WESCO International QA Engineer Interview Questions and Answers

Q1. A project and questions on project
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Java questions based on string and 2d array

Q1. A project and questions on project
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Q1. What is multithreading in java?
Ans. 
Multithreading in Java allows multiple threads to execute concurrently within a single program.
• Multithreading helps in improving the performance of applications by utilizing multiple CPUs or CPU cores.

• Each thread runs independently and shares the same memory space.

• Java provides built-in support for multithreading through the java.lang.Thread class or implementing the java.lang.Runnable interface.

• Example: Creating a new...read more
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Q2. Detect a cycle in linkedList
Ans. 
Detecting a cycle in a linked list by using two pointers approach.
• Use two pointers approach - slow pointer moves one step at a time, fast pointer moves two steps at a time.

• If there is a cycle, the two pointers will eventually meet at some point.

• Check if the fast pointer reaches the end of the list (null) before meeting the slow pointer to determine if there is a cycle.
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Advance aptitude questions which took 1 hour to solve

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Q1. Asked question related to selenium, java, API
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Q1. What is multithreading in java?
Ans. 
Multithreading in Java allows multiple threads to execute concurrently within a single program.
• Multithreading helps in improving the performance of applications by utilizing multiple CPUs or CPU cores.

• Each thread runs independently and shares the same memory space.

• Java provides built-in support for multithreading through the java.lang.Thread class or implementing the java.lang.Runnable interface.

• Example: Creating a new...read more
Answered by AI
Add your answer
Q2. Detect a cycle in linkedList
Ans. 
Detecting a cycle in a linked list by using two pointers approach.
• Use two pointers approach - slow pointer moves one step at a time, fast pointer moves two steps at a time.

• If there is a cycle, the two pointers will eventually meet at some point.

• Check if the fast pointer reaches the end of the list (null) before meeting the slow pointer to determine if there is a cycle.
Answered by AI
Add your answer

Advance aptitude questions which took 1 hour to solve

Advance Coding questions