IBM Senior Software Engineer Interview Questions, Process, and Tips

To restrict URL access in Angular, use Angular Router Guards.

• Angular Router Guards can be used to restrict access to certain routes based on user authentication or authorization.

• There are three types of guards: CanActivate, CanActivateChild, and CanLoad.

• CanActivate is used to prevent access to a route, CanActivateChild is used to prevent access to child routes, and CanLoad is used to prevent lazy-loaded modules from be...read more

Interceptors are functions that can intercept and modify requests or responses in an application. Closures are functions that have access to variables in their outer scope.

• Interceptors can be used for logging, authentication, caching, and more.

• Closures are commonly used in JavaScript to create private variables and functions.

• An example of an interceptor in AngularJS is the $httpInterceptor service.

• An example of a closu...read more

Import and export are used in JavaScript to share code between files and modules.

• Import is used to bring in code from other modules or files.

• Export is used to make code available for use in other modules or files.

• Import and export are commonly used in modern JavaScript development with tools like Webpack and Babel.

• Examples of import and export syntax include: import { functionName } from './module'; and export default

Deployment table is created by designing a database schema with necessary fields to track deployment information.

• Design a database schema with fields like deployment_id, environment, version, date_deployed, deployed_by, etc.

• Use SQL queries to create the deployment table in the database.

• Consider adding indexes on commonly queried fields for performance optimization.

• Implement proper data validation and constraints to ens...read more

Primary keys (pk) are created to uniquely identify each record in a database table.

• PKs can be created using a single column or a combination of columns.

• PKs must be unique and not null.

• PKs can be automatically generated (e.g. using auto-increment) or manually assigned.

• PKs are essential for data integrity and efficient data retrieval.

OAuth is an open standard for access delegation, commonly used for enabling secure authorization between applications.

• Understand OAuth roles: resource owner, client, authorization server, resource server

• OAuth flow involves obtaining authorization grant, exchanging it for access token, and accessing protected resources

• Implement OAuth 2.0 protocol with libraries like OAuth2Client

• Use OAuth scopes to define permissions for