REST API Interview Questions and Answers

Ques 16. What is a practical illustration of a REST API?

• Weather apps use public REST APIs to communicate related data and display weather information.
• Airlines use APIs to disclose flight information to ticketing and travel websites for commercial usage.
• APIs are used by public transit providers to publish their data online and make it instantly accessible to mapping and navigation apps.

Ques 17. What are the RESTful web services drawbacks?

• Because the client side does not supply a specific session id for it, RESTful web services are transient and do not keep session simulation responsibility.
• Inherently, REST is unable to enforce the security limitation. However, by putting protocols in place, it inherits them. To improve the security of the REST APIs, SSL/TLS authentication integration must be done with great care.

Ques 18. How are REST APIs kept secure?

Sensitive information such as user id, password, or verification token should not be visible in URIs. REST APIs can be kept secure with the help of security initiatives including such authorization and authorization, API server affirmation, TLs/SSL encryption, rate-limiting for DDoS attacks, and more.

Ques 19. What do REST API "Options" mean?

It is an HTTP protocol used to retrieve the HTTP operations or options that are supported and assist clients in selecting choices in REST APIs. CORS, or Cross-Origin Resource Sharing, employs the REST option approach.

Ques 20. How do you create a representation of resources for RESTful web services?

• Both the client and the server should have no trouble understanding it.
• Regardless of the layout of the format, it should be comprehensive.
• It should take into account how the resources are connected to one another and handle them carefully.