Exists select distinct customer

Q)The layer in the OST model handles terminal emulation

can be represented with 8 bits

a) -128 b) -255 c) -127 d) 0

a) select A employe no. from employe A , where exists from employe B

where A employe no. >= B employe having (count(*) mod n)=0

Q)Type duplicates of a row in a table customer with non uniform

b rowid

c) delete customer a where custermor no. in

a) 4 bytes b) 2 bytes c) compiler dependent d) 8 bytes

ans: compiler dependent

Q}what does the hexanumber E78 in radix 7.

(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)/Q

F occurs only if B occurs

D occurs if B or C occurs

G occurs if F occurs

NOTE: check following answers.

III. D

(a) I only (b) II only (c) III only (d) I,II, & III

(a) D (b) D and G (c) G and H (d) F and G (e) J

ans: (a)

Q). which may occurs as a result of cause not mentioned

Q). E occurs which one cannot occurs

(a) A (b) F (c) D (d) C (e) J