KTree Computer Solutions Web Designer Interview Questions and Answers

Reduce image size while maintaining quality by optimizing compression, resizing, and cropping.

• Use image compression tools like TinyPNG or JPEGmini.

• Resize the image to the appropriate dimensions for its intended use.

• Crop unnecessary parts of the image.

• Save the image in the appropriate file format (JPEG for photographs, PNG for graphics with transparency).

Optimizing CSS involves reducing file size, minimizing HTTP requests, and using efficient selectors.

• Minimize use of unnecessary CSS rules

• Combine and minify CSS files

• Use efficient selectors

• Reduce file size by removing comments and whitespace

• Avoid using @import

• Use CSS sprites for images

• Use media queries to load appropriate styles for different devices

jQuery is a popular JavaScript library that simplifies HTML document traversal, event handling, and animation.

• jQuery allows for easier manipulation of HTML elements and event handling.

• It simplifies AJAX calls and animations on a webpage.

• jQuery uses CSS selectors to target elements for manipulation.

• Example: $('button').click(function() { alert('Button clicked!'); });

To upload a document to a server, use a file upload form with appropriate server-side code.

• Create a file upload form in HTML using the element.

• Use server-side code (e.g., PHP, Node.js) to handle the uploaded file.

• Validate the file type and size on the server to ensure security.

• Move the uploaded file to a designated folder on the server.

• Store the file details (e.g., filename, path) in a database if n...read more

MySQL queries are commands used to interact with a MySQL database, allowing data retrieval, manipulation, and management.

• SELECT statement: Used to retrieve data from a database. Example: SELECT * FROM users;

• INSERT statement: Used to add new records. Example: INSERT INTO users (name, age) VALUES ('Alice', 30);

• UPDATE statement: Used to modify existing records. Example: UPDATE users SET age = 31 WHERE name = 'Alice';

• DELET...read more