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Linux Foundation CKA Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Services & Networking	20%	- Define and enforce Network Policies - Understand connectivity between Pods - Know how to use Ingress controllers and Ingress resources - Use ClusterIP, NodePort, LoadBalancer service types and endpoints - Understand and use CoreDNS - Use the Gateway API to manage Ingress traffic
Topic 2: Troubleshooting	30%	- Troubleshoot networking - Manage container stdout & stderr logs - Troubleshoot cluster component failure - Evaluate cluster and node logging - Troubleshoot application failure - Understand how to monitor applications
Topic 3: Cluster Architecture, Installation & Configuration	25%	- Understand CRDs, install and configure operators - Prepare underlying infrastructure for installing a Kubernetes cluster - Create and manage Kubernetes clusters using kubeadm - Use Helm and Kustomize to install cluster components - Manage role based access control (RBAC) - Implement and configure a highly-available control plane - Understand extension interfaces (CNI, CSI, CRI, etc.) - Manage the lifecycle of Kubernetes clusters
Topic 4: Workloads & Scheduling	15%	- Use ConfigMaps and Secrets to configure applications - Understand how to run multiple schedulers and configure scheduler policies - Understand Deployments and rolling update/rollback - Understand DaemonSets - Use label selectors to schedule Pods - Understand how scheduler works - Understand Static Pods - Understand resource limits and requests
Topic 5: Storage	10%	- Understand volume mode, access modes and reclaim policies - Understand persistent volume claims primitive - Understand Storage Classes and Persistent Volumes - Understand how to configure applications with persistent storage

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Quiz Linux Foundation - Perfect CKA - Practice Certified Kubernetes Administrator (CKA) Program Exam Test Engine

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Linux Foundation Certified Kubernetes Administrator (CKA) Program Exam Sample Questions (Q17-Q22):

NEW QUESTION # 17
Create an nginx pod and list the pod with different levels of verbosity See the solution below.

Answer:

Explanation:
// create a pod
kubectl run nginx --image=nginx --restart=Never --port=80
// List the pod with different verbosity
kubectl get po nginx --v=7
kubectl get po nginx --v=8
kubectl get po nginx --v=9

NEW QUESTION # 18
Install a kubernetes cluster with one master and one worker using kubeadm

A. This is a straightforward question, you need to install kubernetes cluster using kubeadm with one master and one worker.
Installation is considered success once both master and worker
nodes become available.
Refer : https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/
B. This is a straightforward question, you need to install kubernetes cluster using kubeadm with one master and one worker.
Refer : https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/

Answer: A

NEW QUESTION # 19
You have a Deployment named 'mysql-deployment' running a MySQL database server. You need to store the MySQL root password securely using a Secret. This password should be used by the database server when it starts.

Answer:

Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create the Secret:
- Create a Secret named 'mysql-password' to store the root password.
- Use the 'kubectl create secret generic' command with the '--from-literal' flag to create a generic Secret with a key-value pair:
kubectl create secret generic mysql-password -from-literal=mysql-root password="your_strong_password"
2. Modify the Deployment:
- Update the 'mysql-deployment' Deployment's Pod template to mount the mysql-password' Secret as a volume.
- Use 'volumeMounts' to specify where the Secret should be mounted within the container, and 'volumes' to define the Secret as a volume source.
- Update the MySQL server's configuration (e.g., the 'my.cnf file) to read the password from the mounted volume.

3. Apply the Changes: - Apply the modified Deployment YAML using 'kubectl apply -f mysql-deployment.yamP. 4. Restart the MySQL Pod: - Restart the MySQL pod for it to read the password from the mounted volume. This can be achieved using 'kubectl delete pod'. 5. Verify the Password: - Connect to the MySQL database using the provided password and confirm it works correctly.

NEW QUESTION # 20
List all the pods showing name and namespace with a json path expression

Answer:

Explanation:
See the solution below.
Explanation
kubectl get pods -o=jsonpath="{.items[*]['metadata.name',
'metadata.namespace']}"

NEW QUESTION # 21
A bootstrap USB flash drive has been prepared using a Linux workstation to load the initial configuration of a Palo Alto Networks firewall. The USB flash drive was formatted using file system ntfs and the initial configuration is stored in a file named init-cfg.txt.
The contents of Init-cfg.txt in the USB flash drive are as follows:
type=static
ip-address=10.5.107.19
default-gateway=10.5.107.1
netmask=255.255.255.0
Ipv6-address=2001:400:100::1/64
ipv6-default-gateway=2001:400:100::2
hostname=Ca-FW-DC1
panorama-server=10.5.107.20
panorama-server-2=10.5.107.21
tplname=FINANCE TG4
dgname=finance_dg
dns-primary=10.5.6.6
op-command-modes multi-vsys.jumbo-frame
dhcp-send-hostname=no
dhcp-send-client-id=no
dhcp-accept-server-hostname=no
dhcp-accept-server-domain=no
The USB flash drive has been inserted in the firewalls' USB port, and the firewall has been powered on.Upon boot, the firewall fails to begin the bootstrapping process. The failure is caused because:

A. There must be commas between the parameter names and their values instead of the equal symbols
B. The bootstrap.xml file is a required file, but it is missing
C. The USB must be formatted using the ext4 file system
D. The USB drive has been formatted with an unsupported file system
E. nit-cfg bit is an incorrect filename the correct filename should be init-ofg.xml

Answer: C

NEW QUESTION # 22
......

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