LinkedIn Rest API Assessment Answers - LinkedIn Rest API Skills Assessment Quiz, Test Answers 2021

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LinkedIn Rest API Assessment Answers 2021

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LinkedIn Rest API Assessment Answers

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Q1. What type of relationship is defined as one resource existing only if another parent resource exist-for example, pages in a book?

  •  Partial
  •  dependent
  •  associative
  •  linked


Q2. Which URL pattern s recommended when working with one resource and a collection of resources?

  •  /companies/{id} and/company
  •  /company/{id} and/companies
  •  /companies/{id} and/companies
  •  /company/{id} and/company


Q3. When dealing with JSON web Tokens (JWTs), what is a claim?

  •  data in the token
  •  Ownership
  •  a permission
  •  and integer


Q4. Which REST contraint specifies that knowledge and understanding obtained from one component of the API should be generally applicable elsewhere in the API?

  •  Uniform Interface
  •  Client-Server
  •  Stateless
  •  Chacheable

Q5. What would you enable to allow a browser on another site to make an AJAX request to your API?

  •  HTTP
  •  REST
  •  OPTIONS
  •  CORS


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?

  •  bash
  •  curl
  •  ssh
  •  powerShell


Q9. What is the modern specification for describing an API?

  •  OpenAPI (Swagger)
  •  WADL
  •  WSDL
  •  OAuth


Q10. Which HTTP verb is normally used to update or create a resource in an API?

  •  SUBMIT
  •  WRITE
  •  POST
  •  CREATE


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?

  •  409 Conflict
  •  400 Bad Request
  •  406 Not Acceptable
  •  405 Method Not Allowed


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


Q14. What is one benefit of GraphQl over REST approaches?

  •  flexible querying/responses
  •  more stable APIs
  •  compatible with more gateways
  •  more secure by default


Q15. Which REST constraint specifies that there should be no shared context?

  •  Stateless
  •  Client-Server
  •  Uniform Interface
  •  Cacheable


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?

  •  application/json
  •  application/json_version2
  •  text/html
  •  application/vnd.myapp.v2+json


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 _.

  •  stateless architecture
  •  idempotency
  •  a uniform interface
  •  cacheability


Q20. What component can you use to wrap legacy architectures or protocols into a REST interface for easier consumption and integration?

  •  API proxy
  •  API gateway
  •  OpenAPI
  •  OAuth authorization server


Q21. What protection does a JSON Web Token (JWT) offer to mitigate tampering with its contents?

  •  transport over SSL
  •  encrypted payload
  •  a signature
  •  encoded payload


Q22. What OAuth term is used to represent permissions?

  •  token
  •  scope
  •  claim
  •  back channel


Q23. What additional type of token would you see when using OpenID Connect?

  •  ID token
  •  refresh token
  •  access token
  •  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?

  •  no-proxy
  •  client-only
  •  restricted
  •  private 


Q25. Which OAuth grant type can support a refresh token?

  •  Authorization Code Grant
  •  Client Credentials Grant
  •  Implicit Grant
  •  Authentication Grant


Q26. Using OAuth, what scope would you request for write access to the API?

  •  It varies from API to API.
  •  admin
  •  write
  •  read-write


Q27. Which property would you use to include subresources directly into a JSON document?

  •  \_embedded
  •  resources
  •  subresources
  •  \_links


Q28. What is the best way to track SDK and version usage?

  •  tracking downloads
  •  Accept headers
  •  user agents
  •  polling users


Q29. Which REST constraint allows for the presence of caching, routing, and other systems between the client and server?

  •  Layered System
  •  Stateless
  •  Client-Server
  •  Cacheable


Q30. Which content is best to include in your documentation?

  •  your tech stack
  •  reasoning for your naming schema
  •  your mission statement
  •  sample code


Q31. What metric tracks overall availability for your API?

  •  Response Time
  •  Time to First Hello World
  •  TTL
  •  Uptime


Q32. What is the recommended method and URL pattern for retrieving a specific user?

  •  GET /user/{id}
  •  GET /users/{id}
  •  GET /user?id={id}
  •  GET /users?id={id}


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?

  •  Java, Javascript, and .NET
  •  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?

  •  resources
  •  _embedded
  •  subresources
  •  _links


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?

  •  JSON
  •  HTTP
  •  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


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
  •  Expires:-1
  •  Cache-Control: no-cache
  •  Cache-Control: no-store


Q41. What component hides the distinctions or boundaries between various microservices from end-client applications?

  •  API gateway
  •  API logging
  •  a layered system
  •  API proxy


Q42. The textbook approach to api versioning is to use _____.

  •  common knowledge
  •  URLs
  •  no versioning
  •  the Accept header


Q43. Which is the most secure method to transmit an API key?

  •  URL parameter
  •  Authorization header
  •  Base64 encoding
  •  Basic Auth


Q44. Within Oauth, what component validates the user's identity?

  •  client
  •  not specified
  •  authorization server
  •  resource server


Q45. API traffic that is entirely internal to your organisation is normally called ____?

  •  inbound traffic
  •  north-south traffic
  •  internal traffic
  •  east-west traffic


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, whitch HTTP response code is the most appropriate?

  •  403
  •  404
  •  401
  •  405


Q48. Which is a benefit of using an API gateway?

  •  HTTP verbs
  •  JSON payloads
  •  HTTP response codes
  •  rate limiting/throttling


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?

  •  PUT
  •  POST
  •  GET
  •  OPTIONS


Q51. Which response header will tell the client that the response is cached for 1 minute?

  •  Expires: 1 minute
  •  Cache-Control: max-age=60
  •  Expires: 1 January 2020
  •  Cache-Expires: max-age=60


Q52. What is the concept that allows an API client to explore an API via links embedded in payloads?

  •  hypermedia
  •  link relations
  •  parsing
  •  browsing

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