WGU D277 ITSW 2131 Front End Web Development Final Assessment (Qns & Ans) 2026

WGU D277 ITSW 2131 Front End Web Development Final Assessment (Qns & Ans) 2026

1. Which of the following is a purpose of using CSS
preprocessors like SASS or LESS?
 - A) To reduce server load
 - B) To enable variables and functions in CSS
 - C) To increase download speed
 - D) To create responsive designs
 ANS: B
 Rationale: CSS preprocessors allow the use of variables,
nesting, mixins, and functions, making CSS more powerful and
maintainable.
2. What is the primary purpose of React's Virtual DOM?
 - A) To improve SEO
 - B) To manipulate DOM elements directly
 - C) To optimize rendering operations
 - D) To allow server-side rendering
 ANS: C
 Rationale: The Virtual DOM enhances performance by
minimizing direct manipulation of the actual DOM, allowing
React to update only the parts that have changed.

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