NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
JANUARY/FEBRUARY 2013 EXAMINATION

COURSE CODE:        DAM 461

COURSE TITLE:       STATISTICAL DATABASE SYSTEM

CREDIT UNIT:         2 CREDIT UNITS

TIME:                         2 HOURS

INSTRUCTION:        ANSWER ANY FOUR QUESTIONS IN ALL

1a.       Enumerate five (5) benefits of the Airport Statistical Data Management System. [7¹/₂ marks]

1b.       Write short note on any five (5) flight data available for statistical analysis.        [10 marks]

2a.       Write short notes on any five (5) components of DB environment.                                    [10 marks]

2b.       Summarise any five (5) functions of a current generation DBMS.                           [7¹/₂ marks]

3a.       Differentiate between Data Definition Language (DDL) and Data Manipulation Language (DML).     [7 marks]

3b.       State the Advantages of Using a DBMS.                                                                   [10¹/₂ marks]

4a.       Discuss the “The Database System Environment”.                                                   [7 marks]

4b.       Describe the three-schema Architecture.                                                                  [10¹/₂ marks]

5a.       Highlight eight (8) Features and Functionalities of the STAT (Statistic).             [8¹/₂marks]

5b.       List and explain the six (6) General Database Naming Conventions.                      [9 marks]

6a.       Differentiate between Data and Information.                                             [10 marks]

6b.       Define Database Management System.                                                                     [7¹/₂ marks]