Rajesh Puppala − Profile

14

C

B removal of values that never used in out code or unreachable statement called dead code elimination.

B

Table is used for creating not for ampping so hence b is right ans

reason may logical independence may deals with functional dependecies among relations and entities hence change in fds may change physical structure.

C isa correct

any time stamp protocal how it suffers from cascading rollbackit suffers from only aborts bcz of time stamps

locks may suffers from cascading rollbacks and option a is telling 2pl suffes from deadlock that is also correct

A is correct

A is correct

if it is leftshift then it is ans b

T(N)=T(N)+O(N)

bcz

N/3+2N/3 =N

hence ans b