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Question:
(a) Explain the usage of the following parts of the IPv4 datagram format.
i. VERS ii. HLEN iii. TOTAL LENGTH iv. SERVICE TYPE v. HEADER CHECKSUM
(b) Name the fields present in IPv4 no longer present in IPv6. Why are these fields no longer required?
(c) The deployment of IPv6 has been slow to date. Why has it been slow? What is needed to accelerate its deployment?
(d) Consider sending a 5000-byte datagram into a link that has a MTU of 1500 bytes. Suppose the original datagram is stamped with the identification number 256. How many fragments are generated? What are their characteristics?
(e) A client requesting an IPv4 address will broadcast messages on the physical subnet to discover available DHCP servers. Will the client send a TCP or UDP packet? To which destination IP address will this packet be addressed?
In RIP why we have HOP count of 15?
Firewall The NAT router allows receiving of number of a data streams. If it receives a transmission in the form of acknowledgement or data streams or error responses from an ex
a) Consider that a host is sending a frame of 1200 bytes to another host found 20 Kilometers away. (Assume that switching delay is negligible) i) Calculate the total latency (
Q. Describe Network security and Internetworking security? Network Security - Layers 5-7 - Securing the localized private domain. Network Administration, File Permissions
what is dce
Categories of traditional Ethernet a) Baseband - digital signals using Manchester encoding b) 10Base2, 10-Base-T, 10Base5, 10Base-FL c) First number signifies data rate
FCS= Frame Check Sequence CRC (Cyclic Redundancy Check) algorithm runs in switch that known as FCS (Frame Check Sequence)
Fragmentation - Wireless environment is very noisy - Corrupt frames must be retransmitted - Large frames must be divided into smaller ones to increase efficiency
Round Trip Time (RTT) and Time Out The size and the complexity of computer networks have grown in past years. To achieve an efficient and reliable transmission some
Bridges The bridge function is to attach separate homogeneous networks. Bridges map the Ethernet address of the nodes residing on each network segment and allow only essential
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