Oracle Principal Advanced Support Engineer Interview Questions and Answers

15 MCQ paper online test were taken.

5-10 Oops concepts MCQ, 1-2 onpaper coding test.

Q1. Interview round: Java basics and tricky questions asked. 1-2 coding questions and explanation on it.
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Q2. Diamond problem, how java handle it?
Ans. 
Java uses default methods to handle the diamond problem by allowing interfaces to have method implementations.
• Java allows interfaces to have default methods, which provide a default implementation for a method in case multiple interfaces define the same method.

• If a class implements two interfaces with the same default method, the class must override the method to provide its own implementation.

• Example: interface A { de...read more
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Q3. Threads, multi-threading
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Q4. Check whether string is palindrome or not, explain the corner cases.
Ans. 
Check if a string is a palindrome by comparing characters from start and end.
• Iterate through the string from start and end simultaneously to check if characters match.

• Handle corner cases like empty string, single character string, and strings with spaces or special characters.

• Examples: 'madam' is a palindrome, 'hello' is not a palindrome.
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Q5. Exception, and exception handling
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Q1. Where do see yourself after 5yrs.
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Q2. What are your good and bad qualities.
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Basic aptitude questions including Java SQL HTML and even Logical Reasoning and Reading Comprehension

React coding questions and Javascript coding questions and also HTML5 concepts