Methode Electronics Interview Questions and Answers

To find sibling nodes of a given node in a binary tree, we need to traverse the tree and identify nodes with the same parent.

• Traverse the binary tree starting from the root node

• Check if the current node's left and right children are not null and have the same parent as the given node

• If the conditions are met, add the sibling nodes to the result array

Use locking mechanisms like mutex or semaphores to ensure thread safety and prevent race conditions.

• Implement thread-safe data structures like ConcurrentHashMap in Java or sync.Mutex in Go.

• Use optimistic locking techniques like versioning or compare-and-swap.

• Consider using database transactions for handling concurrent requests.

• Implement rate limiting to prevent overwhelming the server with too many requests.

NoSQL is non-relational, flexible, and scalable but lacks ACID properties. SQL is relational, structured, and ACID compliant but less scalable.

• NoSQL databases like MongoDB are schema-less and can handle unstructured data well.

• SQL databases like MySQL have a fixed schema and are better for complex queries and transactions.

• NoSQL databases are horizontally scalable, making them suitable for big data applications.

• SQL databases follow ACID properties (Atomicity, Consistency, Isola...read more

IaaC stands for Infrastructure as Code, it is the practice of managing and provisioning computing infrastructure through code.

• IaaC allows for automating the process of setting up and managing infrastructure

• Examples include tools like Terraform, Ansible, and CloudFormation

• With IaaC, infrastructure can be defined and managed using code, making it easier to scale and replicate environments

Microservices offer scalability, flexibility, resilience, and technology diversity.

• Scalability: Microservices allow for independent scaling of different components, enabling better resource utilization.

• Flexibility: Each microservice can be developed, deployed, and scaled independently, allowing for faster iteration and updates.

• Resilience: Failure in one microservice does not necessarily affect the entire system, as other services can continue to function.

• Technology diversity:...read more

Designing a REST API involves defining endpoints, methods, request/response formats, and authentication mechanisms.

• Identify resources and their URIs

• Choose appropriate HTTP methods for CRUD operations

• Define request/response formats (JSON, XML)

• Implement authentication and authorization mechanisms

• Use versioning to manage changes over time

High level system design focuses on overall architecture and components, while low level system design delves into specific implementation details.

• High level system design involves defining the overall architecture and components of a system.

• Low level system design focuses on specific implementation details such as algorithms, data structures, and modules.

• High level design is more abstract and conceptual, while low level design is more detailed and concrete.

• Examples: High lev...read more