West Bengal Institute of Technology (WBIT) 2010-7th Sem B.Tech Computer Science and Engineering Computer Science -Visual Programming and Web Technology - Question Paper
Name : ......................................................................
Roll No. : ....................................................................
Invigilators Signature :...............................................
' CS / B. TECH (CSE) / SEM-7 / CS-703 / 2010-11
2010-11
VISUAL PROGRAMMING AND WEB TECHNOLOGY
Time Allotted : 3 Hours Ful1 Mcrks ' 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP - A ( Multiple Choice Type Questions )
1. Choose the correct alternatives for the following : 10 x 1 = 10
i) Full form of XML is
a) Xtensible Makeup Language
b) Extensible Markup Language . c) Extended Makeup Language
d) None of these..
. i
ii) HTTP is a
a) Stateless Protocol
b) State full Protocol
c) State is not important for HTTP Protocol
d) None of these.
iii) Which one of the following is not in DHTML ?
a) HTML b) AJAX
c) CSS d) JavaScript.
iv) Which one of the following is true ?
a) HTML works at server side
b) Apache is an application server
c) Tomcat is an Web Container
d) CSS is used to validate data.
v) When using a form-based authentication, which action must be used in the login form ?
a) j_security_check b) j_gt_user
c) j_login_check d) jlget_security.
ix) What is a benefit of bean pooling in an EJB container ?
a) It improves the portability between databases
b) It reduces the number of database connections
c) It provides between support to object-oriented databases ,
d) . It reduces the memory allocation and garbage-
collection cycles.
x) Which items provides tools to allow the formatting of currency and data information according to local conventions ?
a) java.text package
b) java.util.Locale class
c) javla.lang.String class
d) Pluggable look and feel in Swing.
GROUP -B ( Short Answer Type Questions )
Answer any three of the following. 3x5= 15
2. a) What do you mean by event driven programming ?
/
b) What is OLE in VB ? What are the differences between variables and variants in VB ? 2 + (1 + 2 )
3. a) Differentiate between MsgBox statement and MsgBox ( )
function.
b) Explain the dynamic array creation in VB. What is the significance of Preserve keyword ? 2 + ( 2 + 1 )
4. a) What do you mean by URL ? Describe its different parts,
b) How does a web browser communicate with the web
server ? ( 1 + 2 ) + 2
5. a) What do you mean by World Wide Web ?
b) Describe the different kinds of request-response methods used by the HTTP protocol. 2 + 3
6. What is RMI ? Briefly describe RMI architecture. 5
GROUP -C ( Long Answer Type Questions )
Answer any three of the following. 3x15 = 45
7. a) What arc the uses of option explicit and option
implicit keywords in VB ?
b) What do you understand by control array in VB ? How to create one ? .
c) Explain the difference between cvdn procedure and function procedure. Give examples in VB.
d) Write a VB program to find the GCD of given two numbers using function procedure. 3 + 3 + 4 + 5
8. a) What is 2-tier' web architecture ? How is it different
from 3-tier architecture ?
b) What is the difference between static and dynamic web pages ?
c) Design a HTML page with the following features -Hyperlink, navigation buttons, tables, forms.
d) Describe the user-defined data types in VB with suitable example.
9. a) How many types of Arrays are available in VB ? What is
a dynamic array ? Explain the keyword Preserve and Redim. Explain the use of option explicit.
b) What is the difference between enabled and disabled property of a control ? Describe procedure in detail (Sub procedure, Function procedure and Property procedure).
c) Write a VB program to accept a value from textbox and check whether number is prime or no-prime.
10. a) What is the advantage and disadvantage of visual
programming ?
b) Discuss the various data types used in visual basic with example.
c) Explain Msgbox and Inputbox with example.
d) Explain in brief with example for the following procedure used in VB 6.0: 4 + 4 + 3 + 4
(i) MDI (ii) OLE
11. a) What is JSP ?
b) What is the difference/between JSP and ASP ?
c) Explain the Life cycle of JSP.
d) What is a Servlet ? Explain the life cycle of a Servlet ?
2 + 4 + 4 + 5
7301 7
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