[Jan 23, 2023] Free VMware Certified Specialist - vSphere with Tanzu 2022 5V0-23.20 Official Cert Guide PDF Download
VMware 5V0-23.20 Official Cert Guide PDF
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NEW QUESTION 12
Which three elements should be configured by a vSphere administrator after creating vSphere Namespace? (Choose three.)
- A. Storage Policy
- B. NSX Segment
- C. License
- D. Namespace name
- E. Permissions
- F. Capacity and Usage limits
Answer: A,E,F
Explanation:
Creating a Namespace
A vSphere administrator configures permissions and storage before a namespace can be used:
* Assign edit or view permissions to users. Users must be present in a configured single sign-on (SSO) identity source.
* Must assign a VM storage policy to the namespace.
* Can define resource limits (optional).
* Must add a content library to enable the Tanzu Kubernetes Grid Service.
NEW QUESTION 13
Which command provides valid syntax to deploy a vSphere Pod?
- A. docker run containerName
- B. tkg apply -c containerName
- C. kubectl apply -t deployment.yaml
- D. kubectl apply -f deployment.yaml
Answer: D
Explanation:
You can deploy an application on a namespace on a Supervisor Cluster. Once the application is deployed, the respective number of vSphere Pods are created on the Supervisor Cluster within the namespace.
Common kubectl commands include the apply, get, describe, and delete commands:
* The kubectl apply command applies the contents of a YAML file. Typically, this command is used to create a pod or deployment: - kubectl apply -f /path/to/my.yaml
* The kubectl get command returns basic information about an object: - kubectl get pod <pod_name_name>
NEW QUESTION 14
Which two considerations needs to be made when deciding on a virtual machine class type during the process of creating a Tanzu Kubernetes cluster? (Choose two )
- A. Whether the resources provided by the virtual machine class type should be reserved on the host
- B. Connectivity between the Tanzu Kubernetes cluster and the Subscribed Content Library
- C. The amount of CPU. memory, and storage the virtual machine should have
- D. The configuration parameters which need to be edited in the cluster
- E. The storage classes which need to be made available to the cluster
Answer: B,C
NEW QUESTION 15
Which statement describes a characteristic of Supervisor Cluster control plane VMs?
- A. Are manually created by a vSphere administrator
- B. Run system and infrastructure pods
- C. Manage the lifecycle of ESXi hosts
- D. Host developer workloads
Answer: B
Explanation:
The Supervisor Cluster provides the management layer on which Tanzu Kubernetes clusters are built. The Tanzu Kubernetes Grid Service is a custom controller manager with a set of controllers that is part of the Supervisor Cluster. The purpose of the Tanzu Kubernetes Grid Service is to provision Tanzu Kubernetes clusters.
While there is a one-to-one relationship between the Supervisor Cluster and the vSphere cluster, there is a one-to-many relationship between the Supervisor Cluster and Tanzu Kubernetes clusters. You can provision multiple Tanzu Kubernetes clusters within a single Supervisor Cluster. The workload management functionality provided by the Supervisor Cluster gives you control over the cluster configuration and lifecycle, while allowing you to maintain concurrency with upstream Kubernetes.
NEW QUESTION 16
Which open-source project extends the Docker registry source code to provide an enterprise-class registry server?
- A. Harbor
- B. Namespace
- C. Github
- D. Manifest
Answer: A
NEW QUESTION 17
The network topology for a Supervisor Cluster deployed using the vSphere networking stack, and a HAProxy load balancer is being planned. In addition to the control plane management IP range and services P range, how many non-overlapping P address ranges are needed?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 18
Which is a valid version change for a Tanzu Kubernetes cluster running Kubernetes version 1.16.7?
- A. Downgrade one patch version (e.g.. 1.16.5)
- B. Upgrade one major version (e.g.. 2.0.1)
- C. Upgrade two minor versions (e.g., 1.18.0)
- D. Upgrade one minor version (e.g.. 1.17.0)
Answer: D
NEW QUESTION 19
What is the correct process to store images in a project on the Registry Service?
