Advantages of Layering in

September 1, 2022

What is the difference between page output caching and application data caching?

What are the advantages of layering in designing an application?

When should you use three-layer models instead of two-layer models?

When should you consider applying design patterns?

Which pattern helps you abstract your database so that the technology can be easily changed?

Q33;

Why are layers useful for increasing cohesion?

Explain what cohesion is, and why we should aim to increase it.

Why is the domain model pattern so intuitive to developers who are familiar with object-oriented programming?

Discuss the relative advantages and disadvantages of the Table Data Gateway pattern in contrast to the Active Record pattern.

How do presentation patterns simplify application design?

Q34;

Why are prototypes more efficient than other techniques for creating classes in JavaScript?

How can an object be instantiated using the concept of object literals?

What does $() shorthand stand for in jQuery?

Write a jQuery selector to get all the

that contain the word “hello.”

jQuery extends the CSS syntax for selectors. Explain what that means.

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