$1.$ Scenario: You are talking to your technical contact at a customer, and they are new to the concept of containers. They have a very large virtual machine footprint but are not certain what a container is$,$ or why they are used.

Question: Which explanation below is most appropriate for describing what a container is to your technical contact?

$$A container is a virtual machine, just much smaller and lighter weight. You can use your existing KVM tooling to manage and handle containers if you choose.$$

$$Containers are just Docker. You need to use the Docker runtime to deploy and manage containers.$$

$$Containers are just a new way of packaging applications, just like RPM$.$

$$A container is a modern approach to application packaging and deployment. It is lighter weight than a virtual machine, and has controls that enforce isolation and manage resource use.$$

$2.$ Question: Which statement is an accurate description of Kubernetes?

Kubernetes is a container controller that manages a collection of containers running on a single node and enables users to control the state of their applications through imperative approaches.

Kubernetes is a technology that manages a group of containers through proprietary interfaces.

Kubernetes is a virtual machine management technology. It is an overlay over KVM and allows users to control the state of their virtual machines through declarative approaches.

Kubernetes is a container orchestrator that manages a cluster of container hosts $($nodes$)$ and enables users to define the desired state of their applications through a declarative architecture.

$3.$ Question: Which $2$ statements regarding Operators are accurate?

$($Choose all correct answers$)$

Operators manage application resources.

Operators are unable to manage the state of Red Hat CoreOS on worker and control plane nodes.

Operators respond to changes in Custom Resource Definitions $($CRDs$),$ driving current application resources to match the desired state specified in the CRD$.$

Cluster operators are elective and may be replaced with other offerings from the Red Hat Marketplace.

$4.$ Scenario: Your customer is finding that their cluster is constantly running out of resources. After investigation they find that $1$ or $2$ users are consuming significant amounts of resources, far above anyone else on the cluster.

The customer wants to know what steps they can take to ensure a user cannot consume more than a set amount of resources on the cluster.

Question: Which option is the correct approach to control this problem?

Write a validating admission webhook that refuses to accept pods that have resource requests higher than a set threshold.

Use Kubernetes quotas to control the resources consumed by these users.

Require users to submit tickets to deploy new pods, then manually validate the resource requests and limits for their pod. Refuse to create pods with resource requests that are too high.

Periodically scan the cluster for pods with high resource requests and delete them.

$5.$ Scenario: You are meeting with a customer contact who wants to know more about Red Hat OpenShift. Specifically, they have asked you about Red Hat OpenShift's capabilities when operating on cloud providers.

Question: Which $2$ statements are true?

$($Choose all correct answers$)$

Red Hat OpenShift supports auto$-$scaling of clusters on all major cloud providers, including AWS, Azure, and Google Compute Platform.

The Assisted Installer must be used to deploy new clusters into AWS and Azure.

Red Hat OpenShift provides automated installation options for all major cloud providers.

Red Hat OpenShift needs to be installed manually on most cloud providers in existence today.

$6.$ Scenario: You are speaking with a junior developer at your customer$$s site. They want to know the quickest way to get their application deployed on Red Hat OpenShift. They have source code available in a repository, but a container is not yet available for their application.

Question: What capability of Red Hat OpenShift would be most relevant to this junior developer?

Source$2$Image $($S$2$I$)$

Red Hat OpenShift Routes

Deploying a container manually using the user interface

Scaling of applications using the user interface