- A. Use the vSphere Client to upload the image to the Registry Service
- B. Use the vSphere Client to upload the image the content library
- C. Use the docker push command
- D. Use the kubect1 push command
Answer: C
Explanation:
https://docs.docker.com/docker-hub/repos/
* Registry Service: Developers can store and manage Docker and OCI images using Harbor. Harbor is an open-source container image registry that secures images with role-based access control.
Procedure
Login to Harbor Registry with the vSphere Docker Credential Helper.
docker-credential-vsphere login <container-registry-IP> --user [email protected] Note:While providing --user username is acceptable for login, you should use the UserPrincipalName (UPN) syntax ( --user [email protected]) to login and use docker push commands.
Tag the image that you want to push to the project in Harbor Registry with same name as the namespace, where you want to use it:
docker tag <image-name>[:TAG] <container-registry-IP>/<project-name>/<image-name>[:TAG] For example:
docker tag hello-world:latest 10.179.145.77/tkgs-cluster-ns/hello-world:latest docker images REPOSITORY TAG IMAGE ID CREATED SIZE
10.179.145.77/tkgs-cluster-ns/hello-world latest bf756fb1ae65 10 months ago 13.3kB hello-world latest bf756fb1ae65 10 months ago 13.3kB To push an image to a project in Harbor, run the following command:Syntax:
docker push <container-registry-IP>/<namespace-name>/<image_name>
For example:
docker push 10.179.145.77/tkgs-cluster-ns/hello-world:latest
Expected result.
The push refers to repository [10.179.145.77/tkgs-cluster-ns/hello-world]
9c27e219663c: Pushed
latest: digest: sha256:90659bf80b44ce6be8234e6ff90a1ac34acbeb826903b02cfa0da11c82cbc042 size: 525
NEW QUESTION 20
A development team has deployed a Tanzu Kubernetes cluster and would like to verify the version of Kubernetes that is running. Which command will show this information?
- A. kubect1 get version
- B. kubect1 explain tkg dev-cluster
- C. kubect1 get vm dev-cluster
- D. kubect1 describe tkc dev-cluster
Answer: C
NEW QUESTION 21
How is the storage selected for the Harbor pods when the embedded Harbor image registry is enabled?
- A. vCenter Server automatically chooses a VM storage policy.
- B. An administrator selects a specific datastore as part of enablement.
- C. An administrator selects a VM storage policy as part of enablement.
- D. vCenter Server automatically selects a local ESXi host datastore.
Answer: C
Explanation:
Enabling Harbor Image Registry
The vSphere administrator uses the vSphere Client to enable Harbor. To enable this component, select a cluster, select Configure > Namespaces > Image Registry, and click ENABLE HARBOR:
* A VM Storage Policy is required to allocate storage for the Harbor pods.
* An IP Address, based on the ingress CIDR range, is allocated for the Harbor management interface.
* After a few minutes, Harbor is deployed and running. 184
NEW QUESTION 22
The Gold storage policy has been assigned to the Web namespace, and the DevOps engineer wants to place a persistent volume for the Web application in the Gold storage class.
How should this goal be accomplished?
- A. Assign the persistent volume to the Gold storage class
- B. Indicate the Gold storage class in the persistent volume claim specification
- C. Configure tag-based placement for the persistent volume
- D. Indicate the Gold storage class in the persistent volume specification
Answer: B
Explanation:
* VM storage policies are translated into Kubernetes storage classes.
* Developers can access all assigned VM storage policies in the form of storage classes. * Developers cannot manage storage classes.
NEW QUESTION 23
Which two items must be provided before a vSphere with Tanzu Supervisor Namespace can be created?
(Choose two.)
- A. vSphere with Tanzu Enabled Cluster
- B. Storage Policy
- C. DNS-compliant Name
- D. Permissions
- E. Resource Limits
Answer: C,D
NEW QUESTION 24
Which kubectl command should be used to change the active vSphere namespace to namespace-01?
