JDBC Architecture and Communication

MesmerizingModernism avatar
MesmerizingModernism
·
·
Download

Start Quiz

Study Flashcards

30 Questions

What is a characteristic of drivers in databases?

They are database specific

What type of driver permits modern data-driven Java applications?

Type 5 driver

What does the JDBC API standardize?

How to connect to a database

What is a limitation of JDBC?

It does not standardize the SQL sent to the database

What is a benefit of using JDBC?

It makes changing to another database a lot easier

What is a characteristic of DataDirect JDBC drivers?

They are compliant with Type 4 architecture

What type of ResultSet object is sensitive to changes to the underlying data?

TYPE_SCROLL_SENSITIVE

What is the purpose of CONCUR_UPDATABLE in a ResultSet object?

To allow the ResultSet to be updated

Which type of ResultSet object can move the cursor to an absolute position or relative to the current cursor position?

TYPE_SCROLL_INSENSITIVE

What does the TYPE_FORWARD_ONLY constant indicate in a ResultSet object?

The cursor can move only forward

What is the purpose of Getter methods in a ResultSet object?

To retrieve column values from the current row

What constant indicates that a ResultSet object may NOT be updated?

CONCUR_READ_ONLY

What is the purpose of the web.xml file in a web application?

To configure various aspects of the web application

What is the purpose of the servlet tag in the web.xml file?

To register a servlet with the container

What is the purpose of the public URL name of a servlet?

To allow the client to access the servlet service

What happens if a client requests a servlet using its registration name or servlet class name?

The container doesn't execute the servlet

What is the purpose of the registration name in a servlet tag?

To define a user-defined name for the servlet

What is the format of the public URL name of a servlet?

A user-defined name preceding with '/'

What is the purpose of the jspInit() method in the JspPage interface?

To perform initialization during the life cycle of the JSP

Which interface extends the Servlet interface?

JspPage

What is the significance of the underscore in the _jspService() method?

It signifies that the method cannot be overridden

What is the purpose of JSP tags in a JSP program?

To define Java code that is executed before sending the output to the browser

What is the purpose of the jspDestroy() method in the JspPage interface?

To perform some clean up operations before the JSP page is destroyed

Which interface provides the _jspService() method?

HttpJspPage

What approach does a Type 3 driver follow for communication?

Three-tier

What is the advantage of the middleware server in a Type 3 driver?

It provides typical middleware services

What is a benefit of the client driver to middleware communication in a Type 3 driver?

It is database-independent

What is a disadvantage of the Type 3 driver?

It requires database-specific coding to be done in the middle tier

What is the significance of a middleware server in a Type 3 driver?

It can provide caching and load balancing

What is a characteristic of a Type 3 driver?

A single driver can handle any database

Understand the architecture and communication approach of JDBC (Java Database Connectivity) in connecting to a database. Learn how JDBC sends API calls to a middle-tier net server and translates them into DBMS-specific network protocols.

Make Your Own Quizzes and Flashcards

Convert your notes into interactive study material.

Get started for free
Use Quizgecko on...
Browser
Browser