Deloitte Business Technology Analyst interview questions

*Warm-ups* 1. Introduce yourself. 2. Why Deloitte? 3. Tell me about the projects you have done? *OOPS* 1. Do you know about OPPS? 2. What are Objects and classes? 3. What is inheritance? 4. What is Multiple Inheritance? 5. What is the Diamond problem and how to resolve it? 6. What is the scope of protected members of a class? 7. What is a friend function? 8. Use of virtual Keywords. 9. What is Polymorphism? 10. What is Operator Overloading? 11. Difference between Overloading and overriding. 12. What is encapsulation? 13. What is an abstract class? *Data Structure* 1. Tell me about stack and queue. 2. The time complexity of Binary Search. 3. Implementation of the heap and its working when a new element is inserted. 4. What is a complete binary tree? 5. Which type of data structure an array is? *ALGO* 1. Write the algorithm to print the pattern 1 2 3 4 5 6 7 8 9 2. Print the sum of the place value and face value of all the digits of a given number. Eg:- Input:- 1234 Output:- (1000+1)+(200+2)+(30+3)+(4+4)=1244 *DBMS* What is indexing? Implementation of indexing and its working. Key concept in indexing. What is the primary key? Can a primary key cell be Null? How are foreign keys and primary keys related? Tell about the ACID property.