BABSc, B.Com & BCA Questions _III - Nalanda Open University
BABSc, B.Com & BCA Questions _III - Nalanda Open University
BABSc, B.Com & BCA Questions _III - Nalanda Open University
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<strong>Nalanda</strong> <strong>Open</strong> <strong>University</strong><br />
Annual Exam-2010,<br />
Bachelor in <strong>Com</strong>puter Application, Part-<strong>III</strong><br />
Paper-XVI (CS-69)<br />
Time: 3Hrs Full Marks: 75<br />
Answer any five questions. All questions are of equal marks.<br />
1. What are the various IP address classes? How many bits are used to represent the<br />
network ID and host ID part of these classes?<br />
2. Draw and explain how TCP handles the lost acknowledgement segment and the<br />
corrupted segment.<br />
3. Explain 3-way handshake mechanism used in TCP protocol.<br />
4. How is domain name mapped with IP address? Use diagram to explain the<br />
process.<br />
5. What is Ethernet? How does it work? Also explain the fields of Ethernet Frame<br />
Format.<br />
6. What is the significance of hierarchical naming scheme? Differentiate among<br />
following addresses and their meaning with reference of DNS :<br />
i. www.nou.edu<br />
ii. www.nou.ac.in<br />
iii. www.nou.ernet.in<br />
iv. www.nou.nic.in<br />
7. How does TCP handle time out and retransmission? Explain the need for<br />
multiplexing at the transport layer.<br />
8. Explain difference between the OSI reference model and the TCP/IP model.<br />
9. How does FTP work? Explain the connection establishment procedure between a<br />
client and a server.<br />
10. Differentiate between the following :<br />
a. IPV4 and IPV6<br />
b. TCP and UDP<br />
c. Multicasting and Broadcasting
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