Explore topic-wise MCQs in Javascript.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Javascript knowledge and support exam preparation. Choose a topic below to get started.

1.

WHAT_WILL_HAPPEN_AFTER_EXECUTING_THE_SCRIPT??$

A. Execute script
B. Layout positioning of DOM elements
C. Paint DOM elements
D. Build DOM nodes in render tree
Answer» E.
2.

What_would_happen_if_there_were_no_script_tags?$

A. Build DOM nodes in render tree
B. Layout positioning of DOM elements
C. Paint DOM elements
D. Execute script
Answer» B. Layout positioning of DOM elements
3.

Which is the next step after retrieving the content in chunks?

A. Paint DOM elements
B. Parse Content
C. Build DOM nodes in render tree
D. None of the mentioned
Answer» C. Build DOM nodes in render tree
4.

Which of the below does not belong to the Render Engine workflow?

A. Paint DOM elements
B. Parse Content
C. Build DOM nodes in render tree
D. None of the mentioned
Answer» E.
5.

Which of the following gets converted to DOM elements by the rendering engine?

A. Tokens
B. Strings
C. Address
D. All of the mentioned
Answer» B. Strings
6.

Which of the following layer retrieves the content from the network?

A. Transport Layer
B. Application Layer
C. Network Layer
D. Physical Layer
Answer» D. Physical Layer
7.

Which of the following runs the JavaScript code?

A. Just In Time compiler
B. JavaScript Interpreter
C. Both Just In Time compiler and JavaScript Interpreter
D. None of the mentioned
Answer» C. Both Just In Time compiler and JavaScript Interpreter
8.

What does the rendering engine do when it encounters JavaScript?

A. Skips the code
B. Continues painting
C. Switches to Javascript Interpreter
D. None of the mentioned
Answer» D. None of the mentioned
9.

Which of the following handles painting the content on to the screen?

A. Rendering engine
B. JavaScript Interpreter
C. UI Layer
D. Network Layer
Answer» B. JavaScript Interpreter
10.

When does the browser stop rendering the HTML?

A. Inline JavaScript block
B. External JavaScript file
C. Both Inline JavaScript block & External JavaScript file
D. None of the mentioned
Answer» D. None of the mentioned