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BE EXTC Mumbai university Sem VII REV DEC 2007-2012
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CCN Module : V: TCP/IP ( 28 Marks ) By Kamal Rochlani
N.B: Questions printed in different color were asked in Mumbai University exams.
The Internet Protocol (Q: 1) Write short note on: Internet Protocol (IP) 6
IP Packet (Q: 2) Draw the IP packet format & explain the function of each field in detail. 10 OR Explain the meaning of various fields in the IP header frame format. 10 OR Explain IP with reference to datagram format, IP packet. 06
Conceptual Questions Based on IP Packet
(CQ:1) An IP packet has arrived with the first 8 bits as shown: 01000010 The receiver discards the packet. Why?
(CQ:2) In an IP packet, the value of HLEN is 1000 in binary. How many bytes of options are being carried by this packet?
(CQ:3) In an IP packet, the value of HLEN is 516 and the value of total length field is 002816 . How many bytes of data are being carried by this packet?
(CQ:4) An IP packet has arrived with the first few hexadecimal digits as shown below: 45000028000100000102… How many hops can this packet travel before being dropped? The data belong to what upper layer protocol?
IP Fragmentation & Reassembly (Q:3) What is IP fragmentation? Why is it needed? Explain with an example. 10 OR What is IP fragmentation? How is it implemented? How is the length of a fragment determined? 10 OR Explain IP with reference to IP fragmentation & reassembly. 06
Conceptual Questions Based on IP Fragmentation
(CQ:1) A packet has arrived with an M bit value of 0. Is this the first fragment, the last fragment, or a Middle fragment? Do we know if the packet was fragmented?
(CQ:2) A Packet has arrived with an M bit value of 1. Is this the first fragment, the last fragment, or a Middle fragment? Do we know if the fragment was fragmented?
(CQ:3) A Packet has arrived with an M bit value of 1 and a fragmentation offset value of zero. Is this the First fragment, the last fragment, or a middle fragment?
BE EXTC SEM VII -2- CCN QB By Kamal Rochlani
(CQ:4) A Packet has arrived in which the offset value is 100. What is the number of the first byte? Do we know the number of the last byte? (CQ:5) A Packet has arrived in which the offset value is 100 , the HLEN is 5 and the value of the total Length field is 100. What is the number of the first byte & Last byte?
IP Addressing (Q:4) What is classful IP addressing? Find the maximum addresses provided by each class. 10 OR Write short note on: Classful Addressing / Addresses. 10 OR Explain IP with reference to IP addressing. 06
Conceptual Questions Based on IP Addressing
(CQ:1) Change the following IP addresses from binary notation to dotted-decimal notation.
a) 10000001 00001011 00001011 11101111 b) 11000001 10000011 00011011 11111111 c) 11100111 11011011 10001011 01101111 d) 11111001 10011011 11111011 00001111
(CQ:2) Change the following IP addresses from dotted-decimal notation to binary notation.
a) 111.56.45.78 b) 221.34.7.82 c) 241.8.56.12 d) 75.45.34.78
(CQ:3) Find the error, if any, in the following IP addresses:
a) 111.56.045.78 b) 221.34.7.8.20 c) 75.45.301.14 d) 11100010.23.14.67
(CQ:4) Change the following IP addresses from Binary notation to Hexadecimal notation.
a) 10000001 00001011 00001011 11101111 b) 11000001 10000011 00011011 11111111
(CQ:5) How can we prove that we have 2,147,483,648 addresses in class A? (CQ:6) Find the class of each address:
a) 00000001 00001011 00001011 11101111 b) 11000001 10000011 00011011 11111111 c) 10100111 11011011 10001011 01101111 d) 11110011 10011011 11111011 00001111
(CQ:7) Find the class of each address:
a) 227.12.14.87 b) 193.14.56.22 c) 14.23.120.8
BE EXTC SEM VII -3- CCN QB By Kamal Rochlani
d) 252.5.15.111 e) 134.11.78.56
(CQ:8) Given the network address 17.0.0.0, find the class, the block, and the range of the addresses. (CQ:9) Given the network address 132.21.0.0, find the class, the block, and the range of the addresses. (CQ:10) Given the network address 220.34.76.0, find the class, the block, and the range of the addresses.
Subnet Mask (Q:5) What is the use of Subnet Mask in IP addressing? 5
OR How masking without subnetting is different from that with subnetting? 5
Conceptual Questions Based on Subnet Mask
(CQ:1) Given the address 23.56.7.91 , find the beginning address ( network Address).
(CQ:2) Given the address 132.6.17.85 , find the beginning address ( network Address).
(CQ:3) Given the address 201.180.56.5 , find the beginning address ( network Address). (CQ:4) A network on the internet has a subnet mask of 255.255.240.0, what is the maximum number of hosts it can handle?
CIDR (Q:6) Write short note on Classless Interdomain routing. 5/10 (Q: 7) identify the address class of the following IP addresses: 200.58.20.165; 128.167.23.20, also perform CIDR Aggregation of the following /22 IP addresses: 128.56.24.0/22; 200.96.87.0/22 10
ARP , RARP (Q:8) write short note on ARP & RARP protocols. 10
ICMP (Q:9) write short note on ICMP. 5/10
DHCP (Q:10) write short note on DHCP. 5/10
BE EXTC SEM VII -4- CCN QB By Kamal Rochlani
UDP
(Q: 11) Why does UDP exist? Would it not have been enough to let the user process send the raw IP Packet? 5
TCP , TCP reliable stream service, TCP operation & Protocol (Q: 12) What is Transmission Control Protocol? Explain its role in internet. 10 OR Explain TCP in detail. 10 OR Explain the meaning of various fields in TCP header frame format. 10 (Q: 13) Differentiate TCP & UDP. 10 OR Explain the difference of UDP & TCP socket of server side specially when the client initiates the connection or request to the server. 10
Mobile IP (Q:14) write short note on Mobile IP. 5/10
IPV6 (Q:15) List 10 important features of IPV6 including addressing, flow control, error control, security, mobility, Quality of service. 10
OR Write short note on IPV6 . 10 (Q:16) Compare IPV4 & IPV6 . 5/10
IRP (Q:17) Define : Unicasting & Multicasting 02 (Q:18) Explain Classification of Internet Routing Protocol. 5 OR What is Autonomous System (AS)? Explain why internet is divided into AS? 5
RIP, OSPF,BGP (Q:19) Write short note on :
1. Routing Information Protocol (RIP) 5/ 10
2. Open shortest path First (OSPF) 5/ 10
3. Border Gateway Protocol (BGP) 5/10
BE EXTC SEM VII -5- CCN QB By Kamal Rochlani
Multicast Routing ,Reverse path broadcasting, IGMP , RPM & DVMRP (Q:20) Write short note on :
1. Multicast Routing 5/10
2. Reverse Path Broadcasting 5/10
3. Internet Group Management Protocol (IGMP) 5/10
4. Reverse Path multicasting 5/10
5. Distance Vector Multicast Routing Protocol. ( DVMRP) 5/10
