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The CKAD exam is a hands-on, performance-based exam that tests the candidate's ability to design and deploy applications on a Kubernetes cluster. CKAD exam is conducted online and consists of 19 tasks that must be completed within 2 hours. The tasks are designed to simulate real-world scenarios and require the candidate to demonstrate their ability to work with Kubernetes objects, configure networking and storage, troubleshoot issues, and deploy applications in a secure and reliable manner.
The CKAD exam consists of a set of performance-based tasks that must be completed within a three-hour time frame. The tasks are designed to simulate real-world scenarios that developers may encounter when working with Kubernetes. CKAD exam covers a wide range of topics, including Kubernetes architecture, deployment, configuration, troubleshooting, and security. Candidates must demonstrate a deep understanding of these topics and be able to apply their knowledge to solve complex problems.
NEW QUESTION # 10
Refer to Exhibit.
Task:
Create a Deployment named expose in the existing ckad00014 namespace running 6 replicas of a Pod.
Specify a single container using the ifccncf/nginx: 1.13.7 image Add an environment variable named NGINX_PORT with the value 8001 to the container then expose port 8001
Answer:
Explanation:
Solution:
NEW QUESTION # 11
Exhibit:
Context
As a Kubernetes application developer you will often find yourself needing to update a running application.
Task
Please complete the following:
* Update the app deployment in the kdpd00202 namespace with a maxSurge of 5% and a maxUnavailable of 2%
* Perform a rolling update of the web1 deployment, changing the Ifccncf/ngmx image version to 1.13
* Roll back the app deployment to the previous version
- A. Solution:
- B. Solution:
Answer: A
NEW QUESTION # 12
Exhibit:
Given a container that writes a log file in format A and a container that converts log files from format A to format B, create a deployment that runs both containers such that the log files from the first container are converted by the second container, emitting logs in format B.
Task:
* Create a deployment named deployment-xyz in the default namespace, that:
* Includes a primary
lfccncf/busybox:1 container, named logger-dev
* includes a sidecar Ifccncf/fluentd:v0.12 container, named adapter-zen
* Mounts a shared volume /tmp/log on both containers, which does not persist when the pod is deleted
* Instructs the logger-dev
container to run the command
which should output logs to /tmp/log/input.log in plain text format, with example values:
* The adapter-zen sidecar container should read /tmp/log/input.log and output the data to /tmp/log/output.* in Fluentd JSON format. Note that no knowledge of Fluentd is required to complete this task: all you will need to achieve this is to create the ConfigMap from the spec file provided at /opt/KDMC00102/fluentd-configma p.yaml , and mount that ConfigMap to /fluentd/etc in the adapter-zen sidecar container
- A. Solution:
- B. Solution:
Answer: A
NEW QUESTION # 13
Refer to Exhibit.
Set Configuration Context:
[student@node-1] $ | kubectl
Config use-context k8s
Task
You have rolled out a new pod to your infrastructure and now you need to allow it to communicate with the web and storage pods but nothing else. Given the running pod kdsn00201 -newpod edit it to use a network policy that will allow it to send and receive traffic only to and from the web and storage pods.
Answer:
Explanation:
To allow a pod to send and receive traffic only to and from specific pods, you can use network policies in Kubernetes.
First, you will need to create a network policy that defines the allowed traffic. You can create a network policy yaml file with the following rules:
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: newpod-network-policy
namespace: default
spec:
podSelector:
matchLabels:
app: kdsn00201-newpod
ingress:
- from:
- podSelector:
matchLabels:
app: web
- podSelector:
matchLabels:
app: storage
This policy will only allow incoming traffic to the pod with the label app=kdsn00201-newpod from pods with the label app=web or app=storage. If you have different labels on your web and storage pods please update the matchLabels accordingly.
Once you have created the network policy, you can apply it to the cluster by running the following command:
kubectl apply -f <network-policy-file>.yaml
This will apply the network policy to the cluster, and the newpod will only be able to send and receive traffic to and from the web and storage pods.
Please note that, NetworkPolicy resource is not available by default, you need to enable the NetworkPolicy feature on your Kubernetes cluster. This feature is enabled by default on some clusters and must be explicitly enabled on others. You can check if NetworkPolicy is available by running the command kubectl api-versions | grep networking Also, you need to ensure that the pods that you want to allow traffic to and from are running on the same namespace.
NEW QUESTION # 14
Refer to Exhibit.
Task:
The pod for the Deployment named nosql in the craytisn namespace fails to start because its container runs out of resources.
Update the nosol Deployment so that the Pod:
1) Request 160M of memory for its Container
2) Limits the memory to half the maximum memory constraint set for the crayfah name space.
Answer:
Explanation:
Solution:
NEW QUESTION # 15
Context
Task:
A pod within the Deployment named buffale-deployment and in namespace gorilla is logging errors.
1) Look at the logs identify errors messages.
