Helo.ai by VivaConnect Full Stack Developer Interview Questions and Answers

Node.js uses an event-driven, non-blocking I/O model to handle concurrency.

• Node.js uses an event loop to handle multiple requests simultaneously.

• It uses callbacks to handle I/O operations asynchronously.

• It also supports worker threads for CPU-intensive tasks.

• Node.js provides a cluster module to create child processes for load balancing.

• It can handle thousands of concurrent connections efficiently.

Left join returns all records from left table and matching records from right table. Right join returns all records from right table and matching records from left table.

• Left join is used to retrieve all records from the left table and matching records from the right table.

• Right join is used to retrieve all records from the right table and matching records from the left table.

• If there is no match in the right table for...read more

I want to work with you because of your reputation in the industry and the exciting projects you are working on.

• I am impressed by your company's reputation in the industry.

• I am excited about the challenging and innovative projects you are involved in.

• I believe working with your team will provide great learning and growth opportunities.

• Your company's culture and values align with my own.

• I am motivated by the opportunity...read more

I am leaving my current organization to pursue new challenges and opportunities.

• Seeking career growth and advancement

• Looking for a more challenging and stimulating work environment

• Wanting to work with new technologies and expand my skillset

• Desire for better work-life balance

• Company restructuring or changes in management

• Relocation or personal reasons