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Section-I1). Piggy backing is a technique fora) Flow control b) sequence c) Acknowledgement d) retransmitionans: c piggy backing2). The layer in the OST model handles terminal emulationa) session b) application c) presentation d) transportans: b application3) there is an employer table with key feilds as employer no. data in everyn,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 Bwhere A employe no. >= B employe having (count(*) mod n)=0b) select employe no. from employe A, employe B whereA employe no. >= B employ no. grouply employe no. having (count(*) mod n=0 )c) both a& bd)none of the above4) type duplicates of a row in a table customer with non uniform key feildcustomer no. you can seea) delete from costomer where customer no. exists ( select distinct customer no. from customer having count )b) delete customer a where customer no. in (select customer b where custermer no. equal to b custemor no. ) and a rowid > b rowidc) delete customer a where custermor no. in (select customer no. from customer a, customer b )d) none of the aboveSECTION-II1) long int sizea) 4 bytes b) 2 bytes c) compiler dependent d) 8 bytesans: compiler dependentnote: order of a,b,c,d are doubt but answer is correct.2) x=2,y=6,z=6x=y==z;printf(%d",x) ?3) one question on: -=+,*=-,/=* etcthen 10/5*45=?4)define max 10main(){int a,b;int *p,*q;a=10;b=19;p=&(a+b);q=&max;}a)error in p=&(a+b) b)error in p=&max c)error in both d) no errorSECTION-IIIfollowing are not in order:1. M > D > Y ans: (a)2. 10 in 4 seconds, ? in 6 minutes = 10x6x60/4 = 900 ans: (a)3. 100(100000000+100000000)/10000 = 2x1000000 (ans).4. Q is not equal to zero and k = (Q x n - s)/2 find n?(a) (2 x k + s)/Q (b) (2 x s x k)/Q (c) (2 x k - s)/Q(d) (2 x k + s x Q)/Q (e) (k + s)/Q5. If A occurs which of the following must occursI. F & GII. E and HIII. D(a) I only (b) II only (c) III only (d) I,II, & III (e) I & II (or) II & III but not both ans: (e)6. If B occurs which must occur(a) D (b) D and G (c) G and H (d) F and G (e) J ans: (a)13. If J occurs which must have occured(a) E (b) either B or C (c) both E & F (d) B (e) both B & C ans: (b)14. which may occurs as a result of cause not mentioned(1) D (2) A (3) F(a) 1 only (b) 2 only (c) 1 & 2 (d) 2 & 3 (e) 1,2,3 ans: (c)15. E occurs which one cannot occurs   
  
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