NATIONAL OPEN UNIVERSITY OF NIGERIA

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

COURSE CODE:                                                                              CIT461

COURSE TITLE:                                                                             Internet Architecture and Communications

TIME ALLOWED:                                                                          3 Hours

INSTRUCTIONS:                                                                            Answer any Five (5) Questions

Q1.a     Explain what is meant by Internet technology.                                                                  (5 marks)

    b.   List two different Internet addressing formats.                                                                 (4 marks)

    c.    Tabulate five examples of some domain name suffixes and organization they stand for.                                                (5 marks)

Q2.a     What is TCP?                                                                                                                                      (4 marks)

    b.   List five services of TCP                                                                                                       (10 marks)

Q3.       Outline seven Internet protocol                                                                                          (14 marks)

Q4.a     Explain what is meant by e-business.                                                                                  (4 marks)

    b.   Briefly discuss four E-business security solutions.                                                           (10 marks)

Q5.a     Explain what is meant by Web design                                                                                 (4 marks)

    b.   List four software packages used for website design.                                                       (4 marks)

     c.   For the typical web sites, outline the basic aspects of design.                                          (6 marks)

Q6.a     What is a web browser?                                                                                                       (4 marks)

    b.   List five user interface elements common to most major web browsers.                     (10 marks)

Q7.a     Briefly discuss the two types of simple Internet connection.                                           (5 marks)

    b.   Outline three main equipment required for Internet access.                                           (9 marks)