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QUESTION
a) Security is a very crucial component in a Distributed System. Describe three properties of a secure channel.
b) During packet transmission, messages are subdivided into packets. Give two reasons why restricted length of packets are used.
c) Differentiate between Packet and Circuit Switching.
d) Explain the term "Virtual Circuit Packet Delivery".
e) The Network Time Protocol service can be used to synchronize computer clocks. Explain why, even with this service, no guaranteed bound given for the difference between two clocks.
a) Give three UDP features and three TCP features.
b) Give three main sources of overhead.
c) Is it conceivably useful for a port to have several receivers?
d) Define the semantics for and design a protocol for a group form of request reply interaction, for example using IP multicast.
Networks are more frequently being prepared to allow specification of the quality of service needed by users. For example: - a typical voice telephone call may give a QoS para
Communication is the process of sending and receiving data by means of a data cable that is associated externally. Transmission means the transmitting of data from the source to
PROTOCOL SOFTWARE AND ETHERNET WIRING: All wiring methods use identical Ethernet specifications. e.g. they need same message format. They need same CSMA/CD algorithems. They m
What are the concerns of the Physical Layer? Physical layer coordinates the functions needed to transmit a bit stream over a physical medium. a. Physical characteristics of in
It consists of the communication stacks, distributed directories, authentication services, network time, RPC, Queuing services along with the network OS extensions like the distrib
IPv6 packet Format The format of an IPv6 header is shown in figure. Although IPv6 addresses are four times the size of IPv4 address the basic IPv6 header is only twice
Question 1: (a) In networking, there are different possible topologies. Explain the Linear bus, Ring and Star topology along with their advantages and disadvantages. (b) W
Explain the term- Encryption Because all of the user traffic, as well as control traffic, is digitized in second generation systems, it is a relatively simple matter to encrypt
Question: (a) Explain how a Token Ring networks allows sharing of bandwidth (access control). (b) (i) CSMA/CD is not appropriate for wireless communication. Explain wh
Coaxial Applications & Performance - Analog plus digital phone networks - Cable TV networks - Traditional Ethernet LANs - Power line and Home Networks-phone line -
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