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Oracle 1z0-1109-24 Exam Syllabus Topics:
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NEW QUESTION # 23
Which OCI DevOps project resource is responsible for defining the stages for compiling, testing, and running software applications before deployment?
- A. Deployment pipelines
- B. Development pipelines
- C. Build pipelines
- D. Integration pipelines
Answer: C
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 # 24
Your team is working on a project to deploy a microservices-based application on a cloud platform using Terraform. Each microservice has specific configurations and dependencies, and you want to ensure modularity, reusability, and consistency across deployments.
Which Terraform feature would you use to achieve these objectives efficiently?
- A. Terraform Variables
- B. Terraform Providers
- C. Terraform Workspaces
- D. Terraform Modules
Answer: D
Explanation:
Terraform Modules are used to organize and group related configuration resources into reusable components. By using modules, you can achieve modularity, reusability, and consistency across different deployments, making it easier to manage complex infrastructure setups.
For a microservices-based application, where each microservice has specific configurations and dependencies, modules allow you to define the infrastructure for each microservice in a modular way. This helps to maintain clean, reusable code and ensures consistency across deployments.
NEW QUESTION # 25
Observability helps understand system behavior, but it has limitations.
Which of the following tasks cannot be accomplished solely through observability?
- A. Identifying resource consumption
- B. Automating software deployments
- C. Identifying infrastructure bottlenecks
- 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 # 26
Which is NOT a valid log category for the Oracle Cloud Infrastructure Logging service?
- A. Custom Logs
- B. Execution Logs
- C. Service 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 # 27
A small company is moving to a DevOps framework to better accommodate their intermittent workloads, which are dynamic and irregular. They want to adopt a consumption-based pricing model.
Which Oracle Cloud Infrastructure service can be used as a target deployment environment?
- A. Functions
- B. Oracle Kubernetes (OKE)
- C. Bare metal compute instance
- D. Virtual machine compute instance
Answer: A
Explanation:
Oracle Cloud Infrastructure Functions is a serverless compute service that supports a consumption-based pricing model. This means that you are only charged for the compute resources when your function is invoked. This is ideal for intermittent, dynamic, and irregular workloads since the company does not need to provision infrastructure in advance, and costs are directly tied to usage.
NEW QUESTION # 28
You're using Oracle Cloud Infrastructure (OCI) DevOps to deploy your application on an Oracle Container Engine for Kubernetes (OKE) environment. You push your code to the OCI Code Repository, add all the required stage and configure the build and deployment pipeline. When you run the build, you see "unable to clone the repository" error.
What could the configuration error be?
- A. The Docker image used in the pipeline is incompatible with the OKE environment.
- B. Dynamic Groups and OCI IAM policies to access the code repository are missing.
- C. CA bundle for Transport Layer Security (TLS) verification to download the build source during the build run is missing.
- D. The OKE cluster is not configured to allow external access to the code repository.
Answer: B
Explanation:
The error "unable to clone the repository" typically indicates that there is an authentication or authorization issue preventing access to the OCI Code Repository. In OCI DevOps, the build pipeline must have the appropriate permissions to access the code repository.
To allow the build pipeline to clone the repository, you need to set up Dynamic Groups and OCI IAM policies that provide the necessary permissions for the build runner to access the code repository.
NEW QUESTION # 29
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 Application Dependency Management (ADM) to identify security weaknesses in software applications by checking their dependencies
- B. Using third-party tools like Sonatype, SonarQube, or OverOps to analyze code for security defects or bugs in code quality
- C. Using third-party tools like Ansible, Terraform, or OverOps to analyze code for security defects or bugs in code quality
- D. Using JIRA to track user stories and bug fixes in the development process
- E. Using version control tools like Git or SVN to track and manage changes in the codebase
Answer: A,B
Explanation:
Application Dependency Management (ADM) is a tool used to identify security weaknesses in software applications by analyzing their dependencies. Dependencies can often introduce vulnerabilities, and managing them properly is a critical part of ensuring application security.
Third-party tools like Sonatype and SonarQube can be used to analyze code for security defects or bugs in code quality. These tools help in identifying vulnerabilities, code smells, and other issues, which can improve the overall security and reliability of the code during the build process.
NEW QUESTION # 30
How can system administrators ensure that only signed images from Oracle Cloud Infrastructure Registry are deployed to a Container Engine for Kubernetes cluster?
- A. By encrypting the images using a custom encryption algorithm
- B. By configuring an image verification policy for the cluster
- C. By manually inspecting each image before deployment
- D. By disabling access to the Container Engine for Kubernetes cluster
Answer: B
Explanation:
Image verification policies are used to ensure that only trusted and signed images are deployed to an Oracle Kubernetes Engine (OKE) cluster. By configuring such policies, administrators can enforce that images must be signed and come from trusted sources, such as the Oracle Cloud Infrastructure Registry.
NEW QUESTION # 31
Which command creates the docker registry secret required in the application manifests for OKE to pull images from Oracle Cloud Infrastructure Registry?
- A.
- B.
- C.
- D.
Answer: C
Explanation:
To create a Docker registry secret to pull images from the Oracle Cloud Infrastructure Registry (OCIR), you need to specify the correct parameters such as the region key, namespace, OCI username, and OCI authentication token.
Chosen command is correct because:
The kubectl create secret docker-registry command creates a Docker registry secret.
The --docker-server=<region-key>.ocir.io specifies the correct endpoint for OCIR.
The --docker-username=<tenancy-namespace>/<oci-username> provides both the tenancy namespace and the OCI username, which is the required format for authentication with OCIR.
The --docker-password='<oci-auth-token>' specifies the OCI auth token, which acts as a password for authentication.
The --docker-email=<email-address> is also included.
