Workmates Core2 Cloud Solution Cloud Devops Engineer Interview Questions and Answers

Q1. What is your Expectations
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Q2. Qualification and location
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Q1. What is LVM,SWAP?
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Q2. What is difference between Top and Iftop?
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Q3. What is use of mtr ,traceroute?
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Q4. In which you are best in technology??
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Q1. Salary Discussion
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Q1. Design two tire architecture
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Two-tier architecture consists of presentation layer and data layer.
• Presentation layer handles user interface and client-side logic.

• Data layer manages data storage and retrieval.

• Example: Web application with frontend (presentation layer) and backend database (data layer).
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Q1. Architecture question
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Q1. Discuss about project Job Location query In hand salary Timing and bound related talk
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Q1. Questions realted Linux What is aws and its application Detail about project Some basic programming Questions
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Devops tools online test multiple choice questions

Q1. Previous experience and tools that are written in cv
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Q2. Case study type questions
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Q1. Generic psychological type questions Previous experience challanges
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Q2. What if type questions
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It was general aptitude round.

Questions form DSA to check problem solving abilities.

Q1. Second largest number in an array.
Ans. 
Find the second largest number in an array of strings.
• Convert the array of strings to an array of integers for comparison.

• Sort the array in descending order and return the second element.

• Handle cases where there may be duplicates of the largest number.
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Q1. 1)what is kubernetes? 2)what is devops kpi? how to get all pods list? how to delete multiple pods in one command line?
Ans. 
Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications.
• Kubernetes is used to manage containerized applications across multiple hosts.

• It provides features like automatic scaling, self-healing, and rolling updates.

• To get a list of all pods, use the command 'kubectl get pods'.

• To delete multiple pods in one command line, use the com
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Q2. What is nodeport? and ingress? and loadbalancer
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NodePort, Ingress, and LoadBalancer are Kubernetes services used for exposing applications externally.
• NodePort is a service that exposes an application on a static port on each node in the cluster.

• Ingress is a service that exposes HTTP and HTTPS routes from outside the cluster to services within the cluster.

• LoadBalancer is a service that exposes an application externally using a cloud provider's load balancer.

• NodePort ...read more
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Can a 16-year-old child use social media with or without parental control?

It was a written test, 50mcq's related to Cloud and devops.

Round duration - 50 Minutes
Round difficulty - Medium

This round was primarily focused on AWS and its applications like why and how do we use its different features and all.

Q1. What are the different types of EC2 instances based on their costs?
Ans. 
Different types of EC2 instances based on costs include On-Demand Instances, Reserved Instances, and Spot Instances.
• On-Demand Instances: Pay for compute capacity by the hour or second with no long-term commitments.

• Reserved Instances: Reserved capacity for 1 or 3 years, offering significant discounts compared to On-Demand pricing.

• Spot Instances: Bid on spare Amazon EC2 computing capacity, often available at a fraction o
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Q2. What is Auto Scaling in AWS?
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Auto Scaling in AWS is a feature that automatically adjusts the number of compute resources in response to changes in demand.
• Automatically adjusts the number of EC2 instances based on traffic or performance metrics

• Helps maintain application availability and reduce costs by scaling up or down as needed

• Can be configured to scale based on CPU utilization, network traffic, or custom metrics

• Example: Auto Scaling group can b...read more
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Q3. Can you explain Amazon EC2 in brief?
Ans. 
Amazon EC2 is a web service that provides resizable compute capacity in the cloud.
• Amazon EC2 stands for Elastic Compute Cloud

• It allows users to rent virtual servers on which to run their own applications

• Users can choose from a variety of instance types with different CPU, memory, storage, and networking capacities

• EC2 instances can be easily scaled up or down based on demand

• Users only pay for the compute capacity they a
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Q4. What is the use of lifecycle hooks in Auto Scaling?
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Lifecycle hooks in Auto Scaling allow you to perform custom actions before instances launch or terminate.
• Lifecycle hooks can be used to pause the instance launch process to perform custom actions, such as bootstrapping or configuration setup.

• They can also be used to pause the instance termination process to allow for data backup or graceful shutdown.

• By using lifecycle hooks, you can ensure that your instances are prope...read more
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Round duration - 50 Minutes
Round difficulty - Medium

This round focused heavily on the fundamentals of Docker which was followed by some basic concepts from Git.

Q1. What are Docker images?
Ans. 
Docker images are lightweight, standalone, executable packages that contain everything needed to run a piece of software.
• Docker images are built from Dockerfiles, which specify the environment and dependencies needed for the software to run.

• Images can be stored in Docker registries like Docker Hub for easy sharing and distribution.

• Containers are created from Docker images and run as isolated processes on a host machine...read more
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Q2. What command can be run to import a pre-exported Docker image into another Docker host?
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The command to import a pre-exported Docker image into another Docker host is 'docker load'.
• Use the 'docker load' command followed by the file path of the exported image to import it into the new Docker host.

• For example, 'docker load < exported_image.tar' will import the image from the file 'exported_image.tar'.
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Q3. What are Docker Namespaces?
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Docker Namespaces are a feature in Docker that isolates containers from each other and the host system.
• Namespaces provide a way to isolate processes, network, and filesystem for containers.

• Examples of namespaces include PID (process IDs), NET (networking), and MNT (mount points).

• Each container runs in its own set of namespaces, providing a level of isolation and security.
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Q4. What is the difference between CMD and ENTRYPOINT in a Dockerfile?
Ans. 
CMD specifies the default command to run when a container is started, while ENTRYPOINT specifies the executable to run when the container starts.
• CMD can be overridden at runtime by passing arguments to docker run command

• ENTRYPOINT cannot be overridden at runtime, but arguments can be passed to it using docker run command

• CMD is often used for specifying the main application to run in the container

• ENTRYPOINT is commonly ...read more
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Q5. Can you describe the lifecycle of a Docker container?
Ans. 
The lifecycle of a Docker container involves creation, running, pausing, stopping, and deletion.
• Creation: Docker container is created from an image using 'docker run' command.

• Running: Container is started and runs the specified application or service.

• Pausing: Container can be paused using 'docker pause' command to temporarily stop its processes.

• Stopping: Container can be stopped using 'docker stop' command, which halts...read more
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Q6. When should you use Git rebase or Git merge?
Ans. 
Git rebase is used to maintain a linear project history, while Git merge is used to combine branches.
• Use Git rebase when you want to maintain a clean and linear project history.

• Use Git merge when you want to combine branches while preserving the commit history.

• Rebasing is useful for keeping feature branches up to date with the main branch.

• Merging is useful for integrating changes from multiple branches into a single br...read more
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Q7. What do you know about git stash?
Ans. 
Git stash is a command in Git that temporarily shelves changes you've made to your working directory.
• Git stash is used to save changes that are not ready to be committed yet.

• It allows you to switch branches without committing changes.

• You can apply the stashed changes later on using 'git stash apply'.

• You can list all stashed changes with 'git stash list'.

• You can remove stashed changes with 'git stash drop'.
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Round duration - 30 Minutes
Round difficulty - Easy

This was a typical HR round with some standard Behavioral questions.

Q1. Can you tell me something about yourself?
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