IBM Team Manager Interview Questions and Answers

Q1. What is concurrent collection
Ans. 
Concurrent collection refers to data structures that can be accessed and modified by multiple threads simultaneously.
• Concurrent collections are designed to be thread-safe, allowing multiple threads to access and modify the collection without causing data corruption.

• Examples of concurrent collections in Java include ConcurrentHashMap, CopyOnWriteArrayList, and ConcurrentLinkedQueue.

• Concurrent collections are commonly us...read more
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Q2. How does copyonwritearrayList works
Ans. 
CopyOnWriteArrayList is a thread-safe variant of ArrayList where all mutative operations (add, set, remove, etc) are implemented by making a fresh copy of the underlying array.
• CopyOnWriteArrayList is suitable for scenarios where traversal operations vastly outnumber mutative operations.

• It is ideal for read-heavy applications where the list is traversed frequently but modifications are rare.

• Example: CopyOnWriteArrayList
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