Cloud Computing · Unit 5
Web Services and Data Management
Exam-focused notes for Web Services and Data Management (Cloud Computing, BIT408): what the TU syllabus asks and how it has actually been tested, with 4 solved past questions from this unit.
What this unit covers
- Service definition and concepts
- Service-Oriented Architecture (SOA)
- SOAP based web service model
- REST web services architecture
- Comparison between SOAP and REST
- Web services development using SOAP and REST
- Data and resource management in cloud
Web services development using SOAP and REST
How web services can be developed using SOAP and REST? [5]
Web services are software systems designed to support interoperable machine-to-machine interaction over a network. Two primary architectural approaches for developing web services are SOAP and REST. --- SOAP (Simple Object Access Protocol) is a protocol-bas...
Full solved answer →SOAP based web service model
What is service? Explain the SOAP based web service model? How it differs from RESTful architecture?[10]
A service is a self-contained, reusable software component that performs a specific business function and is accessible over a network. Services are designed to be: - Independent: Can operate autonomously - Loosely coupled: Minimal dependencies on other ser...
Full solved answer →Comparison between SOAP and REST
How do you choose between SOAP and REST web services? Explain. [5]
- SOAP: Heavy protocol with XML envelope structure, WSDL definitions, and extensive headers. Better for complex enterprise operations requiring strict contracts. - REST: Lightweight, uses standard HTTP methods (GET, POST, PUT, DELETE). Choose REST for simpl...
Full solved answer →Data and resource management in cloud
How does data and resources are managed in cloud? Describe SOA and REST as web services.[10]
Cloud computing manages data through the following mechanisms: 1. Data Storage Models - Object Storage: Data stored as objects with metadata and unique identifiers (e.g., Amazon S3) - Block Storage: Data divided into blocks, managed like traditional storage...
Full solved answer →Make Unit 5 stick
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