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10+ ScribeMedics Interview Questions and Answers

Updated 21 Jun 2024
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Q1. What are the two health checks when EC2 instance is launched?

Ans.

The two health checks when an EC2 instance is launched are System Status Checks and Instance Status Checks.

  • System Status Checks ensure that the underlying host system is healthy and reachable.

  • Instance Status Checks ensure that the instance is running properly and can be accessed.

  • Examples: System Status Checks may include checking network connectivity, while Instance Status Checks may include verifying system logs.

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Q2. What is difference between IAM group and IAM roles?

Ans.

IAM groups are collections of IAM users, while IAM roles are permissions that can be assumed by users or services.

  • IAM groups are used to manage permissions for multiple users at once

  • IAM roles are used to delegate permissions to users or services

  • IAM groups can contain multiple users, while IAM roles can only be assumed by one entity at a time

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Q3. Working of Terraform , Packer ,Puppet

Ans.

Terraform, Packer, and Puppet are tools used in DevOps for infrastructure automation and configuration management.

  • Terraform is used for infrastructure as code and automates the provisioning of infrastructure resources.

  • Packer is used for creating machine images for multiple platforms from a single source configuration.

  • Puppet is used for configuration management and automates the deployment and management of software and configurations across multiple servers.

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Q4. Write down the code of scripted and declarative pipeline

Ans.

Scripted and declarative pipelines in Jenkins for DevOps Engineer role

  • Scripted pipeline uses Groovy script syntax

  • Declarative pipeline uses a more structured format with predefined stages

  • Scripted pipeline example: node { stage('Build') { echo 'Building' } }

  • Declarative pipeline example: pipeline { agent any stages { stage('Build') { steps { echo 'Building' } } } }

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Q5. What is VPC and its concepts?

Ans.

VPC stands for Virtual Private Cloud, a virtual network dedicated to your AWS account.

  • VPC allows you to create a logically isolated section of the AWS Cloud where you can launch AWS resources.

  • You can define your own IP address range, create subnets, configure route tables, and network gateways within a VPC.

  • VPC provides security by allowing you to control inbound and outbound traffic to and from your instances.

  • You can connect your VPC to your corporate data center using an IPs...read more

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Q6. Explain the Kubernetes architecture

Ans.

Kubernetes architecture is a container orchestration platform that manages containerized applications across a cluster of nodes.

  • Kubernetes follows a master-slave architecture with a master node and multiple worker nodes.

  • Master node components include API server, scheduler, controller manager, and etcd.

  • Worker node components include kubelet, kube-proxy, and container runtime (e.g. Docker).

  • Nodes communicate with each other using the Kubernetes API.

  • Kubernetes uses Pods as the sm...read more

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Q7. what is oopsin java?

Ans.

OOPs in Java stands for Object-Oriented Programming concepts which include inheritance, encapsulation, polymorphism, and abstraction.

  • OOPs concepts help in organizing and structuring code for better reusability and maintainability.

  • Inheritance allows a class to inherit properties and behavior from another class.

  • Encapsulation hides the internal state of an object and only exposes necessary functionalities.

  • Polymorphism allows objects to be treated as instances of their parent cla...read more

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Q8. what is link list?

Ans.

A linked list is a data structure consisting of a sequence of elements where each element points to the next element in the sequence.

  • Consists of nodes where each node contains data and a reference to the next node

  • Can be singly linked (each node points to the next node) or doubly linked (each node points to both the next and previous nodes)

  • Common operations include insertion, deletion, and traversal

  • Example: Singly linked list: 1 -> 2 -> 3 -> 4

  • Example: Doubly linked list: 1 <->...read more

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Q9. Write the terraform script

Ans.

Writing a terraform script for infrastructure provisioning

  • Define provider and required variables

  • Create resources like instances, networks, and storage

  • Use modules for reusable code

  • Implement variables and outputs for flexibility

  • Leverage terraform state for tracking changes

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Q10. Write the dockerfile

Ans.

A Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image.

  • Start with a base image

  • Use the RUN instruction to execute commands

  • Use the COPY instruction to add files from your Docker client’s current directory

  • Use the CMD instruction to specify the command to run when the container starts

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Interview Process at ScribeMedics

based on 9 interviews
1 Interview rounds
Technical Round
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