- A. kubectl config change-context namespace-01
- B. kubectl config use-context namespace-01
- C. kubectl get ns namespace-01
- D. kubectl describe ns namespace-01
Answer: A
NEW QUESTION 25
How can a vSphere administrator replace the Supervisor Cluster API endpoint certificate?
- A. Use kubectl to replace the Supervisor Cluster API endpoint certificate.
- B. Use the certificate-manager CLI utility to replace the Supervisor Cluster API endpoint certificate.
- C. Use the vSphere Client to replace the NSX Load Balancer certificate.
- D. Use the vSphere Client to replace the Workload platform MTG certificate.
Answer: D
Explanation:
As a vSphere administrator, you can replace the certificate for the virtual IP address (VIP) to securely connect to the Supervisor Cluster API endpoint with a certificate signed by a CA that your hosts already trust. The certificate authenticates the Kubernetes control plane to DevOps engineers, both during login and subsequent interactions with the Supervisor Cluster.
Prerequisites
Verify that you have access to a CA that can sign CSRs. For DevOps engineers, the CA must be installed on their system as a trusted root.
Procedure
In the vSphere Client, navigate to the Supervisor Cluster.
Click Configure then under Namespaces select Certificates.
In the Workload platform MTG pane, select Actions > Generate CSR.
Provide the details for the certificate.
Once the CSR is generated, click Copy.
Sign the certificate with a CA.
From the Workload platform MTG pane, select Actions > Replace Certificate.
Upload the signed certificate file and click Replace Certificate.
Validate the certificate on the IP address of the Kubernetes control plane.
NEW QUESTION 26
Which two functions are provided by the NSX Container Rug-in (NCP)? (Choose two.)
- A. Configures Overlay Transport Zones
- B. Creates an NSX-T logical topology for a Kubernetes cluster and a separate logical network for each Kubernetes namespace
- C. Implements Kubernetes Ingress with an NSX-T layer 4 load balancer
- D. Implements Kubernetes Ingress with an NSX-T layer 7 load balancer
- E. Integrates with container-based PaaS such as Docker
Answer: B,D
NEW QUESTION 27
The application development team is pushing a Kubernetes application into production. I consists of an application server and a database. The team wants to ensure that only the production application server can access the production database.
Can the development team meet this requirement using Kubernetes Network Policy?
- A. Yes. by logging in to NSX Manager and creating a firewall rules to only allow the production application server pod to talk to the database
- B. No, Kubernetes Network Policy does not support this action.
- C. Yes, by using kubect1 to create a Network Policy that only allows pods on the same network segment to talk to each other.
- D. Yes, by using kubect1 to create a policy that disables pod to pod communication in the Namespace
Answer: C
NEW QUESTION 28
Which requirement is valid for vSphere with Tanzu on vSphere Distributed Switch Network?
- A. Workload networks that are routable to the primary workload network
- B. HAProxy Frontend hterface that has a common subnet and bridged interface to workload networks
- C. Network Interface Cards with Single Root IO Visualization Support (SR-IOV)
- D. HAProxy Virtual Server IP range that is allocated to NSX-T edge router external interface
Answer: D
NEW QUESTION 29
The application development team is pushing a Kubernetes application into production. I consists of an application server and a database. The team wants to ensure that only the production application server can access the production database.
Can the development team meet this requirement using Kubernetes Network Policy?
- A. Yes. by logging in to NSX Manager and creating a firewall rules to only allow the production application server pod to talk to the database
- B. No, Kubernetes Network Policy does not support this action.
- C. Yes, by using kubect1 to create a Network Policy that only allows pods on the same network segment to talk to each other.
