b) and f) are correct answer, as records from child is removed before parent. It is not mentioned any where that logging is required, and in production environment truncate...

CREATE TABLE TEST

(

nIDENTITY numeric(38,0) identity(10000000000000000000000000000000000000,1),

nNo int)

INSERT TEST

SELECT 1

UNION ALL

SELECT 2

SELECT LEN(nIDENTITY),nNo

FROM TEST