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IBM Interview Questions - 1 Print E-mail

1. Which one is not an aspect of relational database

a. tree like structures                  b. records                c. fields                   d. tables

Answer : a

 

2. Maximum value of 3x^2-4x+7

Answer : INFINITY

 

3. A character array, char a []= “ Have a nice day”; p is pointer to that, containing base address the p+=7 points to

(a) a           (b) e             (c) n

Answer : (c) n

 

4. Out of 30 members, 9 are wearing shoes but not caps and 18 are wearing shoes, how many members are wearing only caps?

Answer : 12

 

5. 2D array elements are stored in,

(a) Column major order                    (b) Row major order                      (c) Both

 

6. On Monday a banker processed a batch of cheques, on Tuesday she processed three times as many, and on Wednesday she processed 4000 cheques. In the three days, she processed 16000 cheques. How many did she process on Tuesday?

Answer : 9000

 

7. If 6 squares of equal size are placed side by side to form a rectangle ofperimeter 294cm, find the perimeter of each square.

Answer :  84

 

8. If there are persons named 1 to n. If each person handshakes with allother persons whose no. is more than him, then how many handshakes are possible.

Answer :  N(N-1)/2

 

9. On a given day, a bank had 16000 cheques returned by customers. Inspection of the first 800 cheques indicated that 100 of those 800 had errors and were therefore the available immediately for data processing. On this basis, hwo many cheques would be available immediately for data processing on that day?

Answer : 14000

 

10. You are in a 400 meter race and you overtake last person, what position you are in?

(a) last but one                (b) first but one                (c) cannot overtake              (d) unpredictable

 

11. A Graph is called ____________ Graph if each edge is identified by an order pair

(a) directed                  (b) undirected                       (c) connected 

 

12. A freight train starts from a station.After two hours a passenger traintravelling with a speed of 60mph.starts from the same station.both thetrains meet after four hours after the departure of the passengertrain.what is the speed of the freight train?

Answer :  40mph

 

13. The average length of three tapes is 6800 feet. None of the tapes is less than 6400 feet. What is the greatest possible length of one of the other tapes?

Answer : 7600

 

14. What is the difference between Dos in windows and DOS in MS-DOS mode?

a) they occupy different memory                 b) they are same                      c) windows can access some special files

 

15. Main advantage of using pointers?

Answer : pointers can be used to return more than one value from a function