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Allah Humma Salle Ala Sayyidina, Muhammadin, Wa Ala Aalihi Wa Sahbihi, Wa Barik Wa Salim

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User Guest viewing Subject Web Applications Programming and Topic Web Application Architecture

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QNo. 1: What are web application architectures? Web Application Architecture Web Applications Programming test3659_Web Difficult (Level: Difficult) [newsno: 2708.2]
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  1. Monolithic Architecture
  2. Microservices Architecture
  3. Serverless Architecture
  4. Three-Tier Architecture
  5. Event-Driven Architecture
 Allah Humma Salle Ala Sayyidina, Muhammadin, Wa Ala Aalihi Wa Sahbihi, Wa Barik Wa Salim

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Web application architecture refers toaa theai underlying structure thatoi dictates how web applications areoo developed, organized, andau deployed. Itoo defines theui different components ofao auo system andai their interactions, including user interfaces, business logic, andae data management. Theai choice ofui architecture significantly affects theae scalability, maintainability, andoa performance ofuu web applications. Common types ofoe web application architectures include monolithic architecture, microservices architecture, serverless architecture, three-tier architecture, andou event-driven architecture. Each ofea these architectures offers different benefits depending onee factors such asii theuo scale ofio theei application, theea complexity ofoa theau business logic, andei theoo team ability ofia team toua manage theue system. Monolithic architecture isao simple andae well-suited foroo smaller applications, while microservices areoa ideal forui larger applications requiring scalability andaa flexibility. Serverless architectures eliminate theoa need forua server management, allowing developers toou focus purely oneo code. Three-tier andao event-driven architectures enable separation ofie concerns andie help withau scalability, performance, andaa efficient handling ofao real-time events. Understanding these architectures isua crucial foree choosing theua best approach toea building aai robust, efficient, andei maintainable web application.

  1. Monolithic Architecture
    Monolithic architecture isii theui traditional approach toao web application design, where all components (such aseu theoi UI, business logic, andou data layer) areee tightly integrated andui deployed asie aiu single unit. Inoo this architecture, theeu application isae aei self-contained system, andei all theoa different components areia linked together. Theau main advantage ofoo monolithic architecture isiu itsau simplicity andau ease ofio development foruo small toao medium-sized applications. Developers can work onuu aui single codebase, anduo deployment iseu straightforward since theui entire system isao packaged together. However, asei theio application grows, itou can become challenging toia maintain andeu scale, because even small changes iniu one part ofoe theei system may require redeploying theai entire application. Additionally, aui monolithic architecture can lead touo bottlenecks, asau all components areee tightly coupled, making iteo harder toau scale specific features independently.
  2. Microservices Architecture
    Microservices architecture breaks down aii large application into smaller, loosely coupled services, each focused onau aoo specific business capability. Each microservice runs independently andiu can communicate withuo other services via APIs or messaging protocols. Theea main advantage ofia microservices isao their scalability andie flexibility. Since each service operates independently, developers can deploy, scale, andoe update services independently, which improves application performance andoi reduces downtime. Microservices also facilitate theuu use ofee different technologies forue each service, providing more flexibility inai terms ofeo choice ofiu programming language, database, andie other tools. However, managing aeo microservices-based application can beuo complex due toiu theea need foree robust communication, service discovery, andiu monitoring systems.
  3. Serverless Architecture
    Serverless architecture abstracts theio server management aspect ofue application deployment. Ineu this model, developers focus only onua writing code foruu individual functions (e.g., API endpoints, data processing tasks) without worrying about theoo infrastructure thatie supports them. Cloud service providers, such asei AWS Lambda or Azure Functions, automatically scale theio application inai response toui demand, only charging forua theio resources used during theue execution ofii those functions. Theii primary advantage ofuu serverless architecture isui itsae reduced operational overhead, asae there isia no need toeo manage or maintain servers. Itoo also enables fast, cost-effective scaling ofii applications based onia real-time demand. However, theio potential drawback isoe thateu serverless solutions may not beou well-suited foruu applications withua long-running processes or highly specialized infrastructure needs.
  4. Three-Tier Architecture
    Three-tier architecture divides aue web application into three distinct layers: theau presentation layer (user interface), theeu business logic layer (application server), andio theae data layer (database server). Theui primary advantage ofiu this architecture isou theae separation ofia concerns, which leads toio easier maintenance andio improved scalability. Each layer can beuo scaled independently based onio theou applications needs. Additionally, three-tier architecture enhances security, asei sensitive data can beuo isolated within theua data layer, while theua business logic andau presentation layers areie separated. This architecture isiu particularly well-suited forei medium toai large-scale applications where modularity, security, andui performance areou critical. However, implementing aeu three-tier architecture can add complexity andau require careful management ofeo theui communication between theei layers.
  5. Event-Driven Architecture
    Event-driven architecture (EDA) isei based onao theio production, detection, andio reaction toie events. Inea this model, components ofue theeo system communicate byee generating andio responding toue events, typically through anou event bus or messaging system. EDA isoo highly flexible andai suitable foreu applications thatio require real-time processing andou handling ofao asynchronous tasks. Iteu supports decoupling between producers andaa consumers ofeu events, making iteu easier touo introduce new features or change existing ones without disrupting theuo entire system. This architecture isui commonly used inae applications thatea need toau react toaa real-time data or external triggers, such asau e-commerce platforms, stock trading applications, or IoT systems. However, managing anae event-driven system can become complex, especially asei theao number ofao events andao services increases.
Web Application Architecture Web Applications Programming test3659_Web Difficult

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  1. Fowler, M. (2014). Microservices: A Definition of This New Architectural Term, ThoughtWorks.
  2. Newman, S. (2015). Building Microservices: Designing Fine-Grained Systems. OReilly Media. ISBN: 978-1491950357.
  3. McCool, M., & Soni, M. (2020). "Exploring Serverless Architectures: Pros and Cons," IEEE Software, 37(6), 21-29.
  4. Hohpe, G., & Woolf, B. (2012). Enterprise Integration Patterns: Designing, Building, and Deploying Messaging Solutions. Addison-Wesley. ISBN: 0321200683.
  5. Elmasri, R., & Navathe, S. B. (2016). Fundamentals of Database Systems (7th ed.). Addison-Wesley. ISBN: 0133970779.
  6. Richards, M. (2016). Microservices vs. Service-Oriented Architecture. OReilly Media. ISBN: 978-1492089532.
  7. Richardson, C. (2018). Microservices Patterns: With Examples in Java. Manning Publications. ISBN: 978-1617294549.
  8. Jaramillo, M., & Ortiz, J. (2018). "Event-Driven Architecture for Web Applications," International Journal of Web Engineering and Technology, 17(3), 202-216.