IBM Senior Developer Interview Questions and Answers

Q1. Sliding Window find the subarray with sum equal to k
Ans. 
Using sliding window technique to find subarray with sum equal to k.
• Initialize two pointers at the start of the array.

• Move the right pointer to expand the window until the sum is greater than or equal to k.

• Move the left pointer to shrink the window if the sum exceeds k.

• Repeat until the end of the array is reached.

• Example: Input array [1, 4, 20, 3, 10, 5], k=33. Output: [20, 3, 10].
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Q1. In kafka how multiple consumer can access same messages?
Ans. 
Multiple consumers can access the same messages in Kafka by using consumer groups.
• Consumers can be grouped together to share the workload of processing messages.

• Each consumer in a group will receive a subset of the messages from the same topic.

• Consumers in the same group will coordinate to ensure that each message is processed only once.

• Consumer offsets are used to track the progress of each consumer in the group.
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Q2. Any Design patterns if used in the current project
Ans. 
Yes, we have used the Factory Method and Singleton design patterns in the current project.
• Factory Method pattern was used to create objects without specifying the exact class of object that will be created.

• Singleton pattern was used to ensure a class has only one instance and provide a global point of access to it.
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One coding question LC medium

Q1. Questions regarding projects
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Q1. Discussion on offer
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Q1. Java Script and angular/React based questions
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Q1. About my project and the work done. And basic details.
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