Sdet Intern Interview Questions and Answers for Freshers

Find the greatest element in an array of strings.

• Convert the strings to numbers if applicable before comparing.

• Use a loop to iterate through the array and keep track of the greatest element.

• Handle edge cases like empty array or non-numeric strings.

Create a Olympics logo using React.

• Use SVG elements to create the rings of the logo.

• Utilize CSS for styling and positioning of the rings.

• Consider using React components to modularize the design.

• Implement animations for a dynamic effect.

• Ensure responsiveness for different screen sizes.

Border level traversal of a tree involves visiting the nodes at the outermost edges of the tree in a clockwise or counterclockwise direction.

• Start by visiting the nodes in the leftmost column from top to bottom, excluding the leaf nodes.

• Then visit the leaf nodes from left to right at the bottom of the tree.

• Next, visit the nodes in the rightmost column from bottom to top, excluding the leaf nodes.

• Finally, visit the leaf nodes from right to left at the top of the tree.

Implement a function to burn a tree starting from a given node

• Start by creating a function that takes in the root node of the tree and the node to start burning from

• Use a queue to perform a level order traversal of the tree

• Keep track of the nodes that have been burned and the nodes that are yet to be burned

OOP (Object-Oriented Programming) is a programming paradigm based on objects and classes, promoting code reusability and organization.

• Encapsulation: Bundling data and methods that operate on the data within one unit (e.g., a class).

• Inheritance: Mechanism to create a new class using properties and methods of an existing class (e.g., a 'Dog' class inheriting from an 'Animal' class).

• Polymorphism: Ability to present the same interface for different data types (e.g., method overri...read more