Multiple choice .net vb

Which is the base class for TypedDataset

  1. DataReader

  2. Dataset

  3. DataAdapter
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

To answer this question, the user should be familiar with the concept of typed datasets and their relationship to other classes in the .NET framework.

The correct answer is:

B. Dataset

Explanation:

In the .NET framework, the base class for typed datasets is the Dataset class. A typed dataset is a dataset that is derived from the Dataset class and includes additional features such as strongly-typed data tables and data columns.

A. DataReader is not the base class for TypedDataset. The DataReader class is used for reading data from a database and does not have a direct relationship to typed datasets.

C. DataAdapter is also not the base class for TypedDataset. The DataAdapter class is used for retrieving and updating data from a database, but it is not the base class for typed datasets.

Therefore, the correct answer is B. Dataset.

AI explanation

In ADO.NET, a strongly-typed DataSet (TypedDataset) is code-generated but still derives from the base System.Data.DataSet class — it just layers typed properties and methods over the same underlying object model. DataReader is a separate, connected/forward-only data access object with no inheritance relationship to DataSet. DataAdapter is the bridge that fills and updates a DataSet from a data source; it is not a superclass of DataSet.

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