Find errors, including User "system:serviceaccount:gorilla:default" cannot list resource "deployment" [...] in the namespace "gorilla"
2) Update the Deployment buffalo-deployment to resolve the errors in the logs of the Pod.
The buffalo-deployment 'S manifest can be found at -/prompt/escargot/buffalo-deployment.yaml
Answer:
Explanation:
Solution:
NEW QUESTION # 16
Context
Task
A Deployment named backend-deployment in namespace staging runs a web application on port 8081.
Answer:
Explanation:
Solution:
NEW QUESTION # 17 
Task
You are required to create a pod that requests a certain amount of CPU and memory, so it gets scheduled to-a node that has those resources available.
* Create a pod named nginx-resources in the pod-resources namespace that requests a minimum of 200m CPU and 1Gi memory for its container
* The pod should use the nginx image
* The pod-resources namespace has already been created
Answer:
Explanation:
See the solution below.
Explanation
Solution:
NEW QUESTION # 18
Context
Task:
Modify the existing Deployment named broker-deployment running in namespace quetzal so that its containers.
1) Run with user ID 30000 and
2) Privilege escalation is forbidden
The broker-deployment is manifest file can be found at:
Answer:
Explanation:
Solution:
NEW QUESTION # 19
Context
Anytime a team needs to run a container on Kubernetes they will need to define a pod within which to run the container.
Task
Please complete the following:
* Create a YAML formatted pod manifest
/opt/KDPD00101/podl.yml to create a pod named app1 that runs a container named app1cont using image Ifccncf/arg-output with these command line arguments: -lines 56 -F
* Create the pod with the kubect1 command using the YAML file created in the previous step
* When the pod is running display summary data about the pod in JSON format using the kubect1 command and redirect the output to a file named /opt/KDPD00101/out1.json
* All of the files you need to work with have been created, empty, for your convenience
Answer:
Explanation:
Solution:
NEW QUESTION # 20
Context
Task:
Update the Deployment app-1 in the frontend namespace to use the existing ServiceAccount app.
Answer:
Explanation:
Solution:
NEW QUESTION # 21 
Task:
Update the Deployment app-1 in the frontend namespace to use the existing ServiceAccount app.
Answer:
Explanation:
See the solution below.
Explanation
Solution:
Text Description automatically generated
NEW QUESTION # 22
Context
Task:
Create a Deployment named expose in the existing ckad00014 namespace running 6 replicas of a Pod. Specify a single container using the ifccncf/nginx: 1.13.7 image Add an environment variable named NGINX_PORT with the value 8001 to the container then expose port 8001
Answer:
Explanation:
Solution:
NEW QUESTION # 23
Exhibit:
Task
Create a new deployment for running.nginx with the following parameters;
* Run the deployment in the kdpd00201 namespace. The namespace has already been created
* Name the deployment frontend and configure with 4 replicas
* Configure the pod with a container image of lfccncf/nginx:1.13.7
* Set an environment variable of NGINX__PORT=8080 and also expose that port for the container above
- A. Solution:
- B. Solution:
Answer: A
NEW QUESTION # 24 
Context
You are tasked to create a secret and consume the secret in a pod using environment variables as follow:
Task
* Create a secret named another-secret with a key/value pair; key1/value4
* Start an nginx pod named nginx-secret using container image nginx, and add an environment variable exposing the value of the secret key key 1, using COOL_VARIABLE as the name for the environment variable inside the pod See the solution below.
Answer:
Explanation:
Explanation
Solution:
NEW QUESTION # 25
Refer to Exhibit.
Task
Create a new deployment for running.nginx with the following parameters;
* Run the deployment in the kdpd00201 namespace. The namespace has already been created
* Name the deployment frontend and configure with 4 replicas
* Configure the pod with a container image of lfccncf/nginx:1.13.7
* Set an environment variable of NGINX__PORT=8080 and also expose that port for the container above
Answer:
Explanation:
Solution:
NEW QUESTION # 26
Exhibit:
Task
A deployment is falling on the cluster due to an incorrect image being specified. Locate the deployment, and fix the problem.
- A. Pending
Answer: A
NEW QUESTION # 27
......
What is the difference between Kubernetes and OpenStack?
OpenStack is a service-oriented cloud computing platform. It is massive and complex. You can't use it to develop multi-container applications. It enables multiple users to access a cloud platform. OpenStack is a framework that can be used by many different cloud providers. You can install it on your own infrastructure or any cloud provider. Windows support is not available but Linux and macOS are supported. You can use it with IaaS or PaaS providers. Allows you to create private clouds with different authentication methods and storage options. Kubernetes provides a lot of additional configuration options. Cluster size is limited and can't be changed. You must deploy all your applications and then adjust each application's requirements. Not that easy to use, and you need to know a lot of details about it. Concepts are different from Kubernetes. You can use it if you have no programming skills or Linux knowledge. Absolutely necessary for implementing Kubernetes. It is scalable. Good support for written documentation. Great support for developing open-source software.
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