12th Class ICS Computer Science Chapter Wise Online MCQ Test With Answers PDF

ICS Part 2 Computer Science Online Test

Sr. #	Questions	Answers Choice
1	Which of the following is used to describe the characteristics of an object?	Attribute Relationship Cardinality Modality
2	A data model is :	A logical representation of the structure of the database Shown as an entity-relationship diagram Transformed into tables and relationships All
3	In hybrid distribution, what types of fragments are stored at only one site?	Critical fragments Non-critical fragments Critical and non-critical fragments Only large fragments
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 us not unique:	Candidate key Forein key Primary key Secondary key
6	Which of the following are properties of relations?	Each attribute has a unique name No two rows in a relation are identical There are no multivalued attributes in a relation All of the above
7	An index can be used to :	Improve the performance of the database Document the structure of the database Reduce data dependency for application programs All
8	Which of the following is NOT a characteristic of relation?	Each row is unique The order of columns is significant The order of rows is insignificant Columns are all elemental or atomic
9	The data or information that describes an entity is called:	Attribute Data item Record Tuple
10	A person, place, thing or event about which data is kept in the database is called:	Attribute Field Record Entity
11	A row of a relation is called:	Attribute Entity Tuple a and c
12	An attribute is also known as a:	Table Row Relation Field
13	A relation is also known as:	Table Tuple Relationship Attributes
14	A table is a two-dimensional structure that consists of:	x and y co-ordinates Matrix elements Rows and columns Intersection of data
15	A two-dimensional table of data is called:	Group Set Module Relation
16	A table should have :	Primary key Secondary key Composite key Sort key
17	The forein key is found in:	Parent table Dependent table Pivot table Index table

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