Copmuter 9th Chap 3 : Topic 3.3 - Maryam Publications

Computer Chapter 3 : Topic 3.3

JavaScript & HTML

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A student wants a button click to change the heading text displayed on a webpage without reloading the page. Which aspect of HTML can JavaScript modify?

A) Computer hardware settings

B) Browser installation files

C) Text content of an element

D) Internet connection speed

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A web developer uses JavaScript to replace an image with another image when a user moves the mouse over it. Which HTML aspect is being modified?

A) Image source attribute

B) CPU performance

C) Keyboard layout

D) Network protocol

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A webpage hides a paragraph when a user clicks a button and shows it again when clicked a second time. Which HTML aspect is being changed?

A) Browser version

B) Screen resolution

C) Element visibility

D) Storage capacity

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A student creates a script that changes the background color of a webpage based on user selection. What is JavaScript modifying?

A) Processor speed

B) File compression

C) Operating system settings

D) CSS style properties of HTML elements

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A form displays an error message when a required field is left empty. Which HTML aspect is JavaScript most likely changing?

A) Hard disk partition

B) System clock

C) Printer configuration

D) Element content

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A website allows users to enlarge or reduce text size using buttons. Which aspect of HTML is being modified?

A) Browser cache

B) Monitor brightness

C) Font-related style properties

D) Internet bandwidth

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A programmer adds a new list item to an existing HTML list when a user submits data. What capability of JavaScript is being demonstrated?

A) Modifying hardware settings

B) Changing operating systems

C) Installing software automatically

D) Creating new HTML elements dynamically

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A button changes its label from "Login" to "Logout" after successful authentication. Which aspect of HTML is changed?

A) IP address

B) Database structure

C) Button text content

D) Processor architecture

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A student uses JavaScript to disable a submit button until all required fields are completed. Which HTML aspect is modified?

A) Monitor resolution

B) Storage device type

C) Element attribute

D) Network cable length

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A webpage displays additional information only after a user clicks "Read More." Which HTML feature is JavaScript primarily controlling?

A) Element visibility and content display

B) Power supply settings

C) Keyboard response rate

D) Processor temperature

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A developer changes the hyperlink destination of a button based on user selection. Which HTML aspect is being modified?

A) Browser history

B) Screen resolution

C) Internet modem settings

D) Link attribute (href)

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A shopping website updates the number of items displayed in the cart immediately after a product is added. Which aspect of HTML is most likely changed?

A) Processor cache

B) Operating system files

C) System memory size

D) Dynamic text content

13 / 13

A programmer uses JavaScript to add a new paragraph to a webpage after a user presses a button. What does this demonstrate?

A) JavaScript can create and modify HTML structure dynamically.

B) JavaScript can only read HTML elements.

C) JavaScript can replace the operating system.

D) JavaScript can modify computer hardware.

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