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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.
Q. What is Two Types of Errors? Single-Bit Errors: Merely one bit in the data unit has changed Burst Errors of length 'n': 2 or more bits in the data unit have changed (
Explain the meaning of Disassociation A notification from either a station or an AP that an existing association is terminated. A station should provide this notification befor
Let's consider the network shown in Figure 1 where Snort is deployed. In Figure 1, why is Snort deployed in the DMZ instead of the Internal Network? In Figure 1, say True or
Question: a) Compare Bluetooth and WIFI based networks over the following factors: Data rate, Range, Application Focus, Battery Power, Frequency Band, Security. b) Differe
What is virtual channel? Virtual channel is normally a connection from single source to one destination, although multicast connections are also allowed. The other name for vir
Q. Use of Two-Layer Switch? - Performs at the physical as well as data link layer - A bridge with many ports designed for faster performance - Allocates unique port to ea
How LANs connected to Internet. Doubling every 18 months means factor of four gains in 3 years. In 9 years, gain is then 43 or 64, which leads to 6.4 billion hosts. My intuitio
What is Client/Server? Clients and Servers are part logical entities that work together over a network to accomplish a task. Lots of systems with very dissimilar architectures
Why are packets important in a network?
The original IP address procedure divides host addresses into three base classes. The class of an address calculates the boundary between the network suffix and prefix. The origina
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