Question

In the three-tiered approach to accessing content in a database, the last tier for accessing content is called __________.

Answer 1

Answer:

Here is your Answer

Explanation:

A 3-tier architecture is a type of software architecture which is composed of three “tiers” or “layers” of logical computing. They are often used in applications as a specific type of client-server system. 3-tier architectures provide many benefits for production and development environments by modularizing the user interface, business logic, and data storage layers. Doing so gives greater flexibility to development teams by allowing them to update a specific part of an application independently of the other parts. This added flexibility can improve overall time-to-market and decrease development cycle times by giving development teams the ability to replace or upgrade independent tiers without affecting the other parts of the system.

For example, the user interface of a web application could be redeveloped or modernized without affecting the underlying functional business and data access logic underneath. This architectural system is often ideal for embedding and integrating 3rd party software into an existing application. This integration flexibility also makes it ideal for embedding analytics software into pre-existing applications and is often used by embedded analytics vendors for this reason. 3-tier architectures are often used in cloud or on-premises based applications as well as in software-as-a-service (SaaS) applications.

Answer 2

Answer:

3-tier schema is an extension of the 2-tier architecture. 3-tier architecture has following layers

Presentation layer (your PC, Tablet, Mobile, etc.)

Application layer (server)

Database Server

A three-tier architecture is typically composed of a presentation tier, a domain logic tier, and a data storage tier.

This DBMS architecture contains an Application layer between the user and the DBMS, which is responsible for communicating the user's request to the DBMS system and send the response from the DBMS to the user.

The application layer(business logic layer) also processes functional logic, constraint, and rules before passing data to the user or down to the DBMS

Three tier architecture is the most popular DBMS architecture.

The goal of Three-teir architecture is:

To separate the user applications and physical database

Proposed to support DBMS characteristics

Program-data independence

Support of multiple views of the dat

Explanation: