Oracle Software Developer II Interview Questions and Answers

Online coding test of 45 mins

Q1. BFS/DFS graph problem
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Q2. Inverted array problem
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Inverted array problem involves reversing the order of elements in an array of strings.
• Iterate through the array from both ends and swap the elements until reaching the middle.

• Use a temporary variable to store the element being swapped.

• Example: Input array ['apple', 'banana', 'cherry'] should be inverted to ['cherry', 'banana', 'apple'].
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Q1. LLD design of order collection service
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LLD design of order collection service involves designing the detailed architecture of the service for collecting orders.
• Define the components of the order collection service such as order processing, validation, storage, and retrieval.

• Design the data flow between these components and how they interact with each other.

• Consider scalability, fault tolerance, and performance optimization in the design.

• Use appropriate desi...read more
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Q2. How two arrays represented as trees are identical trees
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Two arrays represented as trees are identical if they have the same structure and values at each node.
• Check if the arrays have the same length.

• Compare the root nodes of both trees.

• Recursively compare the left and right subtrees of both trees.
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