API testing MCQ

Question : What does API stand for?

Application Programming Interface

Application Protocol Integration

Application Program Interface

Advanced Protocol Integration

Correct Answer :Application Programming Interface

Question : Which HTTP method is used to retrieve data from the server?

POST

GET

DELETE

PUT

Correct Answer :GET

Question : What HTTP status code indicates a successful API request?

200

400

500

201

Correct Answer :200

Question : Which type of API does not require constant internet connectivity?

SOAP API

RESTful API

GraphQL API

WebSocket API

Correct Answer :SOAP API

Question : In API testing, what is the purpose of a ''mock server''?

To simulate the behavior of an actual server

To secure the API from unauthorized access

To store API documentation

To optimize API performance

Correct Answer :To simulate the behavior of an actual server

Question : Which format is commonly used for data exchange in RESTful APIs?

JSON

XML

HTML

YAML

Correct Answer :JSON

Question : Which authentication method allows sending credentials with each API request?

OAuth

JWT

Basic Authentication

Digest Authentication

Correct Answer :Basic Authentication

Question : What is the role of the ''Authorization'' header in an API request?

To specify the API version

To define the request type (GET, POST, etc.)

To pass authentication credentials

To set the response format (JSON, XML, etc.)

Correct Answer :To pass authentication credentials

Question : Which testing type focuses on the flow of data between different APIs?

Integration testing

Unit testing

Functional testing

Performance testing

Correct Answer :Integration testing

Question : What does CORS stand for in the context of API testing?

Cross-Origin Resource Sharing

Cross-Origin Request Security

Centralized Origin Resource Sharing

Centralized Origin Request Security

Correct Answer :Cross-Origin Resource Sharing

Question : Which tool can be used to capture and inspect API requests and responses?

Postman

Selenium

Jira

Jenkins

Correct Answer :Postman

Question : What is the purpose of load testing in API testing?

To identify security vulnerabilities

To check API documentation accuracy

To assess API performance under varying loads

To verify API functionalities in different environments

Correct Answer :To assess API performance under varying loads

Question : Which HTTP method is used to update data on the server?

GET

DELETE

PUT

POST

Correct Answer :PUT

Question : What does the term ''endpoint'' refer to in API testing?

The data format used for API responses

The URL where API requests are sent

The authentication token for accessing the API

The HTTP status code returned by the API

Correct Answer :The URL where API requests are sent

Question : Which API testing method is used to test the functionality of individual API components?

Black-box testing

White-box testing

Grey-box testing

Alpha testing

Correct Answer :Black-box testing

Question : What is the purpose of API documentation?

To showcase API security measures

To provide a comprehensive list of API consumers

To explain how to use the API and its endpoints

To highlight API performance metrics

Correct Answer :To explain how to use the API and its endpoints

Question : Which testing approach involves running a set of tests repeatedly to find defects?

Agile testing

Ad-hoc testing

Regression testing

Exploratory testing

Correct Answer :Regression testing

Question : Which HTTP status code indicates that the requested resource is not found?

404

200

500

201

Correct Answer :404

Question : What is the purpose of API versioning?

To improve API security

To support backward compatibility

To reduce API response time

To enable API caching

Correct Answer :To support backward compatibility

Question : In API testing, what is the primary focus of security testing?

Validating API functionality

Verifying data integrity

Identifying potential vulnerabilities and threats

Assessing API scalability

Correct Answer :Identifying potential vulnerabilities and threats

Question : Which type of API testing validates the interaction between multiple integrated APIs?

Unit testing

Integration testing

Regression testing

System testing

Correct Answer :Integration testing

Question : Which tool can be used to automate API tests?

JUnit

Cucumber

JIRA

Jenkins

Correct Answer :JUnit

Question : What is the purpose of stress testing in API testing?

To measure API performance under normal conditions

To assess API response time in a controlled environment

To evaluate API behavior under high loads and beyond capacity

To verify API functionalities in different operating systems

Correct Answer :To evaluate API behavior under high loads and beyond capacity

Question : Which type of API testing is performed during the early stages of development?

Regression testing

Alpha testing

Acceptance testing

Unit testing

Correct Answer :Unit testing

Question : What does ''HTTP'' stand for in API testing?

Hypertext Transfer Protocol

Hyperlink Transfer Protocol

Hypertext Transport Protocol

Hyperlink Transport Protocol

Correct Answer :Hypertext Transfer Protocol

Question : What is the primary goal of performance testing in API testing?

To find defects in the API code

To assess the security of the API

To check API functionality against business requirements

To measure API response time and throughput under varying loads

Correct Answer :To measure API response time and throughput under varying loads

Question : Which HTTP status code indicates a server error?

200

400

500

201

Correct Answer :500

Question : What is the purpose of a ''sandbox environment'' in API testing?

To host the API documentation

To simulate the production environment for testing

To restrict access to specific API consumers

To enable load balancing for API requests

Correct Answer :To simulate the production environment for testing

Question : Which testing type focuses on the business requirements and user expectations of an API?

Functional testing

Security testing

Load testing

Usability testing

Correct Answer :Functional testing

Question : What is the purpose of API governance?

To manage API access permissions

To ensure the availability of API endpoints

To define guidelines and standards for API development and usage

To test API performance under varying network conditions

Correct Answer :To define guidelines and standards for API development and usage

Question : Which HTTP method is used to create new resources on the server?

GET

DELETE

PUT

POST

Correct Answer :POST

Question : What is the primary purpose of a ''bearer token'' in API authentication?

To encrypt API requests

To define the API version

To authenticate API consumers

To specify the request type (GET, POST, etc.)

Correct Answer :To authenticate API consumers

Question : Which type of API testing focuses on the API's usability and user experience?

Usability testing

Security testing

Performance testing

Regression testing

Correct Answer :Usability testing

Question : What is the purpose of boundary value analysis in API testing?

To validate API responses

To determine API response time

To identify defects related to input values at the edges of valid ranges

To optimize API request payload size

Correct Answer :To identify defects related to input values at the edges of valid ranges

Question : Which type of API testing verifies the behavior of an API across different browsers and devices?

Cross-browser testing

Performance testing

Security testing

Integration testing

Correct Answer :Cross-browser testing

Question : What is the purpose of a ''rate limit'' in API testing?

To limit the number of API requests per minute/hour/day for a specific consumer

To set the response format for API requests

To define the API version

To specify the request type (GET, POST, etc.)

Correct Answer :To limit the number of API requests per minute/hour/day for a specific consumer

Question : Which tool can be used to generate synthetic data for API testing?

Postman

Swagger

JMeter

Faker

Correct Answer :Faker

Question : What is the purpose of ''negative testing'' in API testing?

To verify the performance of API endpoints

To check the response time of API requests

To test how the API handles invalid input and error conditions

To evaluate the security measures implemented in the API

Correct Answer :To test how the API handles invalid input and error conditions

Question : Which HTTP status code indicates a successful resource creation?

200

201

400

500

Correct Answer :201

Question : What is the purpose of ''latency testing'' in API testing?

To measure API response time

To validate the correctness of API responses

To assess API security vulnerabilities

To verify API functionalities under high loads

Correct Answer :To measure API response time

Question : Which type of API testing focuses on the API's performance, scalability, and responsiveness?

Performance testing

Security testing

Usability testing

Regression testing

Correct Answer :Performance testing

Question : What is the purpose of API contract testing?

To validate API functionality

To ensure consistency between API documentation and implementation

To assess API response time under load

To optimize API request payload size

Correct Answer :To ensure consistency between API documentation and implementation

Question : Which type of API testing is used to validate the correctness of API responses?

Load testing

Performance testing

Functional testing

Usability testing

Correct Answer :Functional testing

Question : What is the purpose of an ''API key'' in API authentication?

To encrypt API requests

To define the API version

To authenticate API consumers

To specify the request type (GET, POST, etc.)

Correct Answer :To authenticate API consumers

Question : Which HTTP status code indicates a client error?

200

400

500

201

Correct Answer :400

Question : What is the primary purpose of ''regression testing'' in API testing?

To validate API functionality

To identify defects in the API code

To assess API security vulnerabilities

To ensure that new code changes do not affect existing functionalities

Correct Answer :To ensure that new code changes do not affect existing functionalities

Question : Which type of API testing is performed to check if the API meets the specified requirements?

Unit testing

Integration testing

System testing

Acceptance testing

Correct Answer :Acceptance testing

Question : What is the purpose of ''data-driven testing'' in API testing?

To validate API responses

To assess the security of the API

To test the API's functionality with multiple sets of input data

To verify the API documentation accuracy

Correct Answer :To test the API's functionality with multiple sets of input data

Question : Which tool can be used to perform load testing on APIs?

Postman

Swagger

JMeter

Cucumber

Correct Answer :JMeter

Question : What is the purpose of ''concurrency testing'' in API testing?

To measure API response time

To assess API security vulnerabilities

To verify API functionalities under varying network conditions

To evaluate the API's behavior when multiple users access it simultaneously

Correct Answer :To evaluate the API's behavior when multiple users access it simultaneously