Amadeus Product Support Engineer Interview Questions and Answers

Q1. Basic java questions
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Q2. Basic spring questions
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Q1. More Java questions
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Q2. Current project
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Developing a web application for online shopping platform
• Using React for front-end development

• Implementing RESTful APIs with Node.js for back-end

• Utilizing MongoDB for database management
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Q1. Managerial round questions
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Q2. The technologies I worked
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I have experience working with a variety of technologies including Java, Python, SQL, and AWS.
• Java

• Python

• SQL

• AWS
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Q1. Why join sabre.
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Sabre offers exciting opportunities for growth and innovation in the software engineering field.
• Sabre is a global technology company with a strong reputation in the travel industry.

• Opportunity to work on cutting-edge technology and projects.

• Collaborative and diverse work environment.

• Potential for career advancement and skill development.

• Examples: Developing innovative travel solutions, working with a talented team on c
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Q2. Why moving out from current position
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Seeking new challenges and opportunities for growth
• Looking for a new challenge to expand my skills and knowledge

• Interested in working on different projects or technologies

• Seeking better career advancement opportunities

• Want to work in a more collaborative or innovative environment
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Hashing questions like find the most frequency number in hiven array

Q1. Linked list reverse
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Q1. Finding the loop in ll
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Finding the loop in a linked list
• Use two pointers, one slow and one fast, to detect a loop

• If the fast pointer catches up with the slow pointer, there is a loop

• Once a loop is detected, use another pointer to find the start of the loop
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Q1. Project architecture and behaviour
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Very hard both apti and coding question.

Q1. Design ER model.
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ER model is a visual representation of entities and their relationships in a database.
• Identify entities and their attributes

• Define relationships between entities

• Specify primary keys for each entity

• Consider cardinality and constraints

• Use crow's foot notation for relationships
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Q2. Now implement in MySQL.
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Q1. Will you be able to travel?
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Q1. Solve this problem in C
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Array - medium question
DP - Question

Q1. String greedy algo question
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Q2. Project question
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Q1. About Rest service
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Q1. Behaviour question
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Round duration - 60 minutes
Round difficulty - Medium

Timing was fine - It was in the afternoon
Interviewer was friendly and helpful

Q1. 
Find Duplicates in an Array
Given an array ARR of size 'N', where each integer is in the range from 0 to N - 1, identify all elements that appear more than once.
Return the duplicate elements in any orde...read more
Ans. 
Find duplicates in an array of integers within a specified range.
• Iterate through the array and keep track of the count of each element using a hashmap.

• Return elements with count greater than 1 as duplicates.

• Handle edge cases like empty array or no duplicates found.

• Example: For input [0, 3, 1, 2, 3], output should be [3].
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Round duration - 60 minutes
Round difficulty - Medium

- Timing was fine - Afternoon
- Interviewer was friendly

Q1. How would you design a caching library?
Ans. 
Designing a caching library involves considering data storage, retrieval, expiration policies, and cache invalidation strategies.
• Define the caching requirements such as data size, access patterns, and expiration policies.

• Choose a suitable data structure for caching like LRU, LFU, or a simple key-value store.

• Implement cache eviction policies to handle memory constraints and optimize performance.

• Consider thread safety an...read more
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Round duration - 60 minutes
Round difficulty - Medium

- Timing was fine - Afternoon
- Interviewer was friendly

Q1. What is the number of edges in a 10x10 cube?
Ans. 
A 10x10 cube has 600 edges.
• A cube has 12 edges, so a 10x10 cube would have 12 edges on each of its 6 faces.

• 12 edges x 6 faces = 72 edges for the entire cube.

• However, each edge is shared by two faces, so we need to divide by 2 to get the total number of unique edges.

• 72 edges / 2 = 36 unique edges on the outer surface of the cube.

• Since the cube has 10x10x10 = 1000 unit cubes, each with 12 edges, we need to subtract the e...read more
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Q1. To find the kth minimum element from BST
Ans. 
To find the kth minimum element from a Binary Search Tree (BST)
• Perform an in-order traversal of the BST to get elements in sorted order

• Return the kth element from the sorted list

• Time complexity: O(n) where n is the number of nodes in the BST
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Q2. Basic OOPs question like inheritance encapsulation
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Q1. In a BST two numbers are swapped find swapped nos.
Ans. 
To find swapped numbers in a BST, perform inorder traversal and keep track of previous node.
• Perform inorder traversal of the BST

• Keep track of the previous node while traversing

• If at any point, the current node's value is less than the previous node's value, those are the swapped numbers
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Q2. What you did in college projects
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Q1. Puzzles: find the fastest 3 horses in 25 horse race with a race and 5 horses can be run at a time
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Q2. Weakness and strength. how a friend will describe you
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Q1. Data Structures and Theoretical Java and SQL concepts like - views, indexes, DML
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Programs on Sorting and Search Algorithms and Core Java