Systems analyst Interview Questions

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Infosys
Systems Engineer was asked...21 September 2012

I thought the interview was all about communication skill... no c c++ java.. no unanswerable questions... no domination... quite cool... he had to see me speaking confidently with out the bias of fear r something else... so he kept the interview cool... of-course, i have tried my best for that... You will be almost selected if u pass the written exam... provided with acceptable communication levels and confidence.. no need of Hollywood level speed or verbal skills... just convey your matter in a cool and simple way.. Take some care to protect your character by answering with contradiction or domination.... if done so.. u have got yourself a job at Infosys...

11 Answers

it was really usefully .thanks

its asuch a important information ......... thank you .............

really helpfull information....thank u:)

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Intel Corporation

You have 8 pennies, 7 weight the same, one weighs less. you also have a judges scale. Find the one that weighs less in less than 3 steps.

13 Answers

A better answer: Split the 8 pennies into 3 groups of 3,3,2 pennies. Weight the first two groups of 3 pennies each. Case 1) - They weight the same. Therefore, take third group of 2 pennies and find the lighter coin. Case 2) Group 1 weights more than Group 2. Take group 2 (3 pennies) and pick any 2 out of 3. If they weight the same, then the third penny is lighter. Answer is trivial if they don't weight the same. It works for any scenario. Always split the groups in 3. Less

Neil has it right. Dave - the question says less than three steps.

I Can do it in one step: Look at the year on the pennies. If 7 pennies weigh the same it means that all 7 were manufactured either before or after 1982, when the mint changed the composition of the coin from solid copper to copper with a zinc core. the one that weighs differently was minted on the opposite side of 1982 as the 7 other pennies. Less

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Tata Consultancy Services

What will you do when your girl friend is getting married on the same day as a important client meeting?

10 Answers

yes, firstly i will do marriage

I would rather invite my client ti my wedding. afrer giving him a feast will set up the meeting there itself. Less

First I have one question my girlfriend getting married me or another person??? Suppose she getting married another person my answer is I feel 💯 because ture feeling and then I attended client meeting successfully ... Why because she think am not important person in her life .. so that reason of she getting married another person... I think client meeting more important .. because my client give me a full trust with me . Less

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Google

How many trailing zeros are in the number 5! (5 factorial)?

8 Answers

This sounds like one geared not so much towards getting the right answer, but getting to it the right way. If you think a bit and say "one", the interviewer will know you did it the brute-force way, doing the math. You'd get at the answer faster, and probably impress them more, if you think instead how many times a ten will be produced in doing that math, rather than what the actual result of the math will be. Less

http://www.purplemath.com/modules/factzero.htm

To generate a zero, we need a (5,2) factor pair. For any given number N, we have at least N/2 number of multiples 2, so the number of zeroes can be determined by the count of numbers that have 5 as a factor (i.e we have more 2s than 5s) Roughly, we can count N/5 numbers that are multiples of 5, add to that numbers that are multiples of 5^2 (these will have two 5 factors) i.e N/25, add to that numbers that are multiples of 5^3 (these will have three 5 factors) and so on. For eg: 10! -> 2 multiples of 5 -> 2 zeroes 100! -> 20 multiples of 5 + 4 multiples of 25 -> 24 zeros 500! -> 100 multiples of 5 + 20 multiples of 25 + 4 multiples of 125 -> 124 zeros 1000! -> 200 multiples of 5 + 40 multiples of 25 + 8 multiples of 125 (5^3) + 1 multiple of 625 (5^4) -> 249 zeros Less

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Qualcomm

Given a wireless channel with loss rate 0.1, what's the throughput one can get with retransmission.

8 Answers

It can modeled as binary symmetric channel. As to my understanding, channel capacity can be acheived with perfect feedback and simple retransmission scheme, so i guess the answer is 1-H(0.1). Less

10/(1.23456...)=8.1 packets per sec

Interviewer was correct. With probability 0.1 you have one retransmission, with probability (0.1)^2 you have two, etc., since you can also lose the retransmitted packets, reducing the throughput to approximately 0.89. Less

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CMS IT services

are you able to live in Andheri on rent with salary 8000 ?

7 Answers

but It will be very difficult in surviving.

Nope

Yes

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NVIDIA

identify the number of 1s in an integer is odd or even

7 Answers

Was taken from: http://graphics.stanford.edu/~seander/bithacks.html unsigned int v; // word value to compute the parity of bool parity = false; // parity will be the parity of v while (v) { parity = !parity; v = v & (v - 1); } Less

Above solution is incorrect. void OnesAreOdd(int n) { int i=0; while(n!=0) { n=n&(n-1); i=i^1; } return i==1?true:false; } Less

Let number be c int count = 0; while ( c != 0 ) { count += (c & 1); c >> 1; } if ( count%2 == 0) printf("Number of 1s are even); Less

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Tata Consultancy Services

nothing as such but you need satisfy them for your ability in IT.

3 Answers

i think depends on demand and oppertunity.

I think practically work experience is very helpful after diploma/degree otherwise dificulty. Less

selse job reqverment

HDFC Bank

why should we hire you

7 Answers

Bcz i have all the skills regarding to this position i do each and every thing to achieve my goals by which my company will achieve good profit.. Less

Bcz I can do hardwork for this position

I do your work honestly and sincerely and you said that my work becomes my only thing and I have already worked in everything, so I already have experience in this work. Less

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Qualcomm

There is a body of water that starts with 1 square unit, and doubles in size every day (2 units after 2 days, 4 units after 4 days). It takes 100 days to fill up. How many days would it take to fill if you started with 2 square units?

6 Answers

100 - 1 = 99 days

Starting with 2 square units at time t=0 is like 1 square unit at t = 1. [this logic is the key to answering the question]. Now let's do the first few cases. t = 0: size = 1+1 = 2 t = 1: size = 2(1+1) = 2+2 = 4 = f(2) in the 1 unit case. Pretty easy to see it only requires 1 time period less from here. The OP was right. Less

This question is phrased incorrectly. I think you meant "4 units after 3 days". Which makes your answer wrong as well. This is not helpful at all. Less

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