Entrata Database Admin Interview Questions and Answers

Find the third largest string in an array of strings.

• Sort the array in descending order.

• Skip the first two elements and return the third element.

TCP (Transmission Control Protocol) and IP (Internet Protocol) are the foundational protocols of the internet.

• TCP is responsible for establishing and maintaining a reliable connection between two devices.

• IP is responsible for routing and addressing packets of data across networks.

• TCP/IP together form the basis of internet communication.

• Example: When you visit a website, TCP ensures the data packets are delivered in the...read more

Polymorphism is the ability of an object to take on many forms. It allows objects of different classes to be treated as the same type.

• Polymorphism is a fundamental concept in object-oriented programming.

• It allows for code reusability and flexibility.

• Polymorphism can be achieved through method overriding and method overloading.

• Example: A parent class Animal can have multiple child classes like Dog, Cat, and Bird. They c...read more

An abstract class is a class that cannot be instantiated and is used as a base for other classes.

• An abstract class can have abstract methods that must be implemented by its subclasses.

• It can also have non-abstract methods that can be inherited by its subclasses.

• An abstract class provides a common interface for its subclasses.

• It is used to achieve abstraction and provide a blueprint for other classes.