Microservices Architecture Quiz

Key Advantages of Microservices Architecture

• Microservices architecture allows independent development, deployment, and scaling of services, enhancing flexibility and speed in software development.
• It promotes fault isolation; a failure in one microservice does not impact the entire application, improving reliability and resilience.

Main Difference Between Architectures

• Microservices architecture divides applications into smaller, loosely coupled services, each responsible for specific functions, while monolithic architecture builds applications as a single, indivisible unit.
• In microservices, technologies and programming languages can vary across services, whereas monolithic architecture typically uses a single technology stack.

Purpose of Client-Side User Interface in Monolithic Applications

• The client-side user interface is the front end through which users interact with the application, responsible for presenting data and capturing user input.
• It directly communicates with the back end to fetch and display information, often leading to performance bottlenecks in monolithic designs.

Database in Enterprise Applications Context

• A database acts as the central repository for storing and managing data used across various components of the enterprise application.
• In monolithic applications, a single database is often used, but microservices may implement individual databases per service to increase autonomy.

Serving a Single User Request in Microservices-Based Applications

• A microservices-based application processes a single user request by routing it through multiple services, each handling a specific business logic part.
• It leverages asynchronous communication, where services collaborate and respond independently, often resulting in improved performance and scalability.

Microservice Architecture

• Microservice architecture involves dividing application responsibilities into smaller, focused services.
• Each microservice operates autonomously with loosely coupled dependencies, allowing independent development, testing, and release.
• Services communicate internally to exchange necessary information for results.

Separation of Concerns (SoC)

• SoC is a design principle that separates implementation into distinct layers, each addressing a unique concern.
• In microservices, SoC helps identify business capabilities and cross-cutting concerns for autonomous service design.

Models

• Models define the structure of data exchanged in and out of a microservice.
• Data transformation involves serialization and deserialization processes during communication.
• Within the service layer, models exist as in-memory objects.

SDK Layer

• SDKs can be created for specific programming languages to promote easier API adoption.

API Gateway Layer

• API gateways act as proxies for APIs, enabling functionalities such as security, subscription services, and performance monitoring.
• Features include API key requirements, throttling, and data transformation between formats (e.g., XML to JSON).

Protocol Layer

• This layer specifies the network protocol (e.g., HTTP or TCP) and communication methods (e.g., SOAP/WSDL or ReST) for the microservice.

Service Layer

• The service layer contains the core operations, including business rules, workflows, and calculations required for microservice functionality.
• It interacts with the data access layer for tasks like data persistence and caching.

Data Access Layer

• The data access layer manages interactions with various data storage services, such as caching systems, relational databases, and message queues.

Store

• Refers to data persistence mechanisms, which can include databases, files, etc.

Automation

• Encompasses development lifecycle practices such as continuous integration and continuous delivery for streamlined software updates.