Preview Questions DevOps | Role Specific Skill

Question 1: You're using Prometheus to monitor your Kubernetes cluster. You want to create an alert when the number of pods in a deployment drops below a certain threshold. How would you do this?

Which action should you take?

Choose only one option

Write a PromQL query to track the number of pods and configure an alert rule in Alertmanager.

Use Kubernetes events to trigger alerts when pods are terminated or fail to start.

Set up a custom script to periodically check the number of pods and send alerts if necessary.

Rely on Kubernetes' built-in health checks to detect pod failures and trigger alerts.

Question 2: You are leading a team that is adopting a DevSecOps approach to integrate security practices into the software development lifecycle. How do you leverage monitoring and observability to enhance security and proactively identify potential threats or vulnerabilities?

Which action should you take?

Choose only one option

Integrate security monitoring tools into your CI/CD pipeline to scan for vulnerabilities and misconfigurations in code and dependencies during the development and deployment process.

Implement runtime security monitoring to detect and alert on suspicious activity or anomalies in your production environment, enabling rapid response to potential threats.

Utilize log analysis and threat intelligence platforms to identify patterns and indicators of compromise, enabling proactive threat detection and mitigation.

Conduct regular security audits and penetration testing to assess the effectiveness of your security monitoring and identify areas for improvement.

Question 3: Your team is adopting IaC, but there's resistance from some members who are comfortable with manual provisioning. How do you facilitate the transition?

Which action should you take?

Choose only one option

Mandate IaC adoption and provide training sessions to upskill the team.

Highlight the benefits of IaC like consistency, reproducibility, and auditability to encourage adoption.

Start with a pilot project using IaC to showcase its advantages and gain buy-in from the team.

Gradually introduce IaC for new projects while allowing existing ones to continue with manual provisioning.

Question 4: You are tasked with improving the performance and efficiency of your organization's cloud infrastructure. You observe that certain workloads are experiencing high latency and resource contention during peak usage periods. How do you address this issue and ensure optimal performance for your applications?

Which action should you take?

Choose only one option

Conduct a thorough performance analysis of the affected workloads, identifying bottlenecks and areas for optimization in the application code, database queries, or network configurations.

Implement auto-scaling and load balancing mechanisms to dynamically adjust resources based on demand and distribute traffic evenly across multiple instances or nodes.

Leverage caching technologies, such as content delivery networks (CDNs) or in-memory caches, to reduce latency and improve response times for frequently accessed data or static assets.

Optimize your cloud infrastructure architecture, considering factors such as instance types, storage options, and network topology, to ensure efficient resource utilization and minimize contention.

Question 5: You are leading a large-scale infrastructure migration project involving thousands of servers and complex application dependencies. How do you ensure a smooth and error-free configuration management process during the migration?

Which action should you take?

Choose only one option

Develop a comprehensive migration plan with detailed configuration mapping and validation procedures.

Automate the configuration migration process using scripts and tools to minimize manual errors and ensure consistency.

Conduct thorough testing and validation in a staging environment before migrating configurations to production.

Establish a robust rollback strategy to quickly revert configuration changes in case of unexpected issues or failures.

Question 6: You're working on a new project and the team is deciding between Terraform and CloudFormation for IaC. You have experience with Terraform, but some team members prefer CloudFormation due to its native AWS integration. What do you do?

Which action should you take?

Choose only one option

Advocate for Terraform, highlighting its advantages and your familiarity with it.

Embrace CloudFormation, recognizing the team's preference and the potential benefits of native AWS integration.

Suggest evaluating both tools with a small proof-of-concept to compare their suitability for the project.

Research other IaC tools to see if there's a better fit for the project's requirements.