Bosch Mern Full Stack Developer Interview Questions, Process, and Tips

Program to count the number of vowels in a string.

• Loop through each character in the string and check if it is a vowel.

• Use a counter to keep track of the number of vowels found.

• Consider both uppercase and lowercase vowels.

Use GridFS to save large files in MongoDB database.

• GridFS is a specification for storing and retrieving large files in MongoDB.

• It divides the file into smaller chunks and stores them as separate documents.

• GridFS provides a way to query and retrieve the file in chunks or as a whole.

• To save a large file, use the GridFS API provided by the MongoDB driver.

• Example: db.fs.files.insert({filename: 'photo.jpg', contentType: 'im

Request, response and next are parameters in Express function for handling HTTP requests and responses.

• Request object represents the HTTP request and contains properties for the request query string, parameters, body, HTTP headers, etc.

• Response object represents the HTTP response that an Express app sends when it receives an HTTP request.

• Next function is a middleware function that passes control to the next middleware ...read more

Microservices are small, independent services that communicate with each other, while monolithic architecture is a single, unified system.

• Microservices are loosely coupled and can be developed and deployed independently

• Monolithic architecture is tightly coupled and requires the entire system to be deployed together

• Microservices allow for better scalability and fault tolerance

• Monolithic architecture is simpler to develo...read more