Application Consultant Interview Questions and Answers

Kubernetes is a container orchestration platform while Docker is a containerization technology.

• Kubernetes automates deployment, scaling, and management of containerized applications.

• Docker is used to create, deploy, and run applications in containers.

• Kubernetes can manage multiple Docker containers across multiple hosts.

• Docker provides a way to package and distribute applications in a portable and consistent manner.

• Kubernetes and Docker are often used together to create and m...read more

Custom exception, comparator, and Stream API used to sort array. SQL query to find 2nd highest salary.

• Create a custom exception class to handle specific exceptions in the program.

• Implement a comparator to define custom sorting logic for the array.

• Utilize Stream API to efficiently sort the array using the defined comparator.

• Write a SQL query to find the 2nd highest salary from a table of employee salaries.

Microservices design patterns include SAGAS and Orchestrator patterns.

• Microservices are small, independent services that work together to form an application.

• SAGAS pattern is used to manage transactions across multiple microservices.

• Orchestrator pattern is used to coordinate the interactions between microservices.

• SAGAS pattern uses a coordinator to manage the transaction and compensating actions.

• Orchestrator pattern uses a central controller to manage the flow of data between...read more

Distributed transactions in microservices ensure data consistency across multiple services.

• Distributed transactions involve multiple services coordinating to ensure data consistency.

• Two-phase commit protocol is commonly used for distributed transactions.

• Microservices architecture can make distributed transactions more complex.

• Alternative approaches like eventual consistency can be used instead of distributed transactions.

• Consider the trade-offs between consistency and perform...read more