Which of the following statements is TRUE of service-oriented architecture (SOA)?
A) Work is assigned to Web servers based on their geographical proximity to a user.
B) SOA services are used only between the Web server and the users.
C) The number of database servers and Web servers should be in a fixed ratio.
D) JavaScript is written to invoke services defined by a server application.

Question

Quizplus · Accepted Answer

SOA is an architectural style that uses services to support communication between different software systems. JavaScript is often used to invoke these services defined by a server application, making option D the correct statement. Option A is incorrect because load balancing based on geographical proximity to users is not an inherent feature of SOA. Option B is also incorrect because SOA services can be used between different software systems, not just between the Web server and users. Finally, option C is incorrect because there is no fixed ratio of database servers to Web servers in SOA.

Which of the Following Statements Is TRUE of Service-Oriented Architecture