General Questions:
- Tell me brief about your self
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Tell me your day to day activities.
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Tell me your roles and responsibilities.
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How many servers in your environment
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How many of your team size
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what is your role means Designation
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how along you are working on devops
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How much rating you wll give On DevOps, AWS
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Which scripting Language you use for automation either shell or python
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How much rationg you will give on scripting
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Which versions using in your environment
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Which ticketing tool you are using in you environment
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which versions you are using in devops
Git:
- what is the difference between git pull and git clone
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what is the difference between git pull and git fetch
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what is staging area in git.
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what is git stash
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what is reset in git
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What is the difference between HEAD and checkout in git
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Have you configured github repository locally
Jenkins:
- How to upload the .json file in jenkins
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How to send the mail when build is unstable or broken
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How to store the jenkins server backup and restore
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How to take .xml files backup
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How to set the jenkins job build numbers
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What we can do with jenkins
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Why we are using jenkins
Ans) We can build, autodeploy, test the projects, send the notification….
- Do we need to install jenkins in nodes
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How you can write and execute the shell script in jenkins
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How to manage the nodes, how to manage the users, how we can create perticular project based authentications in jenkins.
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How I can integrate the LDAP using jenkins
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why we use nodes in jenkins
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How to configure windows agents in jenkins
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How to reduce the build time in jenkins
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I configured one project in jenkins I’m trying to configure anothe project but it’s not getting added how you will trouble shoot.
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What are the artifacts in jenkins
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What are the artifacts in jenkins
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How you will give the customized build numbers in jenkins
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How you will send the notifications wether build is fail or success
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what is the pipe line project in jenkins
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what is the system type of jenkins server like t2 micro t2 medium.
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what is the stages of your jenkins project like pipe line project
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How will you give authentication permissions to the users in jenkins
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I have upgraded from one version to another version in jenkins after upgrading some of my upgraded plugins are not supporting to new version of
Jenkins then what you will do.
- How you will decide no of executors in jenkins
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How to reduce build time in pipeline project
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How set maven deployment path
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How to define no of executors in jenkins
AWS:
- How to increase the root volume size of your ec2 instance.
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How to increase the root volume of your ec2 instance without changing instance ip address
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How to scale instances timings base using autoscaling
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How to configure ELB in AWS
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What is sticky session ELB in AWS
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How will you configure sticky session
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How to upload SSL certificates in ELB
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What is cross balancing in ELB
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How to delete the one year old files in s3 bucket in AWS
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what is Classic ELB
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What is Application ELB
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What is the difference between classic and Application ELB
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How to redirect the https in ELB
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How to deploy or copy the application on autoscaling
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What life cycle in S3
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Have worked on spot instances
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What is cloud formation
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What is CloudFront
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What is public subnet and private subnet in aws
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what are the challenges you faced while migrating servers from physical to cloud
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What is RDS in aws and how will you launch RDS in instance in AWS and how will you connect it.
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What is EC2, S3, ELB, Autoscaling, Cloudforamtion, CloudFront.
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I want to stop 24 hours mysql database instance how you will stop it.
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how to configure ELB health checks
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what is the difference between AMI and Snapshot
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I want to configure ELB with one instance does it work
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which mysql versions are available in RDS
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what is VPC in AWS and what is the use of VPC and how will you create public, private subnets and NAT instances and gateways
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What are the terminologies available in route53
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IAM policies
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what is the mechanism of ELB
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what is the mechanism of Autoscaling group
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How will you provide ec2 instance key to users are you using any protocall for this
35.
Chef:
- How communication happens chef server and workstation
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How communication happens chef server and nodes
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How communication happens chef client or nodes and workstation
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What is the configuration file of chef
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Which cookbook you wrote in chef and how will you write could you explain.
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How to deploy java applications using chef
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I want to update java version suppose from java 1.6 to 1.7 without modifying recipe how will you do that.
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How does chef server knows perticular node this is node for me.
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How will you take backup of nodes using chef
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How will you build chef opscode local server
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Is chef having ssl certificates?
Puppet:
- What is the configuration file of puppet.
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How communication happens puppet server and agents
3.
Docker:
- How you will build the your own docker images
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How to find background process in docker containers
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what is docker swarm & Compose
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Which applications are running in your docker containers
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what is entry poind and command in in docker
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In docker-compose one of my instance is down then how will you troubleshoot
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what is the difference between vm and docker
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Is docker image as iso or is there any else
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How containers share memory by baremetalbox or some where else
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How containers will get volumes
Linux:
- I have 100GB space in my ‘/’ directory I’m trying to create files or directories in ‘/’ directory I’m getting error called you dont have space,
then what could be the reason
Ans) Inode full
- Shift A guy created filesystem and mount it to /tmp, shift B guy trying to create files and directories in /tmp, but he is unable to create files or dir’s
then what could be the reason
Ans) May be filesystem is in read only mode
- what is the difference between useradd and adduser commands in linux
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what is logrotate how will you create logrotate for apache
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what is swap
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how to check swap space
free, free -m
- Is swap space must need while installing linux os
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what is the use of iostat and vmstat commands
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what are the columns and rows in vmstat, iostat, top commands
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what are the run levels in linux
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what is system storage management(ssm)
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how to upgrade rhel6 to 7
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which versions of packages you installed like nginx, apache, httpd..
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what is nginx
Vagrant:
- What is vagrant file
Nagios:
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Which monitoring tool you are using
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Have you configured NagiOS.
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How to configure nagios services
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What are the states of nagios