AMIETE – CS (OLD SCHEME)
Code: AC19 Subject: INTERNET & JAVA PROGRAMMING
Time: 3 Hours
Max. Marks: 100
NOTE: There are 9 Questions in all.
· Question 1 is compulsory and
carries 20 marks. Answer to Q.1 must be written in the space provided for it in
the answer book supplied and nowhere else.
· Out of the remaining EIGHT
Questions answer any FIVE Questions. Each question carries 16 marks.
· Any required data not
explicitly given, may be suitably assumed and stated.
Q.1 Choose
the correct or the best alternative in the following: (2x10)
a. Presentation layer is present in?
(A) TCP/IP (B) OSI model
(C)
Both (A) & (B) (D) none of these
b. User Datagram Protocol (UDP) provides
____________
(A)Reliable service (B) Fast data transfer
(C)Both (D) None of these
c. Which of the following is Class C IP Address?
(A) 125.255.255.254 (B) 193.255.255.254
(C) 190.255.255.254 (D) 225.255.255.254
d. Which is true in context of java?
(A) platform independent (B) multithreaded
(C) robust (D) All of them
e. Which of the following class is called parent
class of all the classes?
(A) Class (B) String
(C) Thread (D) Object
f. Throwable is a
(A) Package (B) Interface
(C) Keyword (D)
class
g.
Synchronize keyword is used before
(A) Variable name (B) Method Name
(C) Class name (D) all of them
h. Which class contains sorted objects?
(A) Vector (B) Hashtable
(C) HashTree (D) Collections
i. Which package contains BufferedInputStream
class?
(A) java.lang (B) java.util
(C) java.io (D) java.net
j.
The character set of java language is
(A) Unicode character set (B) EBCDIC character set
(C)
ASCII character set (D) none of these
Answer any FIVE Questions out
of EIGHT Questions.
Each question carries 16
marks.
Q.2 a.
What are the differences between TCP and
UDP protocol? Explain in detail. (8)
b. What is
IP address? What are the different types of IP Addresses,
discuss about them. (8)
Q.3 a. What do you mean by Client-Server
Architecture? (4)
b. Compare LAN, MAN, WAN. (4)
c. Write short
note on the followings (2*4)
(i) Hypertext (ii) Hypermedia
(iii) HTML (iv)
JSP
Q.4 a. Explain
with the help of diagram(s), working of DNS server. (8)
b. What is
Serialization? Write a program in Java for serializing an object. (8)
Q.5 a. What
do you mean by access modifier. What are the access modifiers available in
java? Discuss about them with skeleton code. (8)
b. What is
runtime and compile time polymorphism in Java.
Discuss about them with appropriate examples. (8)
Q.6 a.
What is output of the following code segment? (4)
class Base
{
public void
show()
{
System.out.println(“in base class”);
}
public void
look()
{
System.out.println(“Look
in base”);
}
}
class Derive extends Base
{
public void
show()
{
System.out.println(“in
derive”);
}
}
public class Test
{
public static
void main(String args[])
{
Base B=new Derive();
B.show();
B.look();
}
}
b. What is
recursion? Write a program for n
factorial using recursion. (6)
c. Explain ‘this’ and ‘super’ keywords in java. (6)
Q.7 a. Write
an applet that echoes “KEY UP” or “KEY DOWN” in the status bar of the window
depending upon whether up or down arrow key is pressed. No action is to be taken for other key
presses. (8)
b. Briefly explain and show the class hierarchy
for the following elements in AWT: Component, Container, Panel, Window, Frame
and Canvas. (8)
Q.8 a. Define
the methods init(), service(), destroy() in the context of servlet. (4)
b. Discuss the life cycle of Applet (6)
c. Compare active, static and dynamic web
documents. (6)
Q.9 a. What
is RMI? Write a sample RMI server and client program. (8)
b. What is Socket? Explain it. (4)
c. Write short notes on Java Beans. (4)