Online NAT ICS Computer Science Computer Test Preparation for Pakistani Students

NAT I Computer Science Computer

Sr. #	Questions	Answers Choice
1	In hybrid distribution which kind of fragments are stored at only one site?	Critical fragments Non-critical fragments Critical and non-critical fragments Only large fragments
2	In ERD model the relationship between two entities is represented by a	Diamond symbol Rectangular box Oval symbol Line
3	Database development process involves mapping of conceptual data model into:	Object oriented data model Network data model Implementation model Hierarchical data model
4	An entity related to itself in an ERD model refers to	Recursive relationship One-to-many relationship Many-to-many relationship One-to-one relationship
5	Which of the following keys does not hold uniqueness property?	Candidate key Foreign key Primary key Secondary key
6	From database data is accessed through	Queries Function Reports Information
7	DBMS must be able to accept	Data definitions Programs Data records Information
8	Which of the following package is used by the application programmer in order to write a program?	Low Level Language High Level Language Machine Language Assembly Language
9	Data exists in a data base in the form of	Tables Queries reports Files
10	The output of a query is the form of	Table Reports Files Forms