(A) replace relational design
(B) be close to a users perception of the data
(C) enable low level descriptions of data
(D) enable detailed descriptions of data query processing
The main software package that supports a database management approach is called?
(A) Data Dictionary
(B) Report Generator
(C) Database Management System
(D) Distributed database
Which model operates at the lowest level of abstraction?
(A) conceptual
(B) internal
(C) external
(D) physical
There is an approach in defining the quotient of regular languages ie the language Q is said to be quotient of two regular languages P and R, denoted by Q=R/P if?
(A) PQ=R
(B) R=PQ
(C) QR=P
(D) Non of above
If an effectively solvable problem has answered in yes or no, then this solution is called __.
(A) Decision problem
(B) Decision method
(C) Decision procedure
(D) Decision making
If L is a regular language then, Lc is also a __ language.
(A) Regular
(B) Non-regular
(C) Regular but finite
(D) None of the given
For a certain language L, the complement of Lc is the given language L i.e. (L^c)^c = L?
(A) True
(B) False
(C) NA
(D) NA
Let L be a language defined over an alphabet Σ, then the language of strings, defined over Σ, not belonging to L, is called Complement of the language L, denoted by Lc or L’?
(A) True
(B) False
(C) NA
(D) NA