What considerations should be taken into account when conducting load testing on APIs in a microservices architecture?

  • Analyzing network bandwidth
  • Monitoring CPU usage of the API servers
  • Scaling horizontally to accommodate loads
  • Testing individual API endpoints
When conducting load testing on APIs in a microservices architecture, it's crucial to consider the scalability of the architecture. Horizontal scaling allows you to add more API servers as needed to accommodate loads. It's not just about testing individual endpoints, but also about ensuring the entire system can handle increased traffic. Network bandwidth and CPU usage should also be monitored, but horizontal scaling is a key consideration for handling loads.

Rate limiting is a practice that controls the number of _____ a user can make to an API within a given time frame.

  • Endpoints
  • Headers
  • Requests
  • Responses
Rate limiting is a practice that controls the number of requests a user can make to an API within a given time frame. This helps prevent abuse, protect the server, and ensure fair usage among all users.

What does REST stand for in the context of web APIs?

  • Rapid Execution and Storage Technology
  • Redundant Server Transaction
  • Remote Endpoint Service Transfer
  • Representational State Transfer
In the context of web APIs, REST stands for "Representational State Transfer." It is an architectural style for designing networked applications. REST focuses on the concept of resources and uses standard HTTP methods to perform CRUD (Create, Read, Update, Delete) operations on these resources, making it a popular choice for building web APIs.

How can Cross-Site Request Forgery (CSRF) be mitigated in APIs?

  • Employing anti-phishing measures
  • Implementing input validation
  • Using anti-virus software
  • Using unique, unpredictable tokens
Mitigating Cross-Site Request Forgery (CSRF) attacks in APIs involves using unique, unpredictable tokens. These tokens are included in each request and are validated by the API to ensure that the request originates from an authorized source. This helps prevent malicious requests from being executed on behalf of authenticated users.

In-depth API documentation is crucial for ensuring _____ and ease of use for developers integrating with the API.

  • Security
  • Compatibility
  • Developer Adoption
  • Scalability
In-depth API documentation is crucial for ensuring developer adoption and ease of use for developers integrating with the API. Well-documented APIs provide developers with the information they need to understand, implement, and utilize the API effectively.

Imagine you are developing a real-time application that requires low latency and high efficiency. Which API architectural style would you consider and why?

  • GraphQL
  • REST (Representational State Transfer)
  • SOAP (Simple Object Access Protocol)
  • gRPC (Google Remote Procedure Call)
For a real-time application with a focus on low latency and high efficiency, GraphQL is a suitable choice. GraphQL allows clients to request only the specific data they need, reducing over-fetching and under-fetching, which can lead to improved performance and responsiveness.

Which HTTP methods are commonly associated with RESTful APIs?

  • DELETE and PUT
  • GET and POST
  • HEAD and OPTIONS
  • PATCH and CONNECT
Commonly associated HTTP methods with RESTful APIs are GET and POST. The GET method is used to retrieve information or resources, while the POST method is used to create new resources or send data to the server. These methods, along with others like PUT and DELETE, are essential for implementing the CRUD (Create, Read, Update, Delete) operations in RESTful API design.

SOAP APIs typically use _____ for message format.

  • HTML
  • JSON
  • XML
  • YAML
SOAP APIs usually use XML (Extensible Markup Language) for message format. XML is a structured and self-descriptive format suitable for defining complex data structures in API requests and responses.

Ensuring data privacy and compliance in APIs often involves adhering to standards such as _____.

  • API (Application Programming Interface)
  • GDPR (General Data Protection Regulation)
  • HTTP (Hypertext Transfer Protocol)
  • JSON (JavaScript Object Notation)
Ensuring data privacy and compliance in APIs often involves adhering to standards such as GDPR (General Data Protection Regulation). GDPR is a set of European Union regulations that govern the collection and processing of personal data. It imposes strict requirements on how data is handled, making it essential for APIs dealing with personal information to comply with GDPR to protect user privacy.

How does GraphQL allow clients to specify exactly what data?

  • Clients have no control over data retrieval
  • Clients must request all available data
  • Clients send SQL queries to the server
  • Clients use query language to specify the data they need
GraphQL allows clients to specify exactly what data they need by using a query language. Clients can define their data requirements in the query, requesting only the specific fields and relationships they want, thus minimizing over-fetching and under-fetching of data. This flexibility is one of GraphQL's key features.