API Gateways MCQs Solution | TCS Fresco Play

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API Gateways MCQs Solution

Course Path: Microservices/GATEWAYS/API Gateways

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Quiz on API Gateway Pattern

1.An API proxy can act as an API gateway.

1. True
2. False

Answer: 1)True

2._____ does not add anything new, it just re-exposes the existing API with some additional capabilities.

1. API Proxy
2. API Gateway

Answer: 1)API Proxy

3.An API call will be received by the gateway and will be routed to the appropriate microservice.

1. True
2. False

Answer: 1)True

4. Ideally, an application should use _____ protocols.

1. HTTP
2. None of the options
3. Websocket
4. Both the options

Answer: 4)Both the options

5.Gateway is capable of exposing a client to different APIs based on the devices.

1. False
2. True

Answer: 2)True

6.A variation of regular Gateway pattern is ______.

1. Backend for frontend
2. Frontend for backend

Answer: 1)Backend for frontend

7._____ helps in reducing latency during service calls.

1. Circuit Breaker
2. Client-side discovery
3. Server-side discovery
4. None of the options

Answer: 1)Circuit Breaker

8.Which service discovery requires an additional router?

1. Server-side discovery
2. Client-side discovery

Answer: 1)Server-side discovery

Quiz on API Gateway - Architecture

1.The communication between the gateway and key management happens through a _____ call.

1. SOAP
2. HTTP
3. none of the options
4. Thrift

Answer: 4)Thrift

2.DoS attacks are prevented using _______.

1. Publisher
2. Traffic management
3. Key management
4. Store

Answer: 2)Traffic management

3.Which one of the following is an API consumer lifecycle?

1. Publish
2. Manage
3. Develop
4. Explore

Answer: 4)Explore

4.To avoid the gateway from making calls to key management frequently, caching can be used.

1. False
2. True

Answer: 2)True

5.The following are API developer/manager lifecycles, except _______.

1. Develop
2. Publish
3. Manage
4. Explore

Answer: 4)Explore

6.API creation and management is done in ______.

1. API Publisher
2. API Store
3. API Creator
4. API Gateway

Answer: 1)API Publisher

7.The following are functions of analytics, except ________

1. Enforce Rate Limiting Policy
2. Alert on unusual activities
3. Statistical Graph
4. Log analyzer

Answer: 1)Enforce Rate Limiting Policy

Quiz on API Gateway - Throttling

1._____ is identified using _____.

1. Resource, Endpoints
2. Endpoint, Resource

Answer: 1)Resource, Endpoints

2.The following are all HTTP methods, except ________.

1. PUT
2. DELETE
3. CONNECT
4. UPDATE

Answer: 4)UPDATE

3.All requests will be proxied through Gateway using their ______.

1. API Key
2. Endpoint
3. None of the options
4. Application Name

Answer: 4)Application Name

4.Rate limiting based on the HTTP header is possible.

1. True
2. False

Answer: 1)True

5._____ is a URL that communicates with the API.

1. Both the options
2. Resource
3. None of the above options
4. Endpoint

Answer: 1)Both the options

6.Bandwidth is one of the reasons to enforce Rate-Limiting.

1. True
2. False

Answer: 1)True

7.A single service can have multiple endpoints.

1. True
2. False

Answer: 1)True

8.The following are rate-limiting types, except _______.

1. Bandwith Specific Rate Limit
2. Regional Rate Limit
3. Server Rate Limiting
4. User Specific Limiting

Answer: 1)Bandwith Specific Rate Limit

Quiz on API Gateway Documentation

1.API Documentation can be added using ______.

1. API Publisher
2. API Store

Answer: 1)API Publisher

2.X-API-Version: 2 is _____ type of versioning.

1. Parameter
2. Media type
3. Custom Header
4. Domain

Answer: 3)Custom Header

3.Which of the core modules of Swagger helps in creating Interactive documentation?

1. Swagger Editor
2. None of the options
3. Swagger UI
4. Swagger codegen

Answer: 3)Swagger UI

4.It is possible to test an API without subscribing.

1. True
2. False

Answer: 1)True

5.The following are API life cycles, except ______.

1. Subscribed
2. Deprecated
3. Prototype
4. Retired

Answer: 1)Subscribed

6.Deprecated API can still be used.

1. False
2. True

Answer: 2)True

7.Swagger UI creates documentation based on API parameters.

1. False
2. True

Answer: 2)True

8.Which of the following is a type of documentation?

1. All the options
2. URL
3. Static
4. Dynamic

Answer: 2)URL

API Gateways - Final Assesment

1.The default burst limit in AWS gateway is _____.

1. 1000
2. 5000
3. 2000
4. 10000

Answer: 2)5000

2.REST architecture treats every content as a _____.

1. Assert
2. Capital
3. Resource
4. Source

Answer: 3)Resource

3.Which one of the following is an API consumer lifecycle?

1. Explore
2. Publish
3. Manage
4. Develop

Answer: 1)Explore

4.The following are API life cycles, except ______.

1. Deprecated
2. Retired
3. Prototype
4. Subscribed

Answer: 4)Subscribed

5.The following are API developer/manager lifecycles, except _______.

1. Manage
2. Explore
3. Develop
4. Publish

Answer: 2)Explore

6.Oauth uses ____ to authenticate the users.

1. tokens
2. index
3. badges
4. cards

Answer: 1)tokens

7.Which of the following parameters is taken by Token APIs to generate tokens?

1. Both the options
2. Grant type
3. Scope
4. None of the options

Answer: 1)Both the options

8.WSO2 store is a ______.

1. Both the options
2. None of the options
3. Web application
4. Key manager

Answer: 3)Web application

9.The tool that is used to develop API documentation is _____.

1. Hystrix
2. Ribbon
3. Turbine
4. Swagger

Answer: 4)Swagger

10.Monetization is one of the reasons for Rate limiting.

1. False
2. True

Answer: 2)True

11.______ is a process of storing server response at the client-end.

1. Traffic management
2. Client side discovery
3. All the options
4. Catching

Answer: 3)All the options

12.Role based authentication is done using _____ setting.

1. Roll
2. Authentication
3. Visibility
4. Access

Answer: 3)Visibility

13.Who manages the API lifecycle?

1. Subscriber
2. Creator
3. Admin X
4. Publisher

Answer: 3)Admin

14._____ is a URL that communicates with the API.

1. None of the options
2. Both the option
3. Resource
4. Endpoint

Answer: 4)Endpoint

15.The following are Netflix open software services, except __________

1. Ribbon
2. Hystrix
3. Turbine
4. Kubernetes

Answer: 4)Kubernetes

16.A single API cannot be subscribed multiple times with many SLA levels.

1. False
2. True

Answer: 1)False

17.What does the HTTP Status Code 401 indicate?

1. BAD REQUEST
2. UNAUTHORIZED
3. INTERNAL SERVER ERROR
4. NOT FOUND

Answer: 2)UNAUTHORIZED

18.WSO2 API publisher can be accessed through the address ________.

1. https://localhost:9442/publisher
2. https://localhost:9443/publisher
3. https://localhost:9445/publisher
4. https://localhost:9444/publisher

Answer: 2)https://localhost:9443/publisher

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