[&] Which of the following best describes 'web application architecture'?
- A framework that defines the interaction between app components
- A system for encrypting web data
- A protocol for managing web browsers
- A method for speeding up web page loading times

[&] What is a key characteristic of microservices architecture?
- It stores all data in a centralized database
- It distributes small independent services for specific functions
- It focuses on using a single programming language
- It bundles all components into a single unit

[&] In the context of web application architecture, what is typically handled at the presentation layer?
- Data storage and management
- User interaction via browsers
- Application server diagnostics
- Business logic processing

[&] How do service components typically communicate in a layered architecture?
- By direct peer-to-peer connections
- Utilizing blockchain technology
- Through a side-by-side arrangement
- Via a hierarchical, top-down manner