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Distributed Messaging System
Introduction to Messaging System
Introduction to Kafka
Messaging patterns
Popular Messaging Queue Systems
RabbitMQ vs. Kafka vs. ActiveMQ
Scalability and Performance
Distributed File Systems
What is a Distributed File System?
Architecture of a Distributed File System
Key Components of a DFS
Misc Concepts
Batch Processing vs. Stream Processing
XML vs. JSON
Synchronous vs. Asynchronous Communication
Push vs. Pull Notification Systems
Microservices vs. Serverless Architecture
Message Queues vs. Service Bus
Stateful vs. Stateless Architecture
Event-Driven vs. Polling Architecture
Final Quiz
Quiz
Authentication vs. Authorization
Here's a comparison of authentication and authorization:
| Aspect | Authentication | Authorization |
|---|---|---|
| Definition | The process of verifying who a user is. | The process of verifying what access a user has. |
| Focus | Identity verification. | Access rights and privileges. |
| Example | Entering a username and password. | Checking if a user can access a specific resource, like a file or database. |
| How It Works | Typically involves passwords, biometrics, OTPs, etc. | Involves settings, roles, and permissions that define what resources a user can access. |
| Tools/Methods | Login forms, OTPs, biometric scanners. | Access control lists, role-based access control. |
| Order in Process | Comes first in the security process. | Follows after authentication is successful. |
| Key Concern | Verifying user identity is genuine. | Managing user permissions and access levels. |
| Frequency | Typically occurs once at the beginning of a session. | Can occur multiple times, whenever a user requests access to a resource. |
| Dependence | Independent process, can exist without authorization in some systems. | Requires authentication as a prerequisite. |
What is Authorization?
OAuth vs. JWT for Authentication
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