NextGen Invent Senior Devops Engineer Interview Questions and Answers

Q1. How to call APIs in Python
Ans. 
To call APIs in Python, you can use libraries like requests or urllib.
• Use the requests library to make HTTP requests to APIs

• Send GET, POST, PUT, DELETE requests using requests library

• Parse JSON responses using the json module
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Q2. How to write script to configure Veracode with ADO
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To configure Veracode with ADO, you can write a script that automates the process of setting up the integration.
• Use Veracode API to authenticate and interact with Veracode services

• Create a script that retrieves Veracode API credentials from ADO secure variables

• Automate the process of configuring Veracode settings in ADO pipelines
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20 questions in 15 mins

Q1. Difference between HTTP AND HTTPS
Ans. 
HTTP is unsecured protocol while HTTPS is secured protocol using SSL/TLS encryption.
• HTTP stands for Hypertext Transfer Protocol, while HTTPS stands for Hypertext Transfer Protocol Secure.

• HTTP operates on port 80, while HTTPS operates on port 443.

• HTTPS uses SSL/TLS certificates to encrypt data transmitted over the network, providing a secure connection.

• HTTPS is essential for websites that handle sensitive information li...read more
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Q2. What do you mean by release management
Ans. 
Release management involves planning, scheduling, and controlling the software release process.
• Planning and coordinating the release of software updates

• Ensuring that the release process is smooth and efficient

• Managing dependencies and version control

• Communicating with stakeholders about release timelines and changes

• Automating release processes to improve efficiency
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Q1. Describe CI/CD and Jenkins set up
Ans. 
CI/CD is a software development practice where code changes are automatically built, tested, and deployed.
• Continuous Integration (CI) involves automatically building and testing code changes frequently.

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

• Jenkins is a popular open-source automation server used for CI/CD pipelines.

• Jenkins pipelines are defined using a Jenkinsfile which s...read more
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Q2. Define Kebernetes architecture
Ans. 
Kubernetes is an open-source container orchestration platform for automating deployment, scaling, and management of containerized applications.
• Kubernetes follows a master-slave architecture with a master node controlling 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).

• Kubernet...read more
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Q1. Python programming
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Q2. Aws architecture
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Q3. Terraform scripts
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Q1. Gitlab related Questionnaire ?
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Q2. Terraform related Questionnaire ?
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Q1. Jenkins ci-cd meaning
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Q2. Grep and egrep in linux
Ans. 
grep and egrep are command line tools used for searching text patterns in files in Linux.
• grep is a basic command line tool for searching text patterns in files.

• egrep is an extended version of grep with support for regular expressions.

• grep is case-sensitive by default, use -i flag for case-insensitive search.

• egrep supports extended regular expressions without escaping special characters.

• Example: grep 'pattern' file.txt

• E
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Q3. How to print forth coloumn
Ans. 
Use awk command to print the fourth column of a file
• Use awk command with '{print $4}' to print the fourth column of a file

• Example: awk '{print $4}' file.txt
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Q1. About CI & CD process in jenkins
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Q1. Ingress and how sidecar container works ?
Ans. 
Ingress is a Kubernetes resource that manages external access to services, and a sidecar container is a secondary container that runs alongside the main container in a pod.
• Ingress is a Kubernetes resource that acts as an API gateway for incoming traffic to services within the cluster.

• Ingress controllers are responsible for implementing the rules specified in the Ingress resource.

• Sidecar containers are additional contai...read more
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Q2. How services works in k8s
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Services in k8s are abstractions that define a set of pods and a policy for accessing them.
• Services allow communication between different parts of an application within a Kubernetes cluster.

• They provide a stable endpoint for accessing a set of pods, even if the pods are scaled up or down.

• Services can be of different types such as ClusterIP, NodePort, LoadBalancer, and ExternalName.

• ClusterIP services expose the service ...read more
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