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Site engineer Interview Questions

"The interview for a position as a site engineer will consist of questions about your technical knowledge of civil engineering and construction, experience with supervising different types of sites, and your attention to detail. Employers will want you to have a degree in engineering or a construction-related discipline."

Site engineer Interview Questions

Site engineer Interview Questions

"The interview for a position as a site engineer will consist of questions about your technical knowledge of civil engineering and construction, experience with supervising different types of sites, and your attention to detail. Employers will want you to have a degree in engineering or a construction-related discipline."

1,794 Site Engineer interview questions shared by candidates

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Sanofi
Site Engineer was asked...June 4, 2016

Do you have experience working with and identifying various valves, etc.?

1 Answers

Yes, in school I was taught about various vales such a butterfly, solenoid, and diaphragm. Less

LinkedIn

There were two and they both happened during the live-debugging portion of the interview. All of the live debugging questions revolved around a simple website that had something broken in it. You were to fix the brokenness to be able to move on to the next page. In total there were 4 questions, each getting progressively more difficult to debug. The first question was a simple permissions problem on a file being requested by the client. The ownership of the file (a blank text file) was too restrictive, so it was raising an error. You could verify this in the apache web logs. The second error was due to a permission problem too, however this time the file was hidden in a sub directory of the main web site. You could only determine this by looking at the apache configuration file to see that the shtml file was located somewhere else. After that, change the permissions to fix. The third was a head scratcher. The filename in question was raising a 500 error and showing urlencoded characters in the filename in the web log. Looking at the name of the file on disk though, showed nothing out of the ordinary. It turns out that the unicode representations for the characters in the file name are printed in the terminal as english ascii characters. The only way you can tell that this is the case is to open the file and do a search for the filename itself and see if it matches. For example, if the correct filename is called "challenge1.shtml" you can search for that exact string but NOT find the unicode version of it. Once you find the incorrect file name, delete it and type the correct file name (in this case "challenge3.shtml" into the file and the page works. The final question was a segfault occurring in apache. It resulted in no information being returned to the client. You could see this occurring in the apache web logs as well as the Chrome tools. The apache web logs noted that a core file was dumped. This challenge required that you know a little bit about gdb and C programming. Basically, you need to run the core dump through gdb. gdb /path/to/apache /path/to/core/dump It will spew out a lot of stuff. In particular, it mentions that there is something happening in an apache module; mod_rewrite or something...it doesnt really matter. The output also points to the C source file for that module which is, conveniently on disk. Open that file in vi and jump to the line number mentioned in the gdb output (line 1861 or something). There you will see that if the filename matches challenge4.shtml to SIGSEGV; there's your smoke gun. They dont ask you to fix the final challenge, only to explain what the strstr is doing. The error in question basically looks like this if (strstr($r->filename, "challenge4.shtml") != NULL) { SIGSEGV } Just point out to them that, yeah, it's segfaulting when I ask for that file.

11 Answers

FYI, in 2020, this is still relevant.

Relevant in 2021 too.

OP here. Yes, for my interview on site they only asked two

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Booking.com

They gave me the below question to solve in 30 mins. Based on customer research, we know that our guests get confused when they are searching for accommodation and they found multiple hotels with the same name in the same city. To avoid this, we want to create a tool to identify "confusing" cities: cities with at least 3 hotels with the same name. Given a list of tuples (hotel_id, hotel_name, city) return a list of all "confusing" cities. Input: [ {hotel_1234, "Sheraton", "Amsterdam"} , {hotel_1000, "Sheraton", "Buenos Aires"} , {hotel_1001, "Hilton", "Amsterdam"} , {hotel_1002, "Royal Palace", "Bogota"} , {hotel_1003, "Hilton", "Amsterdam"} , {hotel_1004, "Sheraton", "Buenos Aires"} , {hotel_1005, "Sheraton", "Buenos Aires"} ] Output: [ "Buenos Aires" ]

6 Answers

Also possible solution: #/usr/bin/python3 import yaml if __name__ == '__main__': # file.txt contains Input data with open("file.txt") as f: res = yaml.load(f) only_uniq = set() for d in res["Input"]: only_uniq = list(d)[2] print(only_uniq) Less

Input = [ ("hotel_1234", "Sheraton", "Amsterdam") , ("hotel_1000", "Sheraton", "Buenos Aires") , ("hotel_1001", "Hilton", "Amsterdam") , ("hotel_1002", "Royal Palace", "Bogota") , ("hotel_1003", "Hilton", "Amsterdam") , ("hotel_1004", "Sheraton", "Buenos Aires") , ("hotel_1005", "Sheraton", "Buenos Aires"), ("hotel_1234", "Sheraton", "Amsterdam"), ] confusing_cities = [] for i in Input: counter = 0 if i[2] in confusing_cities: continue for k in Input: if i[1] == k[1] and i[2] == k[2]: counter +=1 if counter == 3: confusing_cities.append(i[2]) break print(confusing_cities) Less

from collections import Counter Input = [ ("hotel_1234", "Sheraton", "Amsterdam") , ("hotel_1000", "Sheraton", "Buenos Aires") , ("hotel_1001", "Hilton", "Amsterdam") , ("hotel_1002", "Royal Palace", "Bogota") , ("hotel_1003", "Hilton", "Amsterdam") , ("hotel_1004", "Sheraton", "Buenos Aires") , ("hotel_1005", "Sheraton", "Buenos Aires"), ("hotel_1232", "Sheraton", "Amsterdam"), ("hotel_123222", "Sheraton", "Amsterdam") ] confusing_cities = [] for i,v in Counter((elem[1],elem[2]) for elem in Input).items(): if v >= 3: confusing_cities.append(i[1]) print(confusing_cities) Less

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Google

What's 2^32 ?

