Comprehensive Android Developer Bootcamp - Creating the NoDoDao - Data Access Object Class

The video tutorial explains the concept of Data Access Objects (DAO) in Android Room, focusing on how they facilitate CRUD operations by associating SQL queries with method calls. It covers creating a DAO interface or abstract class, implementing CRUD operations using annotations, and performing advanced queries. The tutorial highlights the simplicity and efficiency of using Android Room for database interactions.

What is the primary role of a Data Access Object (DAO) in Android Room?

• To handle user interface design

• To manage network requests

• To specify SQL queries and associate them with method calls

• To perform data encryption

Why is it recommended to use an interface or abstract class for DAO?

• To ensure methods are implemented at a class level

• To enhance security features

• To simplify user interface design

• To improve application performance

What is the purpose of appending 'DAO' to a class name in Android Room?

• To mark it as a security module

• To identify it as a Data Access Object

• To signify it is a network handler

• To indicate it is a user interface component

Which annotation is used to define an insert operation in a DAO interface?

• @Query

• @Insert

• @Update

• @Delete

How can you delete all entries from a table using a DAO method?

• By using the @Delete annotation with a specific query

• By using the @Update annotation

• By using the @Query annotation with 'SELECT *'

• By using the @Insert annotation

What is the correct way to update a specific entry in a table using a DAO method?

• Using @Query with a SELECT statement

• Using @Update with a WHERE clause

• Using @Delete with a WHERE clause

• Using @Insert with a WHERE clause

What SQL command is used to retrieve all entries from a table in descending order?

• DELETE FROM table WHERE column = value

• SELECT * FROM table ORDER BY column DESC

• SELECT * FROM table ORDER BY column ASC

• INSERT INTO table VALUES (value)