Here, We see REST APIs LinkedIn Skill Assessment Answer. This assessment test consists 15-20 MCQs to demonstrate your knowledge in your selected skills. MCQs comes from different topics – API Security, Consuming APIs, Designing APIs, Implementing APIs, Measuring APIs.
REST APIs LinkedIn Skill Assessment :-
Q1. What type of relationship is defined as one resource existing only if another parent resource exist-for example, pages in a book?
Q2. Which URL pattern is recommended when working with one resource and a collection of resources?
Q3. When dealing with JSON web Tokens (JWTs), what is a claim?
data in the token✔️
Q4. Which REST contraint specifies that knowledge and understanding obtained from one component of the API should be generally applicable elsewhere in the API?
Q5. What would you enable to allow a browser on another site to make an AJAX request to your API?
Q6. APIs commonly use webhooks to _.
notify other systems of an event✔️
catch error faster
improve error logging
log additional data
Q7. What is the underlying goal of all APIs?
to add new technologies to an organization's infrastructure.
to share features and functionality with other system.✔️
to move infrastructure to the cloud.
to appease the latest digital transformation effort.
Q8. Which is a common command-line tool for using or exploring an API?
Q9. What is the modern specification for describing an API?
Explanation: OpenAPI Specification
Q10. Which HTTP verb is normally used to update or create a resource in an API?
Explanation: HTTP request methods
Q11. What is one benefit of server-side caching in APIs?
Mobile app work better.
It improves uptime.
It offers better security.
It reduce load on servers.✔️
Q12. Your API resource does no allow deletion, and a client application attempted to delete the resource. What HTTP respose code should you return?
400 Bad Request
406 Not Acceptable
405 Method Not Allowed✔️
Explanation: Response Codes
Q13. What is OpenID Connect?
an identify layer on top of OAuth 2.0✔️
the new name for SAML 3.0
a modern replacement for API keys
an SSO competitor for OAuth 2.0
Explanation: What is OpenID Connect?
Q14. What is one benefit of GraphQl over REST approaches?
more stable APIs
compatible with more gateways
more secure by default
Explanation: GraphQL vs. REST
Q15. Which REST constraint specifies that there should be no shared context?
Q16. What purpose does a User-Agent serve?
It identifies the user ID.
It identifies the client application or SDK.✔️
It identifies if the API should expect a user authentication.
It identifies if the API should accept microservice traffic.
Q17. If you were to add versioning by using the Accept and Content-Type header, what would be the correct format of the header value?
Q18. What is one benefit that OAuth provides over an API key approach?
A token is encrypted.
A token is encoded.
A token is scoped to the use case.✔️
A token can be shared between systems.
Q19. The ability to execute the same API request over and over again without changing the resource’s state is an example of _.
a uniform interface
Q20. What component can you use to wrap legacy architectures or protocols into a REST interface for easier consumption and integration?
OAuth authorization server
Q21. What protection does a JSON Web Token (JWT) offer to mitigate tampering with its contents?
transport over SSL
Q22. What OAuth term is used to represent permissions?
Explanation: OAuth Scopes
Q23. What additional type of token would you see when using OpenID Connect?
auth code token
Q24. What should you add to a Cache-Control response header to specify that a response should not be stored in an intermediary cache?
Q25. Which OAuth grant type can support a refresh token?
Authorization Code Grant✔️
Client Credentials Grant
Q26. Using OAuth, what scope would you request for write access to the API?
It varies from API to API.
Q27. Which property would you use to include subresources directly into a JSON document?
Q28. What is the best way to track SDK and version usage?
Q29. Which REST constraint allows for the presence of caching, routing, and other systems between the client and server?
Q30. Which content is best to include in your documentation?
your tech stack
reasoning for your naming schema
your mission statement
Q31. What metric tracks overall availability for your API?
Time to First Hello World
Q32. What is the recommended method and URL pattern for retrieving a specific user?
Q33. What is the purpose of a link relation?
to describe relationships between resources or actions
to describe subresources related to the current one
to link two resources together✔️
to describe a resource and its purpose
Q34. When building SDKs, which languages should you support?
- and you can support
- PHP, Python, and Go
- the languages that your target users use✔️
Q35. Which property would you use to include references to other resources in a JSON document?
Q36. What is OAuth?
- an authorization framework for granted delegated access✔️
- an approach to single sign-on for APIs
- a method for API authentication
- HTTP Basic Authentication 2.0
Q37. What should your API documentation describe?
- common use cases✔️
- your tech stack
Q38. What is the purpose of an OAuth refresh token?
- to share user profile information
- to update an API configuration
- to keep a web session active
- to retrieve an access token✔️
Explanation: Understanding Refresh Tokens
Q39. What is Time to First Hello World?
- how long it takes for a developer to do something with your API✔️
- how long it takes to start a new programming language
- how long it takes to install your SDK
- how long it takes to read your documentation
Q40. Which response header tells the client and intermediaries that the response is not to be cached anywhere?
- Cache-State: none
- Cache-Control: no-cache
- Cache-Control: no-store✔️
Q41. What component hides the distinctions or boundaries between various microservices from end-client applications?
a layered system
Q42. The textbook approach to api versioning is to use _.
the Accept header✔️
Q43. Which is the most secure method to transmit an API key?
Q44. Within Oauth, what component validates the user’s identity?
Q45. API traffic that is entirely internal to your organization is normally called _?
Q46. What is the best approach for requesting JSON instead of XML from an API?
Add .json to the URL.
APIs do not use XML.
Use the Content-Type header.
Use the Accept header.✔️
Q47. When a user attempts to access a record that is not their own, which HTTP response code is the most appropriate?
Explanation: Response Codes
Q48. Which is a benefit of using an API gateway?
HTTP response codes
Q49. API testing must be treated as _?
red team testing
white box testing
blue box testing
black box testing✔️
Q50. Which HTTP verb is used in a CORS preflight request?
Q51. Which response header will tell the client that the response is cached for 1 minute ?
Expires: 1 minute
Expires: 1 January 2020
Explanation: Cache Control Header
Q52. What is the concept that allows an API client to explore an API via links embedded in payloads?
Q53. Which HTTP response code describes a new resource as created successfully?
Explanation: Response Codes
Q54. Which is an example of Code on Demand?
- AWS Lambda
- downloading open-source software
Explanation: Code on Demand
Q55. Which URL pattern should you follow for accessing a subresource attached to a specific resource?
Explanation: Resource Naming
- Layered System
- Uniform Interface
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