MBit Computraining Interview Questions, Process, and Tips

Abstract class can have implementation while interface cannot. A class can implement multiple interfaces but only extend one abstract class.

• Abstract class can have constructors while interface cannot

• Abstract class can have non-abstract methods while interface cannot

• Interfaces are used for multiple inheritance while abstract classes are used for single inheritance

• Abstract classes can have instance variables while interf...read more

Dataset is an in-memory representation of a database while DataReader is a forward-only, read-only stream of data.

• Dataset is disconnected and can be modified while DataReader is connected and read-only

• Dataset can hold multiple tables while DataReader can only hold one table at a time

• Dataset is slower than DataReader for large amounts of data

• Dataset can be used for data manipulation while DataReader is used for read-onl

An index is a data structure that improves the speed of data retrieval operations on a database table.

• Indexes are used to quickly locate data without having to search every row in a database table.

• Types of indexes include clustered, non-clustered, unique, and full-text indexes.

• Clustered indexes determine the physical order of data in a table, while non-clustered indexes create a separate structure to store the index da...read more

Selenium is a tool for automating web browsers. WebDriver is a component of Selenium. Agile is a software development methodology.

• Selenium is used for automating web browsers to test web applications.

• WebDriver is a component of Selenium that provides a programming interface to control the browser.

• Agile is a software development methodology that emphasizes iterative development and collaboration between cross-functional...read more