Western Digital Software Testing Engineer Interview Questions and Answers for Experienced

Q1. Difference between array and linkedlist
Ans. 
Array is a fixed-size data structure with elements stored in contiguous memory locations, while linked list is a dynamic data structure where elements are stored in nodes with pointers to the next element.
• Array elements are accessed using indices, while linked list elements are accessed by traversing through nodes.

• Arrays have better random access time complexity O(1), while linked lists have better insertion and deleti...read more
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Q2. Difference between thread and process
Ans. 
A process is an instance of a program running on a computer, while a thread is a smaller unit of a process that can execute independently.
• A process has its own memory space, while threads within the same process share memory.

• Processes are heavyweight, requiring separate memory space and resources, while threads are lightweight.

• Processes communicate with each other through inter-process communication mechanisms, while t...read more
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Q1. Remove spaces from string
Ans. 
Remove spaces from a string
• Use the replace() method with a regular expression to remove spaces

• Example: 'hello world' -> 'helloworld'

• Make sure to assign the result back to the original string variable
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Trees, Arrays, DP, Graphs, Leetcode Questions

Q1. Personal Projects
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Q2. System design interview, HP Products
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1 hour - Trees, Array, Hashmap, DP, CP etc

Q1. Project discussion
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