ExamsSCHOOL OF SCIENCE AND TECHNOLOGY

National Open University Exam Past Question – DAM462 JUNE/JULY 2013 EXAMINATION

NATIONAL OPEN UNIVERSITY OF NIGERIA

14/16 AHMADU BELLO WAY, VICTORIA ISLAND, LAGOS SCHOOL OF SCIENCE AND TECHNOLOGY JUNE/JULY EXAMINATION

COURSE CODE:      DAM462

COURSE TITLE:    INFORMATION TECHNOLOGY (2 UNITS)

TIME ALLOWED:  21/2   HOURS

INSTRUCTION:      ANSWER ANY FOUR QUESTIONS IN ALL

 

1.

  1. a. List and explain vividly any 3 purposes for system models as identified by Schoemaker

(11.5 marks)

  1. List and discuss the 2 major purposes of computer models for farm management (6 marks)

2.

Briefly explain the following terms:

  1. Agricultural system  (3.5 marks) ii.  Implicit Agricultural System                                   (3.5 marks)
    iii.  Explicit Agricultural System                                                                     (3.5 marks)
    iv.  Open Agricultural System                                                                        (3.5 marks)
    v.   Closed Agricultural System                                                                      (3.5 marks)

 

3.

  1. a. Write short note on any three of the following classification of Object i. Simple-objects
  2. Composite-object

iii. Association  –objects

  1. Aggregate-objects (7.5 marks)
  2. State and explain briefly 4 methods of disseminating information in agricultural extension. (10 marks)

4.

  1. a. List and explain briefly any 3 object-oriented modeling methods                         (7.5 marks)
  2. Briefly describe the following:
i. Uni-dimensional process systems (4 marks)
ii. Multi-dimensional process systems (3 marks)
iii. Resource pool (3 marks)

 

  1. a. Differentiate between the Mechanical and Electromechanical age of computer             (8.5 marks)
  2. b. State the three basic set of facts about objects through which the user of a database perceived the database                                                                                                                             (9 marks)
YOU MAY ALSO LIKE  National Open University Exam Past Question – SED 831 MAY/JUNE 2012 EXAMINATION

 

  1. a. State the two models for using agricultural science and technology databases, consider the environment in which the database is used                                                                        (5.5 marks)
  2. b. Explain 4 challenges related to sharing, exchanging and disseminating knowledge and technologies.

(12 marks)

 

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Close