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Dell Technical Interview Questions

Posted on :05-02-2016
Dell Technical Interview Questions
 
Note : Answer all Questions in Section I, I and III maximum correct attempts in this section will be qualified
 
Section I : Programming
 
Answer any 5 of the following
 
Q1. Write a function in 2 different ways that will return f{7} = 4 and f (4) = 7

Q2. Implement strcat {} function with out using string function and optimize the function for speed and space
 
Q3. Write a C++ programme without using any loop {if,for,while etc}to print number form 1 to 1-- and 100 to 1
 
Q4. Write a recursive function to get the factorial of a given number only if it is prime
 
Q5. Write a function to reverse a linked list
 
Q6. Write a function to remove duplicates in array

Q7. Write a function to find if the given number is a power of 2
 
Q8. Write a program that ask for user input from 5 to 9 then calculate the average
 
Q9. Write a programme to Exchange two number without using a temporary variable
 
Q10. Convert integer number in binary without loops
 
Section II -Oops
 
Q1. What is the difference between overloading and overriding?
 
Q2. What is a virtual function? Explain with an example?
 
Q3. What are the main features of OOPS? Explain them briefly

Q4. In inheritance explain the public private protected modifiers behaviors on data members.
 
Q5. What is a factory method, give reference to any example class
 
Section III : Analytical
 
Q1. If  you have a 5 liter and a 3 liter measuring can, how would you measure exactly 4 liters of liquid?
 
Q2. In an analog clock how many days each day do both the hour hand and minute hands overlap?

Q3. A magical pond has one lotus flower in it begin with.  At the end of every day the number of flowers doubles.  It takes 30 days  to fill the complete pond.. How many days will it take to fill half the pond with lotus flowers?
 
Q4. Suppose you had 8 billiard balls, and one of them was slightly heavier, but the only way to tell was by putting it on a scale against another.  Whats the fewest number of times youd have to use the scale to find the heavier ball?
 
Q5. There is a room with a door {closed} and three light bulbs.  Outside the room there are three switches connected to the bulbs.  You may manipulate the switches as you wish, but once you open the door you cant change them.  Identify each switch with its bulb
 
Technical Interview Questions:
 
Q1. What is composition and aggregation?
 
Q2. What is the difference between pointers and references? Why?
 
Q3. What is the order of calling of constructors and destructors in class hierarchy? Explain
 
Q4. What is RITI?
 
Q5. What is the difference between  heap and stack memory? when are they used?

Q6. Explain "Passing by value", "passing by pointer" and "passing by reference"?
 
Q7. What is the difference between thread and a processing are the used?
 
Q8. Difference between array, vector, list and de queue?

Q9. Implement a algorithm to sort an array?
 
Q10. Explain pre-order, post-order and in-order binary tree traversal?
 
Q11. Explain compiling and linking in brief?

Q12. What is the difference between union and struct?
 
Q13. What is the difference between char a [] ="string";and char .p ="star";?

Q14. What is a DLL? Explain a few advantages of using DLLs.
 
Q15. What is an interrupt?
 
Q16. What is the difference between UDP and TCP protocols?
 
Q17. Explain in brief Client Server technology?
 
Q18. How will you get the no. of instances created for a class from within the class?
 
Q19. What are RAM and ROM also explain difference between them?
 
Q20. What is the difference between HTTP GET and HTTP Post? Explain
 
Q21. What is the difference between heap and stack memory? Why


  
   






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