Red Hat OpenShift Developer II DO288 Practice Exam

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• Which command links a secret to a serviceaccount?
• To enable external access to an application, which OpenShift object should be configured to map a hostname to the service?
• What feature allows a BuildConfig to automatically start a new build when a change is pushed to the connected Git repository?
• Which command stops a running container named my-httpd-container?
• Which command links a secret named secret name to the builder service account?
• To set a local reference policy when importing an image, which of the following commands is used?
• Which command lists the images in Podman?
• Which command sets a readiness probe on a deploymentconfig with a specified URL and timings?
• Which command is used to stream live logs of a pod?
• Which command creates a readiness probe for a deployment config "myapp" that GETs /healthz on port 8080 with a 20-second period?
• Which command builds an S2I builder image with Podman using a directory and a specific tag NAME:TAG?
• How can a private Git repository be accessed by a BuildConfig during a build?
• Which command retrieves logs for a deployment configuration?
• Which resource is used to define automated builds from source or image into a deployable image?
• Which command starts a build with an environment variable KEY=VALUE?
• Which command deploys a cloud-native application using the Fabric8 Maven plugin?
• Which OpenShift object represents a non-human identity used by pods to access resources?
• Which command retrieves logs from a container managed by Podman?
• Which statement correctly describes how per-environment configuration can be supplied without changing the template body?
• Which TLS termination option terminates TLS at the router?
• Which Podman command searches for images related to rhel?
• Which resource tracks image versions and triggers deployments when a new image is available?
• To run a Dockerfile with a random user instead of 'wildfly', which sequence of changes should be applied?
• What is the purpose of the --from-file flag when creating a secret for a private registry, as shown in the material?
• Which command publishes a locally built S2I builder image to quay.io?
• Which Pod/Container specification element carries the CPU and memory requests and limits for a container?
• How can a Secret be consumed by a pod as files?
• Which command would display the hostname of a container by reading /etc/hostname inside the container?
• Which step must you perform before copying an OCI layout to a private registry using skopeo, according to the material?
• How do you watch the live logs of a running pod?
• Which OpenShift resource stores versions of container images and provides a stable reference for deployments?
• Which command removes a local image?
• After configuring a SELinux fcontext for a directory, which command applies the context to the directory and its contents?
• In RBAC, which object binds a Role to a user within a namespace?
• Which command reveals the port mapping for a container?
• The command "sudo podman cp todoapi:/opt/jboss/standalone/conf/standalone.conf ." performs which action?
• Which two commands create a ConfigMap from a literal key/value and then propagate it to a DeploymentConfig as an environment variable?
• How can you quickly assess the rollout status of a deployment from the CLI?
• Which command creates a new OpenShift application from a Git repository with a specific build environment variable and context directory?
• Which command creates a new service account named myserviceaccount?
• How do you set the build log level to 4 for a BuildConfig named "name" in OpenShift?
• Which command runs a container with the name my-httpd-container in detached mode using the image rhscl/httpd-24-rhel7?
• Which command validates a JSON file using Python's standard tooling?
• How do pods in a service discover each other within a namespace using DNS?
• Which resource stores non-sensitive configuration data used by pods?
• In Podman run, what does the -p hostPort:containerPort mapping accomplish?
• Which command patches a deployment config to use a new service account named 'myserviceaccount'?
• Which command produces a Dockerfile from an S2I build?
• Which command sets a liveness probe on a deploymentconfig with initial delay, timeout, and URL?
• To import an image into an image stream named myis from a private registry and confirm the import, which command is appropriate?
• Which command lists recent events in a namespace that can help with debugging?
• Which command grants the system:image-puller role to the service account myapp so it can pull from an internal registry?
• Which control plane component runs the API surface?
• Which command deletes one or more images?
• Which command would patch a deployment config to set the service account name to myserviceaccount?
• Which command processes a template file to YAML output?
• Which command connects to an external MySQL database given host, user, password, and database name?
• Which command configures a liveness HTTP health check for deployment config "myapp" with an initial delay of 30 seconds, a single success threshold, and a failure threshold of 3?
• Which command creates an image stream referencing a container image on quay.io?
• When mounting a host directory into a container, which condition must be true for the container to write to the directory?
• Which command tags an existing image under a new repository/name and tag in Podman?
• Which command starts a container in detached mode with image rhscl/httpd-24-rhel7:2.4-36.8?
• The command "sudo podman run -v /conf:/etc/httpd/conf -d do180/apache" primarily does which of the following?
