Gartner Digital Product Manager Interview Questions and Answers for Experienced

Program to calculate factorial

• Use a loop to multiply the numbers from 1 to n

• Handle edge cases like 0 and negative numbers

• Use recursion for a more elegant solution

Query to retrieve all customer names starting with A.

• Use the SELECT statement to retrieve customer names.

• Use the LIKE operator with the pattern 'A%' to match names starting with A.

• Specify the table and column name where the customer names are stored.

• Example: SELECT customer_name FROM customers WHERE customer_name LIKE 'A%';

OOP concepts are the fundamental principles of Object-Oriented Programming.

• Abstraction: Hiding implementation details and showing only necessary information.

• Encapsulation: Binding data and functions together in a single unit.

• Inheritance: Acquiring properties and behavior of a parent class by a child class.

• Polymorphism: Ability of an object to take many forms or have multiple behaviors.

• Examples: Java, C++, Python, Ruby,