Comviva Technology Senior Technical Lead Interview Questions and Answers

Microservices offer scalability and flexibility but can increase complexity and require careful management.

• Pros: Scalability, flexibility, independent deployment, technology diversity

• Cons: Increased complexity, communication overhead, data consistency challenges

• Example: Netflix uses microservices to handle millions of requests daily

• Example: Amazon migrated to microservices to improve agility and scalability

Application security is maintained through regular security assessments, code reviews, penetration testing, and implementing security best practices.

• Regular security assessments to identify vulnerabilities

• Code reviews to ensure secure coding practices are followed

• Penetration testing to simulate attacks and identify weaknesses

• Implementing security best practices such as input validation, encryption, and access control

• Us...read more

ELK is a monitoring tool that stands for Elasticsearch, Logstash, and Kibana.

• ELK is a combination of three open-source tools: Elasticsearch, Logstash, and Kibana.

• Elasticsearch is a search and analytics engine that stores and indexes data.

• Logstash is a data processing pipeline that ingests, processes, and sends data to Elasticsearch.

• Kibana is a visualization tool that allows users to interact with data stored in Elastic...read more

For cost management on a cloud, monitor usage, optimize resources, use cost allocation tags, leverage reserved instances, and consider spot instances.

• Monitor usage regularly to identify any inefficiencies or unused resources

• Optimize resources by right-sizing instances and using auto-scaling

• Use cost allocation tags to track spending by project or department

• Leverage reserved instances for predictable workloads to save co...read more