Q.1 In the relational modes, cardinality is termed as______.
(1) Number of tuples
(2) Number of attributes
(3) Number of tables
(4) Number of constraints
(5) Number of keys
Q.2 Relational calculus is a ________.
(1) Procedural language
(2) Non- Procedural language
(3) Data definition language
(4) High level language
(5) Machine level language
Q.3 Linked lists are suitable for which of the following problems?
(1) Insertion sort
(2) Binary search
(3) Radix sort
(4) Polynomial manipulation
(5) None of these
Q.4 The view of total database content is ______.
(1) Conceptual view
(2) Internal view
(3) External view
(4) Physical View
(5) Hierarchical view
Q.5 Cartesian product in relational algebra is ________.
(1) a Unary operator
(2) a Binary operator
(3) a Ternary operator
(4) Any of above
(5) not defined
Q.6 DML is provided for _______.
(1) Description of logical structure of database
(2) Addition of new structures in the database system
(3) Manipulation & processing of database
(4) Definition of physical structure of database system
(5) None of these
Q.7 ‘AS’ clause is used in SQL for _______.
(1) Selection operation
(2) Rename operation
(3) Join operation
(4) Projection operation
(5) Both 1 and 2
Q.8 ODBC stands for ______.
(1) Object Database Connectivity
(2) Oral Database Connectivity
(3) Oracle Database Connectivity
(4) Open Database Connectivity
(5) Object Data Connectivity
Q.9 PMTLR is acronym for _______.
(1) Page Map Table Limit Register
(2) Page Memory Table with Limit Registery
(3) Paragraph Map Table Limit Register
(4) Page Mapping Table Limit Row
(5) Both 1 and 2
Q.10 Paging is ____.
(1) Virtual memory
(2) Memory management scheme
(3) Allocation of memory
(4) Deadlock prevention scheme
(5) None of these
Answers
Q.1. (1) In the relational modes, cardinality is termed as number of tuples.
Q.2. (2) Relational calculus is a Non- Procedural language.
Q.3. (2) Through Linked list binary search can be performed efficiently.
Q.4. (1) The view of total database content is Conceptual view.
Q.5. (2) Cartesian product in relational algebra is a binary operator (It requires two operands. e.g., P X Q).
Q.6. (3) DML is provided for manipulation & processing of database.
Q.7. (2) ‘AS’ clause is used in SQL for rename operation (e.g., SELECT ENO AS EMPLOYEE_NO FROM EMP).
Q.8. (4) ODBC stands for Open Database Connectivity.
Q.9. (1) PMTLR stands for Page Map Table Limit Register.
Q.10. (2) Paging is one of the memory-management schemes by which a computer can store and retrieve data from secondary storage for use in main memory.
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