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Interview Process   |   Interview Puzzles / Aptitude
Organization : Oracle
Position : Software Engineer

Oracle Interview Process

I applied for the position of Software Engineer from my university and the process took almost three weeks. Finally, I was interviewed at Oracle. There are four rounds in total at Oracle - Programming Round, 2 Technical Rounds, and Manager Round.

Before all those rounds, we had an online test on our campus which consisted of questions related with basic programming, data structures, OS and aptitude.

Round 1 - Programming Round
It is pretty easy to clear this programming round. If you have studied during your college time, you will be able to clear it easily. I did not find any difficult questions and was able to complete the test easily.

Round 2 - First Technical Interview Round
Get your arrays and strings in order as this is what I was asked majorly about in this round. The only thing I did not like in this round was that there was no uniformity in the questions and they were random. It seemed the interviewer was not interested in the process or was not present there totally. Some questions:
1) There is an array that comprises of 1s and 0s. Shift all the 1s to the right and all the 0s to the left.
2) Reverse only the sequence of words in the string.

Round 3 - Second Technical Interview Round
The interviewer first asked me about the questions that I was asked about in the previous round. Again, I felt that the interviewer was not interested as he kept on moving out while he had asked me to code towers of Hanoi. Some more questions that were asked:
1) A sorted array has numbers from 1 to 100. A number is missing. Find the number without traversing the full array.
2) Reverse only the sequence of words in the string.

Round 4 - Manager Round
Don't expect anything unusual in this round. Some questions of data structures were asked but no need to be surprised as the focus was more on knowing about you and your potential. Where do you see yourself after five years? Why Oracle? What are your future plans? Questions like this were asked.

How to crack Oracle Interview

Frankly, I did not find the interview process difficult. I was comfortable in answering most of the questions. The online test was the easiest I have ever given. This is the reason why maximum of the students who appeared in the test were chosen for interview.

The programming round is easy. All you will have to apply is simple codes and programming as the problems were not complex.

First technical round was pretty easy too. Second technical round can be weighed a bit more on the difficult side in comparison. Prepare well on strings and arrays and data structures. Most of the questions were asked covering these topics only.

The manager round is nothing to worry about. Don't be nervous is what I will suggest. Just answer whatever is being asked and try to impress the interviewer. Do negotiate when the offer is made.

I feel if you prepare nicely, you will definitely crack the interview. I feel it is easy compared to many other companies. Wishing luck to all the candidates.

Thanks Sahu for sharing the details of your interview.
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Popular Interview Problem

I have two rectangular bars.

They have property such that when you light the fire from one end , it will take exactly 60 seconds to get completely burn.
However they do not burn at consistent speed (i.e it might be possible that 40 percent burn in 55 seconds and next 60 percent can burn in 10 seconds).

Problem is : How do you measure 45 seconds ?

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No Death Penalty For Kill Riddle

Ramsay was killed by Sansa in front of everyone but the judge was not sure how to punish Sansa. Why is the judge confused?

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Induction Brain Teasers

Three college toppers are summoned by the inspecting faculty. To identify the best from them, the faculty takes them into a room and places one hat on each of their heads. Now all of them can see the hats on other’s heads but can’t see his own. There are two colored hats – green and red.

Now the faculty announces that he had made sure that the competition is extremely fair to all three of them. He also gives them a hint that at least one of them is wearing a red hat. Now the first one who is able to deduce his own hat color will be awarded the most intelligent student of all award. After a few minutes, one of them raises his hand and is able to deduce the color correctly.


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Interview Marble Logic Puzzle

You are given a set of scales and 12 marbles. The scales are of the old balance variety. That is, a small dish hangs from each end of a rod that is balanced in the middle. The device enables you to conclude either that the contents of the dishes weigh the same or that the dish that falls lower has heavier contents than the other.
The 12 marbles appear to be identical. In fact, 11 of them are identical, and one is of a different weight. Your task is to identify the unusual marble and discard it. You are allowed to use the scales three times if you wish, but no more.

Note that the unusual marble may be heavier or lighter than the others. You are asked to both identify it and determine whether it is heavy or light.

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Unique Brain Teaser

It takes ten minutes to fry a steak (five minutes for each side). You are frying the steaks in a pan that can accommodate only two steaks at one time. What is the least amount of time by which you can fry all the three steaks you have?

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Logical Arrangement Bonfire Puzzle

30 classmates went for a bonfire. While sitting around the fire, they decided to play a game. To play it, they divided themselves into 5 teams in a way that there were 5 rows having 7 people each.

How can this arrangement be possible while sitting around the bonfire?

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Classic Lateral Thinking Problem

There are two glasses in front of you. One of the glasses is full of coke and the other glass is full of lemonade. You take a spoonful of coke and mix it into the glass of lemonade. Now the lemonade glass has a mixture of coke and lemonade. You take a spoonful of that mixture and mix it inside the coke glass.

Now what do you think? - The glass with coke has more quantity of lemonade or the glass with lemonade have more quantity of coke mixed with it?

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Popular Deductive Logic Problem

Eight Brothers lives in an old house where there is no electricity and no computers or any any other gadget.

Brother-1: Reading Comics
Brother-2: Playing Chess
Brother-3: Writing
Brother-4: making food for the family
Brother-5: sleeping and snoring
Brother-6: cleaning house
Brother-7: watering the plants

what is Brother-8 doing ?

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Awesome Probability Logic Riddle

You need to divide 50 marbles(25-red and 25-blue) into two boxes such that the probability of picking red marble is maximized.

Following conditions need to hold true :
1. None of box is empty
2. All the marbles must be in one of two boxes.

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The Elf Logical Puzzle

A wicked sorcerer felt enmity towards elf and thus he chooses four among the rest of the elf's and concealed them. The elves are concealed in the ground in a manner that apart from their head the rest of their body was underneath the ground. The elf's are unable to move their body and can only see in that direction that they are facing. All the elf's are concealed underground in such a way that they form a straight line and among those four elf's that are concealed underground one of the elf is detached form the other three elf's via wall. The entire elf's are in the same direction. The elf that is the furthest can only see the heads of its friends in front and a wall. The elf that is second last can only see one head of his friend and a wall. The second elf can only view the wall. The elf can see nothing.
The sorcerer understands the situation and tells the elf's that he has placed hats over their heads. Among the hats places two hat are blue and the other two are red. Among all the four elfs one of the elf has to guess that which colour hat is he wearing. If the elf answers correctly then he shall be set free or else he will have to dig beneath the ground till the very last.

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