Web Development

Discuss the relevance of D3;Correct Answer-With big data there is more data than can be presented reasonably using tables D3 provides a range of techniques for visualising data. It facilitates interaction, meaning users can tailor a visualisation for their own needs. It is well suited to use in a browser given its reliance on SVG Explain CSS syntax;Correct Answer- Explain how you would use a CSS counter;Correct Answer- Explain the CSS box model;Correct Answer- Explain the CSS display property;Correct Answer-It can take the values: none block inline inline-block (this makes the elements like inline elements but they can have a width and height) Explain the importance of form validation;Correct Answer-Important to ensure invalid data does not reach the database A form can validate the format of the data but not the correctness of the data Validation can take place on both the client and server end Give an example of creating a bar chart using D3;Correct Answer-where sun is an array of values How are POST messages sent;Correct Answer-using the HTTP headers How can hashing be cracked;Correct Answer-Dictionary attack Brute-force attack Look-up tables Rainbow tables How can we break a website down from a design perspective and why do we do this;Correct Answer-It can be organised into: The model: handles the data and business logic The view: handle user interface application The controller: handle user interface objects and presentation This supports decoupling which reduces dependencies between different components of the system How can you access properties in JS;Correct Answer- How can you assign events to HTML elements;Correct Answer-