The other commands have errors, such as missing tenancy namespace or using incorrect flags (passwd instead of secret).
NEW QUESTION # 32
What are the two items required to create a rule for the Oracle Cloud Infrastructure Events Service? (Choose two.)
- A. Rule Conditions
- B. Actions
- C. Management Agent Cloud Service
- D. Auth Token
- E. Service Connector
Answer: A,B
Explanation:
Oracle Cloud Infrastructure (OCI) Events Service allows you to create rules to automatically respond to changes in your OCI environment. To create a rule, you need the following items:
Rule Conditions: Conditions define the events that will trigger the rule. This specifies what event (e.g., instance creation, object storage bucket modification) will trigger an action.
Actions: Actions define what should happen when a condition is met. For example, the action might be to trigger an OCI Function or send a notification.
NEW QUESTION # 33
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 control plane and node pool upgrades simultaneously.
- C. Initiate the automated upgrade process using the OCI Console, CLI, or API.
- 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 # 34
Which of the following statement is INCORRECT with respect to a Dockerfile?
- A. WORKDIR instruction sets the working directory for any RUN, CMD, ENTRYPOINT instructions and not for COPY and ADD instructions in the Dockerfile.
- 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. 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.
Answer: A
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 # 35
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. Encryption using TLS certificates
- C. No encryption applied
- D. Using encryption keys managed by Oracle using a master encryption key
Answer: D
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 # 36
As a DevOps Engineer, you are tasked with explaining the key concepts of Terraform to a new team member. You want to ensure they understand the fundamental concepts of Terraform.
Which of the following best describes the purpose of Terraform variables?
- A. Terraform variables are used to define input values for Terraform configurations, allowing for customization and reuse of infrastructure code.
- B. Terraform variables are used to manage the life cycle of Terraform resources.
- C. Terraform variables are used to define the structure and organization of Terraform configuration files.
- D. Terraform variables are used to output the final state of the infrastructure after deployment.
Answer: A
Explanation:
Terraform variables are used to define input values for Terraform configurations. They allow users to customize infrastructure deployments by providing different values without modifying the configuration files themselves. Variables help in creating reusable infrastructure code, making it easy to maintain and adjust the infrastructure setup according to different environments or needs.
NEW QUESTION # 37
A fully qualified path to a particular image in an OCIR repository is given as iad.ocir.io/ansh81vru1zp/project01/acme-web-app:version2.0.test.
Identify the two options with correct terms and their associated values. (Choose two.)
- A. ansh81vru1zp represents <tenancy-namespace>
- B. iad represents <region-key>
- C. ansh81vru1zp/project01/acme-web-app:version2.0.test represents <repo-name>
- D. iad.ocir.io/ansh81vru1zp represents <region-key>
- E. version2.0.test represents <tenancy-namespace>
Answer: A,B
Explanation:
ansh81vru1zp is the <tenancy-namespace>. In Oracle Cloud Infrastructure Registry (OCIR), the tenancy namespace uniquely identifies the tenancy and is used as part of the image path.
iad is the <region-key>. The region key is the shorthand identifier for the OCI region (iad represents Ashburn region), and it is used in the fully qualified path for images stored in the Oracle Cloud Infrastructure Registry (OCIR).
NEW QUESTION # 38
You are a DevOps engineer working on a project that requires you to push and pull Docker images to and from Oracle Cloud Infrastructure Registry (Container Registry) using Docker CLI. You have been given access to Container Registry and have installed Docker CLI on your local machine.
Which should you create and use to securely authenticate and store your Docker image in a private Docker registry in OCI?
- A. SSH Key Pair
- B. JSON Web Token
- C. Master Encryption Key in OCI Vault
- D. Auth Token
Answer: D
Explanation:
To authenticate with the Oracle Cloud Infrastructure Registry (Container Registry) when using the Docker CLI, you need to use an Auth Token. The Auth Token is created in the OCI console and acts as a password for the Docker login command, providing secure access to the container registry.
NEW QUESTION # 39
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. Enabling scanning of container images stored in OCI Registry
- D. Scanning the image upon ingestion and comparing the image size for changes
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 # 40
How can you scale a deployment named nodejs-deployment to have two replicas?
- A. kubectl scale deployment nodejs-deployment --replicas=2
- B. kubectl resize deployment nodejs-deployment --replicas=2
- C. kubectl set replicas deployment nodejs-deployment --replicas=2
- D. kubectl adjust deployment nodejs-deployment --replicas=2
Answer: A
Explanation:
The kubectl scale command is used to scale the number of replicas in a deployment. By specifying the --replicas flag, you define the desired number of replicas for the deployment.
(kubectl set replicas) is not the correct syntax for scaling a deployment.
(kubectl resize) is not a valid command for scaling a deployment.
(kubectl adjust) is also not a valid Kubernetes command.
NEW QUESTION # 41
While adding variables to your build_spec.yaml file, you made a mistake that resulted in a failed build pipeline.
What is the error you could have made?
- A. Defined variables as exportedVariables to make them available in subsequent stages of the same pipeline
- B. Used vaultVariable to hold the content of the vault secrets in Base64 format
- C. Defined parameters such as the ${VARIABLE_NAME} file and later assigned their values in the Parameters tab of the build pipeline
- D. Defined a field such as type: DOCKER_IMAGE in the outputArtifacts: section to specify the docker image produced by the Build stage
Answer: C
Explanation:
In build_spec.yaml for OCI DevOps, variables must be correctly defined and used according to the specification. If you defined parameters using ${VARIABLE_NAME} and then attempted to assign their values through the Parameters tab in the build pipeline, you may have introduced an error. The syntax and usage of parameters must be properly defined in both the build_spec.yaml and the build pipeline interface.
NEW QUESTION # 42
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