Applied Materials Senior Software Engineer Interview Questions and Answers

Q1. Invert bits of a number
Ans. 
Invert the bits of a given number
• Use bitwise XOR operator (^) with 1 to flip each bit

• Repeat the process for all bits in the number

• Return the inverted number
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Q2. How do you support backward compatibility whiel designing a system
Ans. 
Backward compatibility can be supported by using versioning, deprecation strategies, and maintaining clear communication with users.
• Use versioning to clearly distinguish between different versions of the system

• Implement deprecation strategies to phase out old features gradually

• Maintain clear communication with users about upcoming changes and provide migration paths

• Consider using compatibility layers or adapters to bri...read more
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Q1. Pointer related questions.
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Q2. Basic puzzles
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Some question on memory management and some puzzles.

Problems related to pointer like in this scenario what should be the output etc.

Q1. Interview Round1: Low Level Design round, basic DS questions
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Q2. Interview Round2: Focussed on how well you can get information from google when you aren’t aware of something. Tested networking concepts.
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Major questions were around problem solving, strings

Q1. Add two linked list
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Q2. Find shortest path in graph
Ans. 
Use Dijkstra's algorithm to find the shortest path in a graph
• Implement Dijkstra's algorithm to find the shortest path between two nodes in a graph

• Maintain a priority queue to keep track of the shortest distance to each node

• Update the shortest distance to each node as you traverse the graph

• Track the path by storing the previous node for each node visited
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Q1. Check tree is BST
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Q2. Check substring palindrome or not
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