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Information System - Three Server Tiers
publish date: 2026/06/11 07:37:12.310653 UTC
volume_mutePlease drag and drop the options to sort them
Modern web-based information systems are often implemented as multi-tier client-server architectures. Sort the three server tiers in order from the one closest to the user to the one closest to the data.
Database server - moves data to and from the database and handles transaction management
Web server - handles all user communications with the UI implemented in a web browser
Application server - implements application-specific logic and information storage and retrieval requests
Correct Answer
(1) Web server - handles all user communications with the UI implemented in a web browser
(2) Application server - implements application-specific logic and information storage and retrieval requests
(3) Database server - moves data to and from the database and handles transaction management
Explanation
The three tiers from user to data: (1) Web server - faces the user, manages all communications via the browser-based UI; (2) Application server - sits in the middle, implements business logic and coordinates information retrieval; (3) Database server - manages persistent storage and transactions. Using multiple servers at each tier allows the system to scale to handle hundreds of transactions per minute.
Reference
Software Engineering, Ian Sommerville, 10th edition