American Express Agile Project Manager Interview Questions and Answers

1 coding question based on DP for 25 minutes and 30 MCQs on Java , OOPS and code snippet questions also some basic questions based on trees like number of leaf nodes in a complete binary tree with n nodes.

Q1. Write code for finding palindrome of a string
Ans. 
Code to find palindrome of a string
• Iterate through the string from both ends and compare characters

• Use two pointers, one starting from the beginning and one from the end

• If characters at both pointers match, continue checking until they meet in the middle

• If all characters match, the string is a palindrome
Answered by AI
Add your answer
Q2. What is dynamic memory allocation in Java
Ans. 
Dynamic memory allocation in Java refers to the process of allocating memory for objects at runtime.
• Dynamic memory allocation allows for objects to be created and destroyed during program execution.

• The 'new' keyword is used to dynamically allocate memory for objects in Java.

• Dynamic memory allocation helps in managing memory efficiently by allocating memory only when needed.

• Example: int[] arr = new int[5]; dynamically a
Answered by AI
Add your answer
Q3. You are designing an e commerce website which database will you choose and what will you use for authentication given that you can't use JWT or even third party like Google authentication
Ans. 
I would choose a relational database like MySQL and implement a custom authentication system using session management.
• Choose a relational database like MySQL for storing user data, product information, and orders.

• Implement a custom authentication system using session management to securely authenticate users without JWT or third-party services.

• Use encryption techniques to store and validate user passwords securely.

• Util...read more
Answered by AI
Add your answer

Aptitude was very basic.

Q1. What is constant?
Ans. 
A constant is a value that does not change during the execution of a program.
• Constants are used to store values that remain the same throughout the program.

• They are declared using the 'const' keyword in many programming languages.

• Examples include mathematical constants like pi (3.14159) or physical constants like the speed of light (299,792,458 m/s).
Answered by AI
Add your answer
Q2. What is object oriented programming?
Ans. 
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
• Objects are instances of classes, which define the structure and behavior of the objects.

• Encapsulation, inheritance, and polymorphism are key principles of object oriented programming.

• Example: Inheritance allows a subclass to inherit attributes and methods from a superclass.
Answered by AI
Add your answer

Q1. Salary Negotiation
Add your answer
Q2. Work culture description
Ans. 
Our work culture is collaborative, innovative, and focused on continuous learning and growth.
• Encourages teamwork and open communication

• Emphasizes creativity and problem-solving

• Provides opportunities for professional development

• Values diversity and inclusion

• Promotes a healthy work-life balance
Answered by AI
Add your answer

Hackathon Test with 2 medium level coding question.

Technical Video Interview- Java concepts mostly related to Java 8, 1 coding program and some db questions were asked.

Q1. Questions related to System Design.
Add your answer

Q1. Questions related to my projects . Some questions related to my current role and responsibilities.
Add your answer

Basic program with stream

Q1. Microservice architecture
Add your answer
Q2. Crud operations
Add your answer

It had 3 questions, the level was medium hardish

Q1. There were 3 rounds of interviews, 2 technical and 1 HR, ln First round I was asked about OOPs, 2 medium level DSA questions, asked to write code on paper and explain the approach. Questions: 1. Given an ...read more
Add your answer

Q1. Put all the zero at the top of the array
Ans. 
Use two-pointer approach to move all zeros to the beginning of the array.
• Initialize two pointers, one at the beginning and one at the end of the array.

• Swap elements at the two pointers if the element at the beginning pointer is zero.

• Move the pointers towards each other until they meet.
Answered by AI
Add your answer

General apti questions

Work-life balance and career progression

Q1. Tell me about yourself
Add your answer
Q2. Which language are you comfortable with and more than 10 questions on that language
Add your answer