NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
APRIL/MAY 2019 EXAMINATION

Course: CIT 853 – Internet Concepts and Web Design

Credit Unit: 2

Time Allowed: 2 Hours

Instructions: Answer Question 1 and three (3) other questions

Q1         a. Describe the concept internet?    (8 marks)

b. Write short notes on the following terms:

              (i) CSS    (3 marks)

              (ii) JavaScript   (3 marks)

              (iii) XML  (3 marks)

c. Define HTML   (4 marks)          

              d. How are forms created in HTML?   (4 marks)

Q2         a. Briefly explain the following terms.

1. Web browser     (3 marks)
2. Web server     (3 marks)
3. Database server     (3 marks)
4. HTTP    (3 marks)

              b. Explain the term TCP/IP   (3 marks)

Q3         a. Distinguish between thin client and fat client?   (6 marks)

b. State three advantages of using an Object Oriented Programming Language such as JavaScript.       (6 marks)

              c. List three factors that led to the general acceptability of the WWW?   (3 marks)

Q4.       a. Distinguish between relative and absolute URI path   (4 marks)

              b. Write out a simple HTML code that places JavaScript at the head              (5 marks)

              c. Discuss any three security protocols that ensure the privacy of e-mails.   (6 marks)          

Q5. a. You have just been employed as a web developer in an Order Processing Organisation            

             Using HTML code, design a simple web application to do the following:

1. 1.  display an image     (3 marks)
   2. navigate pages back and forward  (3 marks)
   3. create a hyperlink to an e- mail.   (3 marks)

b. Write of the HTML format structure of a simple table with a caption, 3 columns and 3 rows. (6 marks)