# 12 k

Questions d'entretien pour Program Manager partagées par les candidats

## Principales questions d'entretien

Trier: Pertinence|Populaires|Date
On a demandé à Program Manager...5 juillet 2012

### Consider a lift lobby where people are waiting for the lift. Now when lift arrives people get in irrespective of who came first. Thus, the person who came first keeps waiting and others keep getting in. Design a lift system which can solve the problem of this person.

16 réponses

Have a two way door opening in the lift. But always entry should be in one side and exit other side. Moins

Sorry for my previous response. Wrongly understood the question

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### You are on a game show. There are three doors, behind one of which is a prize and the other two is a chunk of coal, and the host knows which door holds the prize. You choose door #1. Before it is opened, the host opens door #3 and reveals a lump of coal. You have the choice to stick with the door you chose originally or switch to door #2. What do you do?

17 réponses

Interview Candidate and Anonymous are right. This is also known as the Monte Hall problem Moins

Your choice splits the doors in two sets. Set A contains the door you selected, and the probability that is a prize behind this door is 1/3. The set B contains all remaining doors, and the probability that the winning door is somewhere in there is 2/3. By removing one door, which all have the success probability of zero because there's coal behind them, from set B, only one door remains in B, but the overall probability for success in set B is still 2/3. Therefore you must switch. Moins

Interview candidate is right. You got 1/3 chance that prize is behind door #1 and you lose if you switch. And you got 2/3 chance that prize is behind either door #2 or #3. Since the host will always eliminate the wrong one. 2/3 chance will be allocated on the left one. Moins

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### You are on a desert island, and all you have is a pair of dice. You know that a plane flies over the island on the 30th day of the month. Using the dice, how can you make a calendar that always tells you the day of the month?

12 réponses

Using two digits in "base 6" you can count up to 35. Typically base 6 would use digits 0 to 5, but in this case you can adjust and use 1 through 6. Moins

How about... Dice 1: each pip equals 1 day: 1 pip =1 day, 2 pips = 2 days, etc. Dice 2 each pip equals 5 days: 1 pip = 5 days, 2 pips = 10 days 3 pips = 15 days etc. Die 2 is always to the left of Die 1. For days less than or equal to 5 use 1 die. When counting a day that is a multiple of 5 (days 5,10,15 etc.) count day by putting Die to 5 pips and Die 2 to the remaining number of days. Moins

@Rikesh: How will you indicate 17, 18, 19, 20, 27, 28, 29, 30. Here is what i think... D D 6*0+1=1 6*0+2=2 6*0+3=3 .. 6*0+6=6 6*1+1=7 6*1+2=8 .. 6*1+6=12 6*2+1=13 6*2+2=14 .. 6*2+6=18 6*3+1=19 6*3+2=20 Moins

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### what is angle between hour hand and minute hand in clock at 4:20 ? what is biggest conflict management you have handled in your work place

11 réponses

IF min's hand rotates for 360 deg, hr's hand rotates for 30 deg - so for 60 min - hr's hand rotates for 30 deg. For 1 min it rotates for 0.5 degree. Hence, for 20 min it rotates for 10 degrees. The angle between hr's hand and min's hand should be 10 deg. Moins

in every 60 minutes hour hand moves 30 degrees. so at 14:20 ( it means that 20 minutes have past since last turn) hour hand moves 20*30/60 = 10 degrees so the answer is 10 degrees... Moins

10 degrees

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### Why Amazon?

11 réponses

high integrity and efficient services provided by Amazon best in class and professionally managed online deliveries to the best expectations of every Customer Moins

For best and right direction experience

I completed diploma branch EEE

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### Given a string like "I'm being interviewed by Amazon" implement a method that reverses the given string so that it looks like "Amazon by interviewed being I'm".

10 réponses

we can first reverse the whole string, and then reverse the individual words O(n) complexity Moins

3-line solution in PowerShell: \$str = "I'm being interviewed by Amazon".Split() \$([array]::Reverse(\$str) ) [string]\$str Moins

" ".join("I'm being interviewed by Amazon ".split()[::-1])

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### You have a cake. How many straight cuts do you need to divide the cake into 8 equal pieces?

9 réponses

It depends on the shape of the cake.

3 First 0 degree Second 90 degree No I have 4 have equal parts. Third From the Centre height wise. (Z-axis) Now I have 8 equal parts. Moins

With 4 straight cuts through 0, 45, 90, and 135 degrees You can cut the cake into 8 equal pieces Moins

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### How many ways that you can choose 3 desserts from a menu of 10?

7 réponses

Just to clarify: the original reviewer's answer - C(10,3) - is indeed incorrect. More specifically, C(10,3) represents a number of ways to pick 3 DISTINCT desserts. The problem statement does not suggest that the desserts should be unique; moreover, it's very natural to order three identical desserts! I believe the correct answer to be a sum of C(10,3) /* number of ways to pick 3 distinct desserts */ + 10 * 9 /*number of ways to pick 2 matching and 1 distinct dessert */ + 10 /* number of ways to pick 3 matching desserts */ = 220 Moins

C (10, 3) = 120 - This is very simple

If order matters (it would to me if I were eating them), and repetition is allowed, the answer would be 1,000 since you can choose any of the 10 for the first, second and third dessert resulting in 10 X 10 X 10 possible dessert sequences. Moins

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### If a change in a product made Google less money over all and even would reduce the revenue of partners but might save money for the consumers should Google still do it?

6 réponses

&gt;&gt; seemed to want to base the answer on "doing something good for the world" as being Google's real mission. That is the right answer. If you read Google's set of values, it says there clearly - you dont have to be evil to make money. He was testing if you believe in that. Moins

Let's start with what is it we are losing and gaining If we get more users If there is a better way of doing it, a competitor is going to find it out and that as always except for very loyal customers, the herd will move to the competitor. So it makes sense for Google itself to provide this offering under "doing something good for the world" and keep the business going and creating an entry barrier to the competitor. This will ensure the users seeing as a good will. Moins

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### You have a program with something or component that fails 1 week before launch. What do you do?

5 réponses

I believe the point here is not saying that you should/have a back-up plan for this (you can mention that at first, but then assume that something went terribly wrong)... So in my case I would go through the how crucial is this program/component for the launch? can be fixed with an update? how much time/resources are needed to meet the deadline? what would be the impact of delaying the launch until the problem is solved? is it feasible? after the brainstorming and impact analysis you could take the decision of delaying, solve the problem or ship everything as-is and fix the problem afterwards. Once the problem is solved you should go through the situation again and understand what went wrong and prevent it from happening again. Moins

Alvaro is right. The question is about how pragmatic and adaptable you are.

You always have a have a back-up part ready, fully qualified and and waiting in the wings! There is no way to launch an iPhone 4 and sell millions of units on a tight schedule without a backup plan for every part. Moins

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