- D. Yes, by using kubect1 to create a policy that disables pod to pod communication in the Namespace
Answer: C
Explanation:
If you want to control traffic flow at the IP address or port level (OSI layer 3 or 4), then you might consider using Kubernetes NetworkPolicies for particular applications in your cluster. NetworkPolicies are an application-centric construct which allow you to specify how a pod is allowed to communicate with various network "entities" (we use the word "entity" here to avoid overloading the more common terms such as "endpoints" and "services", which have specific Kubernetes connotations) over the network. NetworkPolicies apply to a connection with a pod on one or both ends, and are not relevant to other connections.
NEW QUESTION 30
How does Kubernetes implement the vSphere storage policy in vSphere with Tanzu?
- A. Persistent Volume
- B. Storage class
- C. Static Persistent Volume
- D. Paravirtual CSl
Answer: A
NEW QUESTION 31
How can you remove unreferenced container images from a project in an embedded Registry Service?
- A. Delete images in Content Library.
- B. Purge a namespace using the vSphere Client.
- C. Use kubectl to delete the images.
- D. Delete the namespace using the vSphere Client.
Answer: A
Explanation:
Deleting Artifact:
When an artifact is not referenced by any OCI index, you can delete the artifact freely which will delete its manifest and all associated tags.
When an artifact is referenced by an OCI index, you cannot delete it. In order to delete this artifact, you must first delete all OCI indexes referencing this artifact first, remembering that an artifact can be referenced by multiple parents artifacts pushed onto Harbor by different users. So when deleting an OCI index holding 9 children artifacts not referenced by any other index and 1 child artifact referenced by another index, only 9 out of 10 children artifacts will be deleted.
To delete any artifact in the Harbor interface, click on the artifact and select 'Delete' and confirm.
Not Purge: As a vSphere administrator, you can purge the images for a project in the private image registry by request from DevOps engineers. Purging images from the private image registry deletes all references to the images made by pods, but it does not remove the images from the image registry.
NEW QUESTION 32
Which process should be used to upgrade the vSphere with Tanzu Supervisor Cluster?
- A. Allow vSphere with Tanzu Supervisor Cluster to upgrade automatically when new versions are available.
- B. Use the vSphere Client, navigate to vSphere lifecycle Manager, and apply updates
- C. Use the vSphere Client, navigate to Workload Management, and apply updates.
- D. Use kubectl, and apply an update manifest specification to the Supervisor Cluster.
Answer: B
NEW QUESTION 33
An administrator is tasked with increasing the amount of CPU and memory in an existing Tanzu Kubernetes cluster.
Which change must the administrator complete to ensure the cluster scales successfully when updating the YAML definition?
- A. Increase the number of control plane nodes
- B. Manually update the CPU and memory of the nodes
- C. Increase the number of worker nodes
- D. Update the Virtual Machine Class Type
Answer: D
Explanation:
Virtual Machine Class Types for Tanzu Kubernetes Clusters
A virtual machine class defines the resource sizing for Tanzu Kubernetes cluster VMs: * CPU * Memory * Storage Virtual machine class types range from extra small (xsmall) to extra large (xlarge). Class types are categorized as guaranteed or best effort:
* Guaranteed: Reserve all CPU and memory allocations. * Best effort: Allocate the same CPU and memory but do not reserve the resources.
The class type guaranteed-small allocates 2 CPU, 4 GB of memory, and 16 GB of storage and reserves CPU and memory allocations. Custom virtual machine class types cannot be defined.
NEW QUESTION 34
Which object provides user access to applications running on vSphere with Tanzu?
- A. Internal load balancer
- B. External load balancer
- C. vSphere Distributed Switch
- D. Round-robin DNS
Answer: C
NEW QUESTION 35
Which kubectl command is used to list al pods in the current active namespace?
- A. kubectl get services
- B. kubectl get nodes
- C. kubectl list pods
- D. kubectl get pods
Answer: D
NEW QUESTION 36
To which set of networks are the Supervisor Cluster nodes attached when deploying with an NSX-T network topology?
- A. Workload and NSX Overlay
- B. Frontend and Workload
- C. Management and NSX Overlay
- D. Frontend and Management
Answer: B
NEW QUESTION 37
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