Hotel Airlink Castle Interview Questions and Answers

Q1. Why would you like to join us
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Q2. Why would u like to join us
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Q1. Personal and family background
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Q2. Why u want to change.
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Q3. What your working profile
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Q1. Tell me about packing machine
Ans. 
A packing machine is a device used to pack products into containers or packages.
• Packing machines can be used for various products such as food, pharmaceuticals, and consumer goods.

• They can be automatic or semi-automatic, depending on the level of automation required.

• Packing machines can use different types of packaging materials such as plastic, paper, or metal.

• Examples of packing machines include filling machines, sea
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Q2. Oven profile details
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Q1. Technical knowledge about automation
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Q2. Project experience in machine installation.
Ans. 
I have experience in managing machine installation projects from start to finish.
• Managed installation of new packaging machine at XYZ company

• Coordinated with vendors and contractors to ensure timely delivery and installation

• Ensured compliance with safety regulations and quality standards

• Trained operators on proper use and maintenance of the machine
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Guestimates, sql questions

Sql questions geeks for geeks

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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