Oracle Interview Experience (Off-Campus)

When I joined college, I was unaware of this Data Structure and Algorithm, which made my journey to getting an internship way more complicated. From that point, I started doing questions on GFG.

The exam was conducted on Oracle’s online platform. It had 4 sections which were MCQs based on

• Verbal Ability
• Coding Skills
• Core CSE Concepts
• Software Engineering Aptitude

The sections among themselves had various other subsections.
Some of the subsections for Core CSE Concepts were Object-Oriented Programming, DBMS, OS, Time and Space Complexity analysis

Software engineering aptitude had an interesting subsection that was flowchart-based. The Algorithm/task is given and some of the fields are already filled in the flowchart but some fields are empty. we have to select the correct option

The coding skills section was majorly based on, MCQs related to binary trees and AVL trees.

The webcam and timer were enabled only after you begin each subsection, as soon as you finish the subsection the timer and webcam stopped.

Round-1:(Technical – 45 Mins )

• Brief Introduction
• Given a number print whether a number is prime or not (wrote simple Brute force approach)
• Print prime numbers from 1 to n (my approach was taking the time of O(N^2))
• Reduce the time complexity of the previous program. If possible try to reduce the time complexity further.

https://www.geeksforgeeks.org/c-program-to-check-prime-number/

• Multithreading vs. Multiprocessing(I said Interviewer I didn’t know anything related to threading he was okay with it and kept on asking other questions ).
• Explain Encapsulation with a real-life example.
• Explain the Friend keyword and its uses in oops.
• Asked about my project Briefly, and explained it well.

Asked me about error exceptions explained to him a little bit with no proper idea but he kept on adding hints to it.

Round-2:(Technical – 45 Mins )

• Brief Introduction
• Asked me about the previous round and asked about previous codes
• Then gave me one string sai2teja I had to reverse it without using any stl function.

Conditions:

• Don’t change the positions of the digits.
• Follow up can you optimize the solution?
• They asked me to explain 4 pillars of oops.
• Asked about my interest in machine learning and about my projects which were Machine learning-related.

Round-3:(HR – 30 Mins)

• Brief Introduction
• Asked my interest in further studies
• Asked time complexities of basic sorting techniques
• Then, he asked me why I started with machine learning
• My Favorite subject in academics and asked why it is

Asked about my interest field in companies where should I want to work in front end team or backend or machine learning

And explained roles in their company.