• To grant a user read access to resources in a project using RBAC, which approach is correct?
• Which command grants the anyuid SCC to the myserviceaccount?
• What OpenShift resource is used to reference a specific image version for deployment or build processes in OpenShift?
• What is the purpose of an ImageStreamTag?
• Which command configures a post-commit build hook to run a script ("curl http://api.com/user/${USER}") for a BuildConfig named "name"?
• Which command deletes all resources with label app=appname for an app named app?
• Which resource controls network traffic between pods within a namespace?
• Which tool provides a Kubernetes-native approach to building and running CI/CD pipelines in OpenShift?
• In the example, which host directory maps to the container's MySQL data directory?
• Which command creates a liveness probe for a deployment config "myapp" that uses an Open TCP on port 3306 with a 20-second period and 1-second timeout?
• What OpenShift object enables parameterized deployment of multiple resource sets?
• Which command creates a secret regtoken from a dockerconfigjson file with the proper type for use by Kubernetes?
• Which command executes a new command inside a running pod or container using OpenShift style syntax?
• How can you populate environment variables in a container from a ConfigMap?
• Which command demonstrates exposing port 8080 on the host to port 80 inside the container?
• Which command scales a deployment config to a specified number of replicas?
• How do you revert a failed deployment to the previous revision?
• Which command creates a new process inside a running container using Podman or OpenShift tooling?
• Which OpenShift object governs security privileges for pods (e.g., runAsUser, capabilities)?
• In the oc new-app example, which flag specifies that a build environment variable should be applied from a registry URL?
• Which command retrieves the list of image stream tags to verify an image stream was created?
• Which command outputs the result of processing a template to a YAML file named mysqlProcessed.yaml?
• Which command enables horizontal pod autoscaling for a deployment config named frontend with min 1, max 5, cpu-percent 80?
• Which command creates a new isolated project in OpenShift?
• Which command creates a service of type ExternalName that points to an external host name?
• Which command creates a secret named regtoken from a docker config JSON file to access a private registry?
• What is the default value of BUILD_LOGLEVEL if not specified?
• Which command runs a container with environment variables GREET and NAME and prints them using printenv?
• Which command prints the IP address of the most recently started container?
• Which probes determine if a pod is ready to receive traffic and if it is alive?
• In the S2I build command, what does the option --as-dockerfile <destination>/Dockerfile do?
• Which option in the oc new-app command is used to specify the directory within a Git repository to use for the build?
• In OpenShift, which resource is used to track and reference container images within the cluster?
• How do you switch the current namespace for subsequent OC commands without re-authenticating?
• Which command sends a SIGKILL to a container named my-httpd-container?
• To remove a Kubernetes/OpenShift resource defined in YAML, which command is used?
• Which command runs a container in detached mode with image rhscl/httpd-24-rhel7?
• Which resource stores sensitive data such as passwords and keys for pods?
• Which command updates the build configuration to set the build log level to 4?
• What is the standard command to scale a Deployment to a given replica count?
• Which command sets a post-commit bash-based build hook?
• In OpenShift, which command starts a new build for the given build configuration named "name"?
• How do you apply declarative configuration stored in YAML to the cluster?
• What is the purpose of OpenShift Pipelines?
• Which TLS termination option terminates TLS at the router and re-encrypts to the backend?
• How do you configure OpenShift to trigger a build when a commit is pushed to the Git repository?
• How can you run more than one container in a single pod?
• What resources are commonly created automatically when you run oc new-app against a Git repository?
• Which command creates the directory /var/dbfiles on the host?
• Which tool is used to copy an OCI layout from a local folder to a private registry, requiring a login via Podman first?
• In Tekton, which primitive defines a reusable unit of work that can be composed into pipelines?
• How can you expose a service externally so that clients can reach it?
• Which RBAC object binds a role to a user or service account within a namespace?
• What TLS termination modes does OpenShift Route support?
• Which deployment strategy settings control how many pods can be unavailable or created during a rollout to minimize downtime?
• Which OpenShift object enforces namespace-level resource usage limits?
• To view logs for a specific build "name-1" in OpenShift, which command?
• Which resource pair is commonly used together to track image versions and drive deployment updates in OpenShift pipelines?
• Which command grants the image-puller role to service accounts from another OpenShift project?
• Where do you specify per-container CPU and memory requests and limits?
• In Tekton, what would you create to encapsulate a single, reusable unit of work?
• Where do you access the OpenShift Web Console for cluster operations?
• Which command applies a ConfigMap as environment variables to a DeploymentConfig?
