Quiz: Performance Optimization & Scaling

Question 1: What is the primary goal of performance optimization in web development?

A. To enhance website speed, responsiveness, and user experience B. To reduce server costs C. To increase the number of advertisements on the website D. To improve a website's design

Question 2: Which metric measures the time it takes for a web page to become fully interactive?

A. Time to First Byte (TTFB) B. First Contentful Paint (FCP) C. Largest Contentful Paint (LCP) D. Total Blocking Time (TBT)

Question 3: What does 'scaling' in web development refer to?

A. Optimizing images for smaller file sizes B. Increasing a website's capacity to handle growing user traffic C. Reducing the number of server requests D. Improving the layout of the website

Question 4: Which of the following is a primary factor in website performance?

A. Website design aesthetics B. Server response time C. The number of fonts used D. Amount of content

Question 5: What is "lazy loading"?

A. Loading all resources at once B. Delaying the website launch C. Loading images and videos only when they appear in the user’s viewport D. Reducing server-side caching

Question 6: What role does caching play in performance optimization?

A. It increases server costs B. It disables content delivery networks (CDNs) C. It eliminates the need for scaling D. It temporarily stores frequently accessed data to reduce load times

Question 7: What is a Content Delivery Network (CDN)?

A. A network that delivers advertisements to users B. A tool for creating website designs C. A system of distributed servers that deliver web content based on a user's geographic location D. A database optimization tool

Question 8: How can image optimization improve performance?

A. By reducing image file sizes without compromising quality B. By increasing image dimensions for clarity C. By adding more image formats to the website D. By removing all images from a page

Question 9: Which type of scaling involves adding more servers to distribute the workload?

A. Vertical scaling B. Horizontal scaling C. Cloud scaling D. Backend scaling

Question 10: Why is minimizing HTTP requests important for performance optimization?

A. It reduces website aesthetics B. It decreases server load and improves page load times C. It improves the user interface D. It increases the number of scripts on a page

Question 11: Which strategy is used to reduce unused JavaScript and CSS?

A. Minification B. Lazy loading C. Compression D. Code splitting

Question 12: What is vertical scaling?

A. Adding additional servers to a network B. Using CDNs to deliver content C. Increasing the resources (CPU, RAM, etc.) of a single server to handle more traffic D. Optimizing images for faster loading

Question 13: How does browser caching improve website performance?

A. By storing frequently used data locally on the user’s browser for faster retrieval B. By increasing server processing power C. By reducing the number of fonts on the website D. By disabling content delivery networks

Question 14: Which metric measures the time it takes for a server to respond to a request?

A. First Input Delay (FID) B. Largest Contentful Paint (LCP) C. Time to First Byte (TTFB) D. Total Blocking Time (TBT)

Question 15: hat is the purpose of load balancing in scaling?

A. To optimize website layout B. To decrease the number of website users C. To enhance the visual appeal of the website D. To distribute incoming traffic across multiple servers to prevent overload