Test on Data Exchange and Web APIs

Question 1: HTTP/2 introduces a completely new set of query methods distinct from those used in HTTP/1.1 to optimize data requests.

A. Ano

B. Ne

Explanation: HTTP/2 maintains high-level compatibility with HTTP/1.1, including methods, status codes, and URIs. It does not introduce a completely new set of query methods, but rather optimizes the existing ones for better performance.

Question 2: Which of the following statements accurately describe AJAX, based on the provided study materials?

A. AJAX is a standalone technology used for real-time bidirectional communication.

B. It allows changing content on a webpage without requiring a full page reload.

C. Its components include HTML, CSS, DOM, JavaScript, and XMLhttprequest or Fetch API.

D. A key disadvantage is that it typically results in fewer HTTP requests, which can complicate debugging.

Explanation: AJAX is described as not a standalone technology that allows content to change without reloading the entire page. Its components are listed as HTML and CSS for data and formatting, DOM and JavaScript for display and changes, and XMLhttprequest or Fetch API for data exchange. The study materials state that AJAX leads to 'More http requests', making fewer requests an incorrect statement about its disadvantages.

Question 3: The REST architectural style is defined by constraints, including statelessness and cacheability.

A. Ano

B. Ne

Explanation: REST is described as an architectural style defined by constraints, with stateless and cacheable given as examples of these constraints.

Question 4: Does a REST client primarily interact with resources using unique, non-standard communication protocols, rather than HTTP standard methods?

A. Ano

B. Ne

Explanation: A REST client accesses resources using HTTP standard methods, and REST itself uses HTTP.

Question 5: Which of the following elements are mandatory components of a SOAP message, according to the provided study materials?

A. Envelope

B. Header

C. Body

D. Fault

Explanation: The study materials state that the 'Envelope' is the start and end of the message and is a mandatory element. The 'Body' contains the XML data comprising the message being sent and is also a mandatory element. The 'Header' is an optional element for attributes, and 'Fault' is an optional element for error information.