• Which resource is typically used to deploy applications with rolling updates in OpenShift 4?
• What command scales a Deployment to a desired number of replicas?
• Which command links a secret to the builder service account?
• Which command verifies that a private image stream has been created and is ready for use?
• What is the default location for s2i scripts on the s2i image?
• How do pods in a service discover each other using DNS within a namespace?
• Which command configures a post-commit build hook to run a command (bundle exec rake test --verbose) for a BuildConfig named "name"?
• Which command publishes a locally built image to quay.io using skopeo?
• Which command starts an interactive Bash session in a new container using ubi7/ubi:7.7?
• Which command can be used to check the deployment strategy of a deployment config?
• Which command links a secret to the default service account for image pulling?
• How would you log into quay.io using Podman?
• Which command requests a new build for an application?
• OpenShift Pipelines are built on which workflow engine?
• Which component runs on OpenShift worker nodes to manage containers?
• Which command links the secret 'db-secret' to the serviceaccount named 'default'?
• Which command deletes all resources with label app=appname?
• Which OpenShift/Kubernetes feature lets you see resource usage of nodes and pods?
• In a workflow that shares a private image stream, which action is performed first to enable cross-project access to the image?
• To describe metadata for a specific image stream named image-stream-name, which command should you run?
• Which OpenShift resource allows referencing a specific image tag within an ImageStream to trigger a deployment?
• Which OpenShift command would deploy an image from Quay into a new deployment config with a specific name?
• After processing a template, which command creates resources from the resulting YAML file?
• Which command fetches logs specifically for a BuildConfig, ensuring other log paths are not used?
• What is the effect of adding an image trigger to a build config?
• Which command pulls an image named rhel from the registry using Podman?
• What is the primary purpose of a Kubernetes Service in OpenShift?
• Which command lists the templates available in the OpenShift namespace?
• To stream live logs for the BuildConfig named "name" in OpenShift, which command is used?
• In BuildConfig, which strategy uses a builder image to assemble application code?
• Which command would display the deployment strategy by filtering the deployment config description?
• Which RBAC object grants namespace-scoped permissions to users or service accounts?
• Which concept lets you tag and track a specific image version within the cluster's image catalog for use in builds and deployments?
• What UID is referenced for the Red Hat provided MySQL service in this setup?
• Which approach allows per-environment customization while reusing the same template or manifest?
• Which command demonstrates overriding a container's default binaries by mounting the host's /bin directory?
• Which command starts a build for a given build config with an environment variable KEY=VALUE using the exact syntax without quotes?
• What is the Podman command to log in to registry.access.redhat.com?
• Which command adds an image trigger to a build configuration from a specific image tag?
• Which OpenShift object maps a host to a service for external access?
• To describe a BuildConfig named "name" in OpenShift, which command is correct?
• Which control plane component is responsible for scheduling pods to nodes?
• Which TLS termination option passes TLS end-to-end to the pods?
• The command "sudo podman cp standalone.conf todoapi:/opt/jboss/standalone/conf/standalone.conf" performs which operation?
• Which Podman command loads an image from a tar file?
• Which of the following is NOT a valid imagePullPolicy value in Kubernetes?
• How do you provide persistent storage to a pod in OpenShift?
• Which command demonstrates passing multiple parameters to a template processor while directing output to a file?
• Where is the S2I script located?
• Which command builds an S2I builder image with Podman from the current directory and tags it with the provided name?
• To retrieve the webhook secret for a BuildConfig, which command should you run?
• What command streams logs from a specific build named jhost in real time?
• Which control plane component is responsible for running controllers that regulate cluster state?
• Which of the following commands applies the SELinux file context type container_file_t to a directory and its contents?
• Which OpenShift command disables image change triggers on a DeploymentConfig named myapp?
• How do you manually trigger a BuildConfig build from the CLI?
• Which resource tag denotes a specific version of an image within an ImageStream?
• Which Podman option binds a host directory to a container path during run?
• What is the standard path to the S2I bin directory for an application?
• Which command creates a deployment config using a shared image stream named shared/myis?
• What is a common pattern to implement CI/CD for apps running on OpenShift using built-in resources?
• What does the oc config view command display?
• Which command starts a BuildConfig build for a given name?
• In OpenShift, which command cancels a running build named "name"?
• Which command lists recent OpenShift events?
• To start a new build using the webhook URL, which curl command is correct?
• Which Podman command saves an image to a tar file using an optional output file name?
• To delete a build configuration named "name" in OpenShift, which command is used?