8 DevOps Interview Questions And Answers For Freshers

A DevOps interview is an interview for potential employees involved in the software development and delivery lifecycle. This can be anything from developers to system administrators to solution architects. The DevOps movement has been around for some time now. But engineers are still expected to know a lot about the role, especially if they’re applying for one. First, understand that it’s going to be a technical one. You’ll need to know your stuff when it comes to topics like Continuous Integration and Continuous Delivery (CI/CD), containerization (like Docker or Kubernetes), and IaC (infrastructure as code) tools like Ansible. After that, it is must to know the most important DevOps interview questions and answers.

So How Do You Prepare For A DevOps Interview Questions And Answers? 

Let’s Take A Look At The Top 9 DevOps Interview Questions And Answers You’re Likely To Face In This Space:

1. What Is DevOps?

DevOps is a software development method that aims to improve the collaboration between software developers and IT operations professionals. In general, it focuses on communication, collaboration and integration between these two groups. It also encourages the adoption of agile software development practices, such as frequent testing and deployment.

DevOps is not just another job title or role in your organization; it’s an entire culture that promotes communication, collaboration and integration between software developers and information technology (IT) professionals. DevOps aims for the continuous delivery of high-quality applications through rapid feedback cycles with stakeholders involved throughout each step of the process — from design to deployment to testing — rather than having separate teams handle each task separately before handing off a finished product at its completion point.

2. How Does DevOps Benefit Organizations?

In the DevOps culture, your role will be to ensure that software is developed and deployed as quickly and efficiently as possible. This way, you can deliver higher quality products with greater flexibility to meet the changing demands of users.

As a DevOps Engineer, you will work closely with Product Managers, Software Architects and Developers in an agile environment. Under those circumstances where feedback from customers is incorporated into the development process continuously. However, it’s important for you to have knowledge about.

3. What Is The Difference Between CI And CD?

Continuous Integration (CI) is a software development practice where members of a team working on different features check-in their code to the same shared repository several times per day. Each time the code is checked in, it triggers an automated build that creates artefacts and runs tests. If all tests pass, those artifacts are created and deployed to a test environment for further verification by QA engineers and end-users. If any issues are encountered, or bugs are found during this process, they can be resolved before they are deployed into production.

DevOps practitioners use CD tools like Apache Airflow to automate these tasks so that they run as soon as new code is pushed into the repository without manual intervention.

4. What Is An Ansible Playbook?

Ansible Playbooks are a way to describe the steps you want to take to configure a system. They’re written in YAML and use Jinja2 templating language for variable substitution. For example, your playbook could contain a line like:

“{{ ‘hello’ | replace(‘world’) }}”

This would replace any instance of ‘world’ with ‘hello’. You could then use this as your playbook’s common variable name instead of {{hostvars[‘hostname’][‘ansible_eth1_ipv4’]}} every time you need it.

5. How Can You Build A Docker Image Without A Docker File?

There are several ways to build a Docker image without a Dockerfile. It all depends on how you want to do it under those circumstances.

The first way is to use the docker-compose files. This method requires you to create a file named “docker-compose.yml” and specify your image name, ports, and other settings in that file.

The second way is by using the docker build command. Here you will use the exact same syntax as when creating a new file, but this time around, it will be used in building the container instead of writing one from scratch!

The third way is by using the docker run command, which allows users to access remote services without having any knowledge about where they are hosted or what software version they run on their servers/servers!

6. What Are The Major Types Of Infrastructure As Code Tools?

Infrastructure as Code (IaC) uses scripts, programming languages, or a combination of the two to manage and configure computer infrastructure. It can be used to provision, deploy and manage the lifecycle of cloud-based solutions on AWS or Azure. Common examples include Terraform and CloudFormation.

There are several tools that fall under IaC:

• Ansible – A simple IT automation system for configuring servers and deploying applications
• Chef – A DevOps tool is written in Ruby
• Puppet – A configuration management tool written in Ruby
• SaltStack – A Python-based open-source software platform for remote execution, configuration management, cloud control plane, reconciliation/coordination & data orchestration

7. Explain What Blue-Green Deployment Is And How It Works?

Blue-Green deployment is a type of zero downtime deployment strategy in which two identical production environments are kept. The system is deployed to one environment. And then when it has been approved by QA and/or customer acceptance testing (CAT), the second environment is updated with the latest version of the application. Once this process completes successfully, you can safely switch traffic from one environment to another by changing DNS records or other load balancers.

If an issue arises during this process, you can roll back to an earlier version of your application without any impact on users.

8. Explain The Difference Between The Imperative And Declarative IAC Approaches?

The difference between imperative and declarative can be explained as follows:

• The imperative approach is specified by the user in terms of how to configure the infrastructure.
• The declarative approach is specified by the user in terms of what he/she wants his/her infrastructure to look like.

This means that a person who uses an imperative model can write scripts that will automate deployments. But without doubt it requires more time and effort than using declarative models.

The ability to ace your DevOps interview is all about understanding that those asking questions want to know real-world application information, not just theory.

DevOps is a software development methodology that focuses on communication, collaboration, integration and automation. In practice, DevOps seeks to improve the flow of work between software developers (Dev), operations staff members (Ops) and quality assurance specialists (QA).

As an illustration, DevOps is not a tool or technology; it’s an idea in general. And in order to be successful at your job, you need to understand what it means—not just how it works… right?

The following questions will help you demonstrate how well you understand what DevOps really means by asking questions like What are the three key characteristics of a culture that promotes DevOps? Or What are some examples of barriers that can prevent effective collaboration between roles in the development process?

Conclusion

The best way to get prepared for a DevOps interview questions and answers is by practicing. At the same time there are plenty of resources out there that will let you do this. And however, you can enroll DevOps Training in Chennai with Infycle Technologies in Chennai. They offer the most effective DevOps course for IT freshers and professionals at this instant. So if you’re looking to apply these skills at work or just want some more in-depth answers on subjects like Docker containers or Ansible playbooks, then contact Infycle Now!