Instances to run their container workloads without managing servers.
Which of the following statements is false regarding the use of Container Instances?
- A. Container Instances provide a serverless compute service for running containers, eliminating the need for server management.
- B. Container Instances require the team to perform provisioning, patching, and ongoing management of servers.
- C. The underlying infrastructure for Container Instances is fully managed and hardened by OCI, ensuring reliability and security.
- D. Billing for Container Instances is based on the allocated CPU and memory resources for each container instance.
Answer: B
Explanation:
OCI Container Instances are a serverless compute service that allows you to run containerized workloads without managing the underlying infrastructure. Oracle Cloud Infrastructure (OCI) manages provisioning, patching, and all the ongoing server management tasks, providing a fully managed environment.
NEW QUESTION # 23
As a DevOps engineer at XYZ Corp, you are responsible for ensuring the smooth operation of high-traffic web applications hosted on Oracle Cloud Infrastructure (OCI). The web applications run on multiple OCI resources, including virtual machines, load balancers, and databases. Recently, users have reported failures while accessing one of the OCI-based web applications, and you suspect HTTP 5XX errors on the load balancer. You need to quickly identify and address this issue.
Which of the following statements can assist you in quickly identifying and monitoring the HTTP 5XX error rate on the load balancer and setting up notifications?
- A. Use Metrics and Alarms of the Monitoring service to monitor the HTTP 5XX error rate on the load balancer and set up notifications with OCI Notifications.
- B. Use Event Rules to detect HTTP 5XX errors on the load balancer and trigger automated actions using OCI Functions or API Gateway.
- C. Use Metrics and Alarms of the Monitoring service with Container Engine for Kubernetes (OKE) to monitor HTTP 5XX errors on Kubernetes resources and correlate them with other OCI resources.
- D. Use Custom Metrics of the Monitoring service to collect HTTP 5XX error rates from the load balancer and set up Service Connectors with third-party services such as PagerDuty or Slack.
Answer: C
Explanation:
The Monitoring service in OCI can be used to track metrics for various OCI resources, including load balancers. You can monitor specific metrics, such as HTTP 5XX error rates, to identify issues.
By using Alarms, you can set up thresholds for the HTTP 5XX error rate and receive notifications when the threshold is breached. The notifications can be configured through OCI Notifications, which allows integration with email, PagerDuty, Slack, and other channels.
NEW QUESTION # 24
A DevOps engineer is asked to access an Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE) cluster to deploy new applications and manage existing ones.
Which two statements are true? (Choose two.)
- A. Generating an API signing key pair is not required while setting up cluster access using local machine if the public key is not already uploaded in the console.
- B. The only available option when a cluster's Kubernetes API endpoint has a public IP address is to control the cluster locally using kubectl and the Kubernetes Dashboard.
- C. To access the cluster using kubectl, you have to set up a Kubernetes manifest file for the cluster. The kubeconfig file by default is named config and stored in the $HOME/.manifest directory.
- D. When a cluster's Kubernetes API endpoint has a public IP address, you can access the cluster in Cloud Shell by setting up a kubeconfig file.
- E. To access the cluster using kubectl, you have to set up a Kubernetes configuration file for the cluster. The kubeconfig file by default is named config and stored in the $HOME/.kube directory.
Answer: D,E
Explanation:
To access an OKE cluster using kubectl, you need to set up a Kubernetes configuration file (kubeconfig). By default, the kubeconfig file is named config and stored in the $HOME/.kube directory.
When a cluster's Kubernetes API endpoint has a public IP address, you can use Cloud Shell to access the cluster. Setting up a kubeconfig file is required to authenticate and manage the cluster.
NEW QUESTION # 25
As an engineer building and deploying applications using an OCI DevOps project, which two capabilities can help ensure the security and reliability of the code in the build and deployment pipelines? (Choose two.)
- A. Using JIRA to track user stories and bug fixes in the development process
- B. Using third-party tools like Sonatype, SonarQube, or OverOps to analyze code for security defects or bugs in code quality
- C. Using Application Dependency Management (ADM) to identify security weaknesses in software applications by checking their dependencies
- D. Using third-party tools like Ansible, Terraform, or OverOps to analyze code for security defects or bugs in code quality
- E. Using version control tools like Git or SVN to track and manage changes in the codebase
Answer: B,C
NEW QUESTION # 26
What is the correct approach to upgrade an Oracle Container Engine for Kubernetes (OKE) Cluster to a newer version of Kubernetes?
- A. Upgrade the control plane, then upgrade the node pools.
- B. Initiate the automated upgrade process using the OCI Console, CLI, or API.
- C. Initiate the control plane and node pool upgrades simultaneously.
- D. Upgrade the node pools one at a time, then once all node pools are upgraded, upgrade the control plane.
Answer: A
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 # 27
As a DevOps engineer working on a CI/CD pipeline for your company's application, you have completed code analysis, image scanning, and automated testing.
What is the next step to ensure a secure and reliable deployment?
- A. Add a traffic Shift stage to route the traffic between two sets ofbackend IPs.
- B. Add an approval stage to pause the deployment for a specified duration for manual decision from the approver.
- C. Add a shell stage to run custom commands in the deployment pipeline.
- D. Add an invoke function stage to run code or custom logic in a serverless manner.
Answer: B
Explanation:
After completing code analysis, image scanning, and automated testing, the next step in the CI/CD pipeline should include a manual review to ensure that all necessary security and quality checks have been performed correctly. Adding an approval stage helps ensure that a secure and reliable deployment is achieved by requiring human verification and approval before proceeding with the deployment to production.
This step adds an extra layer of control to prevent unintended issues from moving forward without further review. It is a common practice in CI/CD pipelines to have an approval step, especially for critical deployments.
NEW QUESTION # 28
As a DevOps Engineer, you are tasked with securely storing and versioning your application's source code and automatically build, test, and deploy your application to Oracle Cloud Infrastructure (OCI) platform.
You are told to automate manual tasks and help software teams in managing complex environments at scale.
Which three OCI services can you choose to accomplish these tasks? (Choose three.)
- A. DevOps project
- B. Oracle APEX Application Development
- C. Oracle Cloud Logging Analytics
- D. Container Engine for Kubernetes
- E. Oracle Cloud Infrastructure Registry
Answer: A,D,E
Explanation:
Oracle Cloud Infrastructure Registry: This service allows you to securely store container images. It is essential for managing the container images used for deployment, making it an important part of the DevOps workflow.
DevOps project: OCI DevOps project is specifically designed to manage the CI/CD pipeline. It helps in automating tasks like building, testing, and deploying applications, which are key activities for managing complex environments and promoting agility in software development.
Container Engine for Kubernetes: Oracle Container Engine for Kubernetes (OKE) is used to deploy applications in a containerized environment. It provides a robust platform for deploying, managing, and scaling containerized applications, which is essential for handling complex environments at scale.
NEW QUESTION # 29
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