Preview Questions DevOps | Role Specific Skill

Question 1: A critical vulnerability is discovered in a core component of your production infrastructure. The vendor has not yet released a patch, but there's a potential workaround available. What is your course of action?

Which action should you take?

Choose only one option

Immediately implement the workaround in production, accepting the potential risks and closely monitoring for any side effects.

Isolate the vulnerable component as much as possible, implementing compensating controls like network segmentation and additional monitoring.

Reach out to the vendor to inquire about the patch release timeline and explore potential mitigation strategies.

Halt all deployments and new feature development until a patch is available, prioritizing stability over agility.

Question 2: You've made a change to a Puppet manifest, but after applying it, you realize it introduced an unintended side effect on a subset of servers. How do you quickly and safely revert the change for those specific servers?

Which action should you take?

Choose only one option

Use Puppet's built-in rollback functionality to revert to the previous configuration on all servers.

Manually undo the change on the affected servers, ensuring consistency with the rest of the environment.

Identify the specific change in the Puppet manifest and create a new manifest to undo it, targeting only the affected servers.

Temporarily exclude the affected servers from Puppet runs until a fix is implemented.

Question 3: You are leading a team that is responsible for managing a complex and rapidly evolving cloud infrastructure. How do you stay ahead of emerging security threats and ensure that your security practices remain effective in this dynamic environment?

Which action should you take?

Choose only one option

Stay informed about the latest security trends, vulnerabilities, and attack vectors through continuous learning and research.

Participate in industry forums, conferences, and communities to exchange knowledge and best practices with other security professionals.

Conduct regular threat modeling exercises to identify and assess potential risks to your cloud infrastructure and applications.

Proactively evaluate and adopt new security tools and technologies to enhance your defenses and address emerging threats.

Question 4: You want to ensure that your containerized applications are running the latest security patches and updates. How do you implement an efficient and automated patching process?

Which action should you take?

Choose only one option

Manually update the base images of your containers and rebuild them whenever new security patches are released.

Utilize a vulnerability scanning tool to identify vulnerabilities in your container images and trigger automated rebuilds when necessary.

Configure your container orchestration platform to automatically roll out updated container images with the latest security patches.

Implement a policy-as-code approach to enforce security standards and automate the patching process for your containerized applications.

Question 5: You're using AWS Lambda to run serverless functions. You want to ensure that your functions can handle a sudden increase in invocations without experiencing performance issues. What configuration option would you adjust?

Which action should you take?

Choose only one option

Memory allocated to the Lambda function

Timeout duration for the Lambda function

Concurrency limit for the Lambda function

VPC configuration for the Lambda function

Question 6: Your team is migrating a legacy monolithic application to a microservices architecture using containers. You are facing challenges managing the increasing complexity of container orchestration and inter-service communication. What approach do you take to address this?

Which action should you take?

Choose only one option

Implement a service mesh like Istio or Linkerd to manage service discovery, traffic routing, and observability across microservices.

Adopt a container orchestration platform like Kubernetes to automate deployment, scaling, and management of containerized microservices.

Refactor the application further to reduce inter-service dependencies and simplify communication patterns.

Introduce API gateways or message queues to decouple microservices and manage communication flows.