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Middleware in Distributed Systems for Airlines

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Middleware in Distributed Systems for Airlines

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Questions and Answers

What is the main benefit of using service-oriented architecture in large-scale web applications?

To tightly couple systems using RPC
To integrate all data into one database
To enable loosely coupled middleware (correct)
To create a single scheduling system for all airlines

What is the main advantage of decoupling application logic into independent services?

To increase system complexity
To allow services to be triggered or called as needed (correct)
To create a single, monolithic system
To enable real-time data integration

What is a service in the context of service-oriented architecture?

Any application logic packaged in a standard protocol (correct)
A protocol used for machine-to-machine interaction
A software system that provides a user interface
A database that stores flight data

What is a web service in the context of service-oriented architecture?

A specific instance of service-oriented architecture (D) Signup and view all the answers

What is the role of SOAP in service-oriented architecture?

To exchange standard messages facilitating application integration (D) Signup and view all the answers

What is the relationship between a service requester and a service provider in service-oriented architecture?

Proxy-based (A) Signup and view all the answers

What was the original acronym for SOAP?

Simple Object Access Protocol (D) Signup and view all the answers

What is the fundamental nature of a SOAP message?

A one-way transmission between SOAP nodes (C) Signup and view all the answers

What is the current basis of SOAP?

XML messages (C) Signup and view all the answers

What is the role of middleware servers in a Service-oriented Architecture?

To invoke components running inside the application server (D) Signup and view all the answers

How does the search engine interact with the airlines in the given architecture?

Through a middleware server using SOAP (B) Signup and view all the answers

What is a potential issue with the given architecture?

The search engine doesn't know how to communicate with the airlines (A) Signup and view all the answers

What is a key benefit of Service Oriented Architecture (SOA) according to enterprise architects?

Faster response to changing market conditions (C) Signup and view all the answers

What is a characteristic of Service Oriented Architecture (SOA)?

It simplifies interconnection to legacy assets (D) Signup and view all the answers

What is the focus of reuse in Service Oriented Architecture (SOA)?

At the macro level (C) Signup and view all the answers

What is a possible result of implementing Service Oriented Architecture (SOA)?

Faster response to changing market conditions (A) Signup and view all the answers

What is a key concept in Service Oriented Architecture (SOA)?

Service-based architecture (D) Signup and view all the answers

What is the relationship between tiers and services in Service Oriented Architecture (SOA)?

Any interface to a tier could be transformed into a service (D) Signup and view all the answers