Maersk Software Developer Intern Interview Questions and Answers

Q1. What is restful api
Ans. 
RESTful API is an architectural style for designing networked applications
• REST stands for Representational State Transfer

• Uses standard HTTP methods like GET, POST, PUT, DELETE

• Resources are identified by URIs

• Stateless communication between client and server

• Responses are typically in JSON or XML format
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Q2. Bootstarp grid system
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Q1. Questions about kubernetes and dockerfile
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Q1. Questions about your past experience
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Q1. It was in general discussion round
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Q1. General discussion round
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Q1. Introduce yourself.
Ans. 
I am a software developer with 5 years of experience in Java and Python.
• Experienced in Java and Python programming languages

• Worked on various projects involving web development and data analysis

• Familiar with Agile methodologies and version control systems like Git
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Q2. Project related questions.
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Q1. DSA ROUND - DP problem
Ans. 
Dynamic Programming problem involving finding the maximum sum of non-adjacent elements in an array.
• Use dynamic programming to keep track of the maximum sum at each index.

• At each index, the maximum sum is either the current element plus the sum two indices back, or the sum at the previous index.

• Example: For array [2, 4, 6, 2, 5], the maximum sum of non-adjacent elements is 13 (2 + 6 + 5).
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Q2. DSA ROUND - STRING PROBLEM
Ans. 
Find the longest common prefix among an array of strings.
• Iterate through the characters of the first string and compare with other strings

• Return the prefix when characters don't match or reach end of any string

• Example: Input - ['flower', 'flow', 'flight'], Output - 'fl'
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Q1. PROJECT RELATED QUESTIONS
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Q2. DESIGN LRU CACHE
Ans. 
LRU cache is a data structure that stores the most recently used items.
• Use a doubly linked list to keep track of the order of items based on their usage.

• Use a hashmap to quickly access items in the cache.

• When a new item is accessed, move it to the front of the linked list.

• If the cache is full, remove the least recently used item from the end of the linked list.
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Q1. Core Java and SQL-related questions.
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Q1. What is your Previous job experience-related ?
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Basic algorithms testing

Q1. HLD question on chat application
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Round duration - 60 Minutes
Round difficulty - Medium

Q1. 
Left View of a Binary Tree Problem Statement
Given a binary tree, your task is to print the left view of the tree.
Example:
Input:
The input will be in level order form, with node values separated by a...read more
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Q2. 
Middle of a Linked List
You are given the head node of a singly linked list. Your task is to return a pointer pointing to the middle of the linked list.
If there is an odd number of elements, return the ...read more
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