6 Answers

4 giga

The correct approach is to show that you can break down the problem. 2^32 = 2^10 * 2^10 * 2^10 * 2^2. 2^10 = 2^8 * 2*2 = 256 * 4 ~(roughly) 1000 So: 2^32 ~ 1000 * 1000 * 1000 * 4 = 4,000,000,000 Less

The number that will overflow a variable of type unsigned 32-bit int. const MAX_U32INT = 2^32 -1 Less

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LinkedIn

You need to distribute a terabyte of data from a single server to 10,000 nodes, and then keep that data up to date. It takes several hours to copy the data just to one server. How would you do this so that it didn't take 20,000 hours to update all the servers? Also, how would you make sure that the file wasn't corrupted during the copy?

6 Answers

P2P is the first thing that came to my mind. BitTorrent is a good tool and I believe Twitter or Facebook has developed this kind of distributing tool based on BitTorrent protocol. And I don't believe the 1TB data will be read at the same time. We can write a FUSE module that mount the directory from the central server. When one of the files was read, we can copy it and cache it locally. Less

P2P is the best solution. If P2P is not allowed. We can use broadcast, for example: server1-> server2, then we have 2 sources, server1->server3, server2-server4; then it will take about (time to transfer one copy)*log(10000)= 3*3.32192809489*(time to transfer one copy). For fault tolerance, redundancy or retry. Or deploy a distributed file system so that file can be accessed. Central server solution is like NFS, however, NFS's server could be bottleneck. Less

P2P is the best solution. If P2P is not allowed. We can use broadcast, for example: server1-> server2, then we have 2 sources, server1->server3, server2-server4; then it will take about (time to transfer one copy)*log(10000)= 4*3.32192809489*(time to transfer one copy). For fault tolerance, redundancy or retry. Or deploy a distributed file system so that file can be accessed. If possible compression for saving (time to transfer one copy) Central server solution is like NFS, however, NFS's server could be bottleneck. Less

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Medhaj Techno. Concept Pvt.

In which class do you read?

5 Answers

B.tech

B.tech

B.tech

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Site Engineering

Which college you have studied...?

5 Answers

I have studied at K.S.RANGASAMY COLLEGE OF TECHNOLOGY

I have studied at Dhanalakshmi Srinivasan Institute of Technology

I have studied at SATHYABAMA UNIVERSITY...

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Thermax

What is welding ?

4 Answers

Two different metal joint together to make as single metal

welding is process of joining two or more metals permanently by application of heat. it is a permanent joint so better emphasize on that Less

Two different metal Joint together to make as single metal

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Google

Find all pairs of 3 in an array that add to n.

4 Answers

Wrote code.

public static void printPairSums(int[] array, int sum) { Arrays.sort(array); // 2 pointeurs int first = 0; int last = array.length - 1; while (first < last) { int s = array[first] + array[last]; if (s == sum) { System.out.println("( "+array[first] + " ," + array[last]+ " )"); ++first; --last; } else { if (s < sum) ++first; else --last; } } } //Exemple public static void main(String[] args) { // TODO Auto-generated method stub int[] myIntArray = new int[]{1,2,3,-1,4,5,-2,7,1}; printPairSums (myIntArray, 3); } Less

Above solution is not correct. interviewer is asking for set of 3 integers that sum to N. I think what you calculated is a set of 2 integers that sum to N. OP has posted the problem incorrectly. It should say "Find all pairs of 3 in an array that add to n" instead of Find all pairs of 3 in an array that add to n". Pairs is for 2 values. Below code should do the work: void findsets (vector v, int sum) { sort(v.begin(), v.end()); for(int i = 0; i < v.size() -2; i++){ int rem = sum - v[i]; int left = i+1; int right = (int)v.size()-1; while(left Less

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Google

Given a string, return true if after jumbling/rearranging the characters of the string will it be a palindrome. and false if not. eg: given string "evlel", it can be rearranged to "level" and thus it is a palindrome, and return true. eg: 1234 cannot be rearranged to become a palindrome hence false.

4 Answers

A palindrome is a word that has the same spelling forward and backwards. “1234” are numbers and cannot be a palindrome. Less

“acrecar” is a palindrome by that definition of the word, “racecar”, “dad”, “pop”, “poop”. These I feel like may be better examples. “454” would be an example of a palindrome that is a number. Less

This solution uses an unordered map to be O(n) #include #include #include int main() { std::unordered_map map; const std::string test = "aabbbaaccc"; for(size_t i = 0; i ::const_iterator it = map.begin(); it != map.end(); ++it) { if (it->second % 2 != 0) { oddNumber++; if (oddNumber > 1) { std::cout << "Not palindrome" << std::endl; return -1; } } } std::cout << "Palindrome" << std::endl; return 0; } Less

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