Jio Devops Engineer Interview Questions, Process, and Tips

Q1. What is ELK stack
Ans. 
The ELK stack is a powerful set of tools for searching, analyzing, and visualizing log data in real-time.
• ELK stands for Elasticsearch, Logstash, and Kibana.

• Elasticsearch is a distributed search and analytics engine that stores and indexes data.

• Logstash is a data processing pipeline that ingests data from various sources, transforms it, and sends it to Elasticsearch.

• Kibana is a visualization tool that allows users to ex...read more
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Q2. Kubernetes questions
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Q1. Explain about pipeline What is provisoner in terraform etc
Ans. 
A pipeline is a series of automated steps that allow for the continuous integration and delivery of software.
• A pipeline typically includes stages such as building, testing, and deploying code.

• Tools like Jenkins, GitLab CI/CD, and AWS CodePipeline are commonly used for creating pipelines.

• Pipelines help in automating the software development process and ensuring faster delivery of updates.

• Provisioner in Terraform is a to...read more
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Q2. Cicd process explained
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CI/CD process automates the building, testing, and deployment of code changes.
• Continuous Integration (CI) involves automatically building and testing code changes frequently.

• Continuous Deployment (CD) involves automatically deploying code changes to production.

• CI/CD pipelines use tools like Jenkins, GitLab CI/CD, or CircleCI to automate the process.

• Automated testing is a key component of CI/CD to ensure code quality.

• CI...read more
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All basics topics like profit and loss etc

Q1. Related to sql queries and basic cs fundamental questions.
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Q1. What is ssh Port numb Process and logs Dns
Ans. 
SSH (Secure Shell) is a network protocol used for secure communication between a client and a server.
• SSH uses port number 22 by default for communication.

• The SSH process involves authentication, encryption, and data exchange between the client and server.

• SSH logs can be used for auditing and troubleshooting purposes.

• DNS (Domain Name System) is not directly related to SSH but can be used to resolve hostnames to IP addre
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Q2. Explain dhcp process and dora process
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DHCP process involves four steps - Discover, Offer, Request, Acknowledge. DORA process is the sequence of these steps.
• DHCP Discover - Client broadcasts a request for IP address

• DHCP Offer - Server responds with an available IP address

• DHCP Request - Client requests the offered IP address

• DHCP Acknowledge - Server confirms the IP address assignment
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Q3. Configuration of nfs server
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Configuration of NFS server involves setting up exports, permissions, and client access.
• Install NFS server package (e.g. nfs-kernel-server)

• Edit /etc/exports file to define shared directories and permissions

• Restart NFS server service after making changes (e.g. systemctl restart nfs-server)

• Set up firewall rules to allow NFS traffic if necessary
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