Implement the layout based on the provided wireframe using only HTML and CSS. 
Explain INNER, LEFT, RIGHT, and FULL OUTER JOINs in SQL. Provide scenarios where each would be used.
What is caching and why is it important in web development? Describe different types of caching and their trade-offs.
Explain the purpose of Webpack in modern web development. What problems does it solve?
Explain what design patterns are in software engineering. Describe a common design pattern like Singleton or Factory.
How does the Event Loop work in JavaScript? Explain its role in asynchronous programming and non-blocking I/O.
What is Big O notation? How is it used to analyze the efficiency of algorithms? Provide examples.
Explain the concepts of synchronous and asynchronous programming. When would you use one over the other?