Euronet Objective/Coding Test

Euronet test --> Follow Java point MCQs (https://www.javatpoint.com/cpp-mcq-part-2#)

Same questions found in https://mcqsets.com/downloads/download-c-mcq-questions-pdf/

Coding question 1
int main()
{
  vector<string> str;
  str.push_back("Camel");
  str.push_back("Horse");
  str.push_back("Goat");
  
  for(auto i= str.rbegin(); i != str.rend(); i++)
  {
     cout << *i <<std::endl;
swap(str[0], *i);
  }
  cout << str[2] <<std::endl;

}

Coding question 2
number N is given as input , such that 1< = N <= 100, Find Number X such that X is divisible by N and sum of digits of X is equal to N
(hint: X != N)

Coding question 3
int main()
{
  std::ios::sync_with_stdio(false);
  vector<int> v{2,3,4,2};
  
  for(auto i: v)
  {
     i--;
  }
  for(const auto &i: v)
  {
     cout << i-1 <<std::endl;
  }
  
}

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int main()
{
  if(fork())
 {
    printf("child process created!");
 }
 else
{
   printf("error in fork()");
}

}
which of the following is true about the above code if it is compiled in gcc++ 5.4
1) we need to replace all c header with c++ header
2) need to include only <bits/stdc++.h>
3) above code fails to compile

What is true statement about the below
A. BTree t;
B. BTree *t = new BTree;

1) A allocates memory on stack and B allocates on heap
2) A releases memory at end of the scope and B memory remains accessible outside scope


What is problem with below code:-
for(int m=2,m<4,m++)

1) Semicolon should be places instead of comma
2) Semicolon is missing at the end of the loop
3) for should have curly braces

which is equivalent to p-> val  1) *p.val 2) (*p).val 3) p.val

Which of the following is part of polymorphism 1) Function Overloading 2) Inheritance 3) Function overriding 4) Abstraction

int main()
{
  std::string str_bad = "Bad allocation exception!";
  try 
  {
    throw 50;
  }
  catch(char c)
  {
    std::cout << "Character exception" <<std::endl;
  }
  catch(...)
  {
    std::cout << str_bad <<std::endl;
  }

}

SDLC , If everyday there is a client call to clear the requirements what type of model it is 
1) Agile 2) Ad-hoc model 3) Build & Fix 4) Waterfall

Which is the following is true about functionality of git branch
1) Create
2) List
3) Delete
4) Merge

 SQL questions
go through material (https://www.goglides.dev/roshan_thapa/hackerrank-sql-problem-solving-questions-with-solutions-2017)

 Deleting a row
 There is a table with 2 entries with ids as 1001 and 1002
 1) DELETE ROW FROM EMPLOYEE_TABLE WHERE ID IS 1002
 2) DELETE FROM EMPLOYEE_TABLE WHERE ID IS 1002
 3) DELETE FROM EMPLOYEE_TABLE ID IS 1002
 
 Fetching multiple rows
 SELECT * EMP WHERE ID >= 1002 AND ID =< 1004
 
 
 
 

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