Tech Mahindra Devops Engineer Interview Questions, Process, and Tips

Q1. Explain the Role and Functionality of the Control Plane Components in Kubernetes.
Ans. 
Control plane components in Kubernetes manage the cluster and make decisions about the state of the cluster.
• Control Manager: Ensures that the desired state of the cluster matches the actual state.

• Scheduler: Assigns workloads to nodes based on resource availability and constraints.

• API Server: Acts as the front-end for the Kubernetes control plane and is the primary interface for users and other components.

• etcd: Consiste...read more
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Q2. How Would You Implement Zero-Downtime Deployments in Kubernetes?
Ans. 
Implementing zero-downtime deployments in Kubernetes involves using rolling updates and readiness probes.
• Use rolling updates to gradually replace old pods with new ones

• Configure readiness probes to ensure new pods are ready before routing traffic to them

• Utilize tools like Helm for managing releases and versioning
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Q1. How Can You Ensure High Availability of the etcd Cluster Used by Kubernetes?
Ans. 
To ensure high availability of the etcd cluster used by Kubernetes, you can implement redundancy, monitoring, and disaster recovery strategies.
• Implement a multi-node etcd cluster to ensure redundancy and fault tolerance.

• Utilize monitoring tools like Prometheus and Grafana to track the health and performance of the etcd cluster.

• Set up regular backups and implement disaster recovery plans to quickly recover from failures...read more
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Q2. How Would You Approach Capacity Planning for a Kubernetes Cluster?
Ans. 
Capacity planning for a Kubernetes cluster involves analyzing resource usage, predicting future needs, and scaling infrastructure accordingly.
• Monitor resource usage of pods and nodes using tools like Prometheus and Grafana

• Analyze historical data to identify trends and patterns in resource consumption

• Estimate future resource requirements based on application growth and workload changes

• Scale the cluster by adding or remo...read more
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English communication skills

Q1. What is goal in your life
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Q2. Why give the job
Ans. L have skills, devops engineering, handle technical it
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Q3. What salary your expect
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Q4. Give topic talking about giving topic
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Q5. Last advance to job your company
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Q1. All basice questions
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Q2. All basic question
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Q1. Write scripted pipline
Ans. 
Scripted pipeline for DevOps Engineer interview question
• Define stages for building, testing, and deploying

• Use Jenkinsfile to define pipeline in Jenkins

• Utilize declarative syntax for pipeline configuration

• Leverage tools like Git, Docker, and Kubernetes in pipeline

• Implement error handling and notifications in pipeline
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