G2 Technology Solutions Staff Engineer Interview Questions and Answers

Design a system for handling user authentication and authorization in a web application.

• Use OAuth for authentication to allow users to log in using their existing accounts from providers like Google, Facebook, etc.

• Implement role-based access control (RBAC) for authorization to define different levels of access for different users.

• Store user credentials securely using hashing algorithms like bcrypt.

• Use JSON Web Tokens (...read more

Associations/relations in Rails refer to the way different models are connected to each other.

• Rails associations are used to define relationships between different models in a Rails application.

• There are different types of associations in Rails such as belongs_to, has_one, has_many, and has_and_belongs_to_many.

• Associations are defined using ActiveRecord macros in the model files.

• For example, a User model may have many ...read more