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Access Networks and Physical Media
Access networks are the physical links(S) that connect an end systems to its edge router. Which is the first router on a path from the end systems. The access networks thus provides the infrastructure to connect the so called customer premises into the network infrastructure. Figure 2.3 shows several types of access links are highlighted in thick shaded lines.
figure Access Network
What are the Communication tools ? Voice mail ? Email ? Fax ? Video conferencing applications
Transmission Control Protocol - TCP is a connection oriented transport layer protocol with built unreliability. It considers a large block of data and breaks it down into segments
It is possible for a datagram to generate ICMP errors after it has been fragmented. For example, suppose that each of two fragments cannot be delivered. Seemingly, this would mean
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Advantage of IP sec Tunnelling Mode IP Sec tunnelling mode has the following advantages: a.Security : Ts IP sec tunnelling mode secure somewhat but not the best. In a
Question : (a) Several techniques are now available for users to connect to the Internet. (i) A modem is commonly used to dial up to the Internet. Why is a modem needed fo
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What is the Network Time Protocol? A protocol that makes sures accurate local timekeeping with reference to radio and atomic clocks located on the Internet. This protocol is c
Question 1: (a) How are IPv4 addresses transformed into IPv6 addresses using IPv4 compatible addresses? (b) Name some of the simplifications that were introduced in IPv6.
DLCI stands for Data Link Connection Identifier. It identifies the local PVC.
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