NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
OCTOBER/NOVEMBER 2014 EXAMINATION

COURSE CODE:                    CIT381    
COURSE TITLE:                    File Processing and Management
TIME ALLOWED:                    2½ Hours
INSTRUCTIONS:                    Answer any Four (4) Questions

Q1.a    Explain a Sorting algorithm to a lay man?                              (5 marks) 
      b.     List any four (4) different sorting techniques.                          (8 marks) 
      c.     Mention three Objectives of File Management System                           (4½ marks)

Q2.a    Write short notes on the following: 
(i)     A File         (ii)     A Record         (iii)    A Field         (3 marks each) 
      b.    Mention and explain any four (4) types of file (4 marks)
       c.     List three (3) File Organisation Criteria                                   (4½ marks)
                    
Q3.a    What is File Management System?                                  (5 marks)  
      b.    Outline three (3) different types of File Directory Structure                       (4½ marks)
      c.     Give the full meaning of the following acronyms:
        (i)    CBIS        (ii)    PDF        (iii)    GIF
        (iv)    FAT        (v)    CPU        (vi)    RAM
        (vii)    RTF        (vii)    VFS                               (1 mark each)

Q4.a    Describe Free Space Management                                  (4 marks)
      b.     Outline three (3) methods used in Free Space Management                       (4½ marks)
      c.     List and explain three measures of protecting systems                      (9 marks) 

Q5.a    List and explain three (3) different ways through which a file could be protected?      (9 marks)
      b.     Identify and explain two (2) tips for management of electronic files              (4 marks)
      c.     List three (3) example of Navigational File Manager                           (4½ marks)

Q6.a    Describe Sorting Algorithm                                      (4 marks)
      b.     List and explain three (3) types of Sorting Techniques                      (9 marks)
      c.     Outline three (3) types of Search                                      (4½ marks)