API Gateways Microservices

API Gateways Interview Question-Answer

By smart_answer13

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API Gateways Interview Question-Answer Part – 2

Q.1 _____ helps in reducing latency during service calls.

       A. Client-side discovery

       B. Circuit Breaker

       C. Server-side discovery

       D. None of the options

Ans : Circuit Breaker

Q.2 The following are API developer/manager lifecycles, except _______.

       A. Develop

       B. Explore

       C. Publish

       D. Manage

Ans : Explore

Q.3 A variation of regular Gateway pattern is ______.

       A. Backend for frontend

       B. Frontend for backend

Ans : Backend for frontend

Q.4 Gateway is capable of exposing a client to different APIs based on the devices.

       A. True

       B. False

Ans : True

Q.5 An API call will be received by the gateway and will be routed to the appropriate microservice.

       A. True

       B. False

Ans : True

Q.6 The communication between the gateway and key management happens through a _____ call.

       A. Thrift

       B. SOAP

       C. HTTP

       D. none of the options

Ans : Thrift

Q.7 DoS attacks are prevented using _______.

       A. Key management

       B. Traffic management

       C. Store

       D. Publisher

Ans : Traffic management

Q.8 API creation and management is done in ______.

       A. API Gateway

       B. API Store

       C. API Publisher

       D. API Creator

Ans : API Publisher

Q.9 _____ is a URL that communicates with the API.

       A. Endpoint

       B. Resource

       C. Both the options

       D. None of the above

Ans : Endpoint

Q.10 The following are all HTTP methods, except ________.

       A. DELETE

       B. UPDATE

       C. PUT

       D. CONNECT


Q.11 Rate limiting based on the HTTP header is possible.

       A. True

       B. False

Ans : True

Q.12 A single service can have multiple endpoints.

       A. True

       B. False

Ans : True

Q.13 Bandwidth is one of the reasons to enforce Rate-Limiting.

       A. True

       B. False

Ans : True

Q.14 Deprecated API can still be used.

       A. True

       B. False

Ans : True

Q.15 _____ is identified using _____.

       A. Resource, Endpoints

       B. Endpoint, Resource

Ans : Resource, Endpoints

Q.16 All requests will be proxied through Gateway using their ______.

       A. Endpoint

       B. Application Name

       C. API Key

       D. None of the options

Ans : Application Name

Q.17 The following are rate-limiting types, except _______.

       A. User Specific Limiting

       B. Bandwith Specific Rate Limit

       C. Server Rate Limiting

       D. Regional Rate Limit

Ans : Bandwith Specific Rate Limit

Q.18 X-API-Version: 2 is _____ type of versioning.

       A. Custom Header

       B. Media type

       C. Domain

       D. Parameter

Ans : Custom Header

Q.19 Which of the following is a type of documentation?

       A. Static

       B. Dynamic

       C. URL

       D. All the options

Ans : URL

Q.20 The following are API life cycles, except ______.

       A. Deprecated

       B. Retired

       C. Prototype

       D. Subscribed

Ans : Subscribed

Q.21 Which of the core modules of Swagger helps in creating Interactive documentation?

       A. Swagger Editor

       B. Swagger UI

       C. Swagger codegen

       D. None of the options

Ans : Swagger UI

Q.22 Swagger UI creates documentation based on API parameters.

       A. True

       B. False

Ans : True

Q.23 It is possible to test an API without subscribing.

       A. True

       B. False

Ans : True

Q.24 API Documentation can be added using ______.

       A. API Store

       B. API Publisher

Ans : API Publisher

Q.25 Monetization is one of the reasons for Rate limiting.

       A. True

       B. False

Ans : True

Q.26 An API proxy can act as an API gateway.

       A. True

       B. False

Ans : True

Q.27 REST architecture treats every content as a _____.

       A. Source

       B. Resource

       C. Assert

       D. Capital

Ans : Resource

Q.28 Who manages the API lifecycle?

       A. Creator

       B. Subscriber

       C. Admin

       D. Publisher

Ans : Admin

Q.29 ______ is a process of storing server response at the client-end.

       A. Catching

       B. Client side discovery

       C. Traffic management

       D. All the options

Ans : All the options

Q.30 The following are Netflix open software services, except __________

       A. Hystrix

       B. Kubernetes

       C. Ribbon

       D. Turbine

Ans : Kubernetes

API Gateways Interview Question-Answer Part – 2



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