JDBC Quiz Wipro

JDBC Quiz Wipro

University

30 Qs

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JDBC Quiz Wipro

JDBC Quiz Wipro

Assessment

Quiz

Engineering

University

Hard

Created by

Ms.Yatri Davda

Used 1+ times

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30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main reason to wrap DriverManager.getConnection() in a DBUtil class?

Avoid code duplication

Improve query performance

Reduce memory

To use Hibernate

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens if Class.forName("oracle.jdbc.driver.OracleDriver") is missing?

JDBC will use MySQL driver

Program crashes silently

ClassNotFoundException is thrown

Database connection remains open

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which JDBC component is responsible for executing SQL queries?

Driver

Connection

ResultSet

Statement / PreparedStatement

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a DAO pattern, which of these responsibilities is valid for dao.java file?

Business logic

REST API calls

Direct database operations

Model creation

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What would be the correct return type in a DAO method fetching all users from DB?

String[]

List<UserBean>

UserService

void

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of throws ClassNotFoundException in DBUtil?

It enforces use of static block

JDBC always throws it

Ensures driver loading failure is reported

Forces compilation error

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which design pattern is most suitable for writing DBUtil?

Builder

Decorator

Singleton

Observer

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