Placement Papers - IBM

IBM Placement Paper (Technical)

Paper: IBM Placement Paper (Technical)
 
Technical
 
1. what does vector processing do?
 
2. What is the use of software configuration management?
 
3. what command is used to append two files using who that is listed by ls;
 
4. if there is a problem in a network during transmission which is used to detect that?
 
a. protocol analyzer,  b. SNMP....
 
5. In C, x-=y+1 how will u represent it..
 
a. x=x+y+1,b.-x-y-1,c.-x+y+1....
 
6. What does Trigger do?
 
  7. In which topology we use less amount of cables.
 
a. ring, b. bus, c. star, d. mesh

8. Which sorting techniques is best for already sorted array...?.
 
Ans: bubble sort
 
9. Which is said to be a real-time system.?
 
a. credit card system
 
b online flight reservation system
 
c bridge control system...not sure
 
10. decimal to octal conversion problem? ans A
 
11. A person having a/c number, a/c name, bank name, a/c type.. which is the primary among the above?
 
12. why data integrity is used?
 
13. if a primary key is an attribute of another one table means........
 
a. candidate key
 
b. foreign key
 
c. super key
 
d. composite key
 
14. int (*a)[4]. Explain this expression
 
15. Difference between 0123 and 123 in c
 
Ans : 40
 
16. in c r+ is used for
 
a. read only
 
b. writing only
 
c. both 1 and 2