Code: AT-15                                                        Subject: INTERNET & WEB TECHNOLOGY

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 best alternative in the following:                                         (2x10)

a. Procedure used to place a server socket in a passive mode so that it can be used to wait for contact from clients is: 

(A)  bind                                             (B)  listen

(C)   accept                                         (D)  None of the above

b. Transport layer protocol is used for ensuring

(A) Host-to-Host Delivery

(B) Host-to-Router Delivery

(C) Network-to-Network Delivery

(D) End-to-End Delivery

             c.   The domain name systems stores a type with each entry. Type used for application program such as FTP, ping etc. is:

(A)  A                                                (B)  B

(C)  MX                                              (D)  None of the above

             d.   The PAYLOAD LENGTH field in IPv6 specifies

(A)  Size of data carried

(B) Size of data being carried plus size of header

(C)  Size of the header

(D)  None of the above                      

             e.   ICMP is integrated with

(A) TCP                                            (B)  IP

(C)  ARP                                            (D)  None of the above.

             f.    UDP allows support for

(A) Multicast                                      (B)  Broadcast

(C)  Both (A) and (B)                          (D)  None of the above

             g.   In socket (protofamily, type, protocol) procedure type=SOCK_DGRAM is used to specify

(A) Connection-less services              (B)  Connection-oriented services

(C)  Both (A) & (B) (D)  None of the above     

             h.   An Applet gets downloaded to the browser

(A) Every time it is referred to             (B) Only once

(C) Once every day                             (D) None of the above

             i.    XML is derived from

(A) HTML                                         (B) SGML

(C) JAVA                                           (D) None of the above.

             j.    WML script code is stored in ___________ the WML code.

(A)  The same file as                            (B)  A different file from

(C)  between                                       (D)  None of the above

Answer any FIVE Questions out of EIGHT Questions.

Each question carries 16 marks.

Q.2     a.   Could you directly use TCP over Ethernet without using IP? Explain.                  (8)

             b.   What is anonymous FTP? Explain.                                                                     (8)

Q.3     a.   Some network technologies do not include type field in the frame header? How can computer connected to such networks know the type of data in each frame?                                                          (8)

             b.   Why do we store the boundary size of a bit mask?                                              (8)

Q.4           Write short notes on the following:       

(i) MIB variables

(ii) ICMP

(iii) Remote Procedure call.

(iv) JAVA Beans                                                                        (44)

Q.5     a.   How do active web pages work? Explain with example.                                     (9)

     b.   What is locality of reference principle?  (7)

  Q.6     a. What is the key difference between client-server application and web-based application?                (8)

             b.   Discuss how IP and ARP work together.                                                            (8)

Q.7     a.   Explain the various tags inside applet tag of an HTML file.                                  (8)

b.   Which procedure is used to bind a protocol port number to a socket? Explain with example                                                                       (8)

Q.8     a.   How does a computer know whether an incoming frame contains an ARP message?                       (8)

             b.   Why the amount of data carried in a datagram not fixed?                                     (8)

Q.9     a.   Discuss main tags of WML.                                                                               (6)

b.   Discuss EDI architecture in brief.                                                                        (5)

     c.   What are XML parsers? How are they useful?                                                   (5)