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9. Which is an example of Code on Demand?
Answer
Correct Answer:
JavaScript on a webpage
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10. Which HTTP response code describes a new resource as created successfully?
Answer
Correct Answer:
201
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11. What is the concept that allows an API client to explore an API via links embedded in payloads?
Answer
Correct Answer:
Link relations
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12. Which response header will tell the client that the response is cached for 1 minute ?
Answer
Correct Answer:
Cache-Control: max-age=60
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13. Which HTTP verb is used in a CORS preflight request?
Answer
Correct Answer:
OPTIONS
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14. API testing must be treated as _?
Answer
Correct Answer:
Black box testing
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15. When a user attempts to access a record that is not their own, which HTTP response code is the most appropriate?
Answer
Correct Answer:
401
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16. What is the best approach for requesting JSON instead of XML from an API?
Answer
Correct Answer:
Use the Accept header.
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17. API traffic that is entirely internal to your organization is normally called _?
Answer
Correct Answer:
Internal traffic
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18. Within Oauth, what component validates the user's identity?
Answer
Correct Answer:
Authorization server
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19. Which is the most secure method to transmit an API key?
Answer
Correct Answer:
Authorization header
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20. The textbook approach to api versioning is to use _.
Answer
Correct Answer:
The Accept header
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21. What component hides the distinctions or boundaries between various microservices from end-client applications?
Answer
Correct Answer:
API gateway
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22. Which response header tells the client and intermediaries that the response is not to be cached anywhere?
Answer
Correct Answer:
Cache-Control: no-store
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23. What is Time to First Hello World?
Answer
Correct Answer:
How long it takes for a developer to do something with your API
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24. What is the purpose of an OAuth refresh token?
Answer
Correct Answer:
To retrieve an access token
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25. What should your API documentation describe?
Answer
Correct Answer:
Common use cases
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26. What is OAuth?
Answer
Correct Answer:
An authorization framework for granted delegated access
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27. Which property would you use to include references to other resources in a JSON document?
Answer
Correct Answer:
Resources
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28. When building SDKs, which languages should you support?
Answer
Correct Answer:
The languages that your target users use
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29. What is the purpose of a link relation?
Answer
Correct Answer:
To link two resources together
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30. What is the recommended method and URL pattern for retrieving a specific user?
Answer
Correct Answer:
GET /users/{id}
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31. What metric tracks overall availability for your API?
Answer
Correct Answer:
Uptime
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32. Which content is best to include in your documentation?
Answer
Correct Answer:
Sample code
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33. Which REST constraint allows for the presence of caching, routing, and other systems between the client and server?
Answer
Correct Answer:
Layered System
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34. What is the best way to track SDK and version usage?
Answer
Correct Answer:
Tracking downloads
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35. Which property would you use to include subresources directly into a JSON document?
Answer
Correct Answer:
Subresources
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36. Using OAuth, what scope would you request for write access to the API?
Answer
Correct Answer:
Admin
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37. Which OAuth grant type can support a refresh token?
Answer
Correct Answer:
Authorization Code Grant
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38. What should you add to a Cache-Control response header to specify that a response should not be stored in an intermediary cache?
Answer
Correct Answer:
Private
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39. What additional type of token would you see when using OpenID Connect?
Answer
Correct Answer:
ID token
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40. What OAuth term is used to represent permissions?
Answer
Correct Answer:
Scope
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41. What protection does a JSON Web Token (JWT) offer to mitigate tampering with its contents?
Answer
Correct Answer:
A signature
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42. What component can you use to wrap legacy architectures or protocols into a REST interface for easier consumption and integration?
Answer
Correct Answer:
API proxy
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43. The ability to execute the same API request over and over again without changing the resource's state is an example of _.
Answer
Correct Answer:
Idempotency
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44. What is one benefit that OAuth provides over an API key approach?
Answer
Correct Answer:
A token is scoped to the use case.
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45. If you were to add versioning by using the Accept and Content-Type header, what would be the correct format of the header value?
Answer
Correct Answer:
Application/vnd.myapp.v2+json
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46. What purpose does a User-Agent serve?
Answer
Correct Answer:
It identifies the client application or SDK.
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47. Which REST constraint specifies that there should be no shared context?
Answer
Correct Answer:
Stateless
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48. What is one benefit of GraphQl over REST approaches?
Answer
Correct Answer:
Flexible querying/responses
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49. What is OpenID Connect?
Answer
Correct Answer:
An identify layer on top of OAuth 2.0
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50. Your API resource does no allow deletion, and a client application attempted to delete the resource. What HTTP response code should you return?
Answer
Correct Answer:
405 Method Not Allowed
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51. What is one benefit of server-side caching in APIs?
Answer
Correct Answer:
It reduce load on servers.
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52. Which HTTP verb is normally used to update or create a resource in an API?
Answer
Correct Answer:
POST
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53. What is the modern specification for describing an API?
Answer
Correct Answer:
OpenAPI (Swagger)
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54. Which is a common command-line tool for using or exploring an API?
Answer
Correct Answer:
Curl
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55. What is the underlying goal of all APIs?
Answer
Correct Answer:
To share features and functionality with other system.
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56. APIs commonly use webhooks to _.
Answer
Correct Answer:
Notify other systems of an event
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57. What would you enable to allow a browser on another site to make an AJAX request to your API?
Answer
Correct Answer:
CORS
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58. Which REST constraint specifies that knowledge and understanding obtained from one component of the API should be generally applicable elsewhere in the API?
Answer
Correct Answer:
Uniform Interface
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59. When dealing with JSON web Tokens (JWTs), what is a claim?
Answer
Correct Answer:
Data in the token
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60. Which URL pattern is recommended when working with one resource and a collection of resources?
Answer
Correct Answer:
/companies/{id} and/companies
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61. What type of relationship is defined as one resource existing only if another parent resource exist-for example, pages in a book?
Answer
Correct Answer:
Dependent
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