WEB SYSTEM & TECHNOLOGIES BS IT 6th Term 2017 Past Paper UOS

University of Sargodha

B.S. 6th Term Examination 2017

Subject: I.T.
Paper: Web System & Technologies (IT-3548)

Time Allowed: 2.30 Hours
Maximum Marks: 80

Objective Part

(Compulsory)

Q. No.1. Write short answers of the following in 2-3 lines on your answer sheet. (2*16)

i. What four components are needed to create a fully dynamic web page?
ii. What does HTML stand for?
iii. Why does the name MySQL contain the letters SQL?
iv. What do the IP address 127.0.0.1 and the URL http://localhost have in common?
v. Why is it better to use a program editor instead of a plain text editor?
vi. What tag is used to cause PHP to start interpreting program code? And what is the short form of the tag?
vii. Which symbol is used to preface all PHP variable names?
viii. How can you incorporate one PHP file within another?
ix. How is an object different from a function?
x. How do you create a new object in PHP?
xi. What is the difference between a numeric and an associative array?
xii. What is the main benefit of the array keyword?
xiii. Name the main disadvantage of working on a remote web server.
xiv. What are the two types of comment tags?
xv. Which character must be placed at the end of every PHP statement?
xvi. What can a variable store?

Subjective Part

(4*12=48)

Q. NO. 2: PHP and JavaScript are both programming languages that generate dynamic results for web pages. What is their main difference, and why would you use both of them?

Q. NO. 3: What command would you use to back up the database publications to a file called publications.sql?

Q. NO. 4: Why is the md5 function a powerful security measure?

Q. NO. 5: What JavaScript command would you use to replace the current document with the main page at the oreilly.com website?

Q. NO. 6: How do if and while statements interpret conditional expressions of different data types?

Q. NO. 7: How can you make something happen when the mouse pointer passes over and then out of an object?