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HCL TECHNOLOGIES PLACEMENT PAPER WITH ANSWERS - 2003

Posted By : Alaguvel.C Rating : +11, -6
Section I:   computer awareness(i.e general things about computer)
Q.15    -ve marks  -1/4   Section II:  Simple  C- language Q. 15     &  -ve marks: -1/4   Section III: On pointers & structures and C++,JAVA( only 1 on this)  
Q.10    each quetion ->2 marks
-ve marks: -1   Section IV:   Analytical        Q.20     each quetion -> 2 marks.
-ve marks: -1/4 SECTION-I
1). Piggy backing is a technique for
a) Flow control b) sequence  c) Acknowledgement   d) retransmition
ans:   c    piggy backing 2). The layer in the OST model handles terminal emulation
a) session  b) application  c) presentation  d) transport
ans: b  application  3)  ans:  a             odd numbers of errors  4)Q.    In signed magnitude notation what is the minimum value that
    can be represented with 8 bits
a) -128  b) -255  c) -127  d) 0 5) c            20 6) a            120 7) b            synchronise the access 8) a            system call 9) b            the operating system 10) a           177333 11) d           used as a network layer protocall in network and
               windows system 12) b           has to be unique in the sub network  13)Q. there is an employer table with key feilds as employer no.data in every n'th row are needed for a simple following queries
will get required results.
 a) select A employe no. from employe A , where exists from employe B
where A employe no. >= B employe having (count(*) mod n)=0
 b) select employe no. from employe A, employe B where A employe no.>=B employ no.grouply employe no.having(count(*) mod n=0 )
 c) both a& b
 d)none of the above 14)Q. type duplicates of a row in a table customer with non uniform key feild customer no. you can see
a) delete from costomer where customer no. exists
( select distinct customer no. from customer having count )
b) delete customer a  where customer no. in b rowid
c) delete customer a where custermor no. in (select customer no. from customer a, customer b )
d) none of the above 15)  c Volatile modifier SECTION-II

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