Technotask Business Solutions Interview Questions and Answers

Vertical scrolling is the best option for e-retail websites.

• Vertical scrolling is more intuitive and easier to use for most users.

• Horizontal scrolling can be confusing and frustrating for users.

• Each product on a different page can lead to slower load times and more clicks for users.

• Infinite scrolling can be a good option for some e-retail websites.

• Consider the type of products being sold and the user experience when deciding on scrolling options.

Factors affecting pricing of products on e-retail website

• Cost of production

• Competitor pricing

• Demand and supply

• Target audience

• Marketing and advertising costs

Questions on DBMS and OOPs concepts

• Normalization is the process of organizing data in a database to reduce redundancy and dependency.

• Different forms of normalization include 1NF, 2NF, 3NF, BCNF, and 4NF.

• Join is used to combine rows from two or more tables based on a related column between them.

• Access modifiers in OOPs are public, private, protected, and default.

• Abstract classes are classes that cannot be instantiated and are used as a base class for other classes.

The question is about reversing a linked list.

• Iterative approach: Use three pointers to reverse the links between nodes.

• Recursive approach: Recursively reverse the rest of the list and then fix the links.

• Example: Given a linked list 1 -> 2 -> 3 -> 4, the reversed list will be 4 -> 3 -> 2 -> 1.

Level order traversal is a tree traversal algorithm that visits nodes level by level.

• Start at the root node and add it to a queue.

• While the queue is not empty, remove the first node from the queue and add its children to the queue.

• Repeat until the queue is empty.

• The order in which nodes are visited is the level order traversal.