Northcorp Software Backend Developer Interview Questions, Process, and Tips

Database indexing improves query performance by reducing the number of disk I/O operations needed to retrieve data.

• Indexing allows the database to quickly locate specific rows in a table, reducing the need to scan the entire table.

• Indexes can be created on columns frequently used in WHERE clauses or JOIN conditions.

• Examples of indexes include primary keys, unique constraints, and composite indexes.

• Proper indexing can s

GET method is used to request data from a server, while POST method is used to submit data to a server in HTTPS.

• GET requests data from a specified resource, while POST submits data to be processed to a specified resource.

• GET requests can be cached and remain in the browser history, while POST requests are not cached and do not remain in the browser history.

• GET requests have length restrictions on the amount of data tha...read more

GET is used to retrieve data from a server, while POST is used to send data to a server.

• GET requests are used to retrieve data from a specified resource. For example, fetching a list of products from an online store.

• POST requests are used to submit data to be processed by a server. For example, submitting a form with user information to create a new account.

• GET requests are idempotent, meaning they can be repeated mult...read more

REST API in backend development is used to allow communication between different systems over the internet.

• Allows for communication between different systems or services

• Follows a client-server architecture

• Uses standard HTTP methods like GET, POST, PUT, DELETE

• Supports multiple data formats like JSON, XML

• Stateless, meaning each request from a client must contain all the information needed to fulfill the request