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TWO DIFFERENT KINDS OF TOPOLOGIES:
LOGICAL TOPOLOGY:
It is described by the specific network technology.
PHYSICL TOPOLOGY:
It relays on the wiring scheme.
NETWORK INTERFACE CARD AND WIRING SCHEMES:
Figure
To allow modifying the wiring without modifying the interface hardware, NICs support multiple wiring methods. it is given in the figure below.
Simplicity The advantage of this approach is the simplicity of receiver buffering. The receiver need not buffer out of order packets the sender must maintain the upper an
Explain use of perimeter area?
Two hosts are connected by a path made of four links as shown in the figure below. The links are of data rate R = 2 Mbps each. Host A has a file of size F = 1,000,000 bytes to tran
Consider the following network example. Suppose that the distance vector (DV) routing algorithm is used to compute the distance between nodes. (a) Show the procedure of nod
What Automatic Repeat Request (ARQ)? Error control is both error detection and error correction. It allows the receiver to inform the sender of any frames lost or damaged in tr
Cisco Router architecture Overall architecture of Cisco 2600 router is given below The Following components of routers are 1. WIC slots 2. communications
what are the applications of different encoding schemes
A communication protocol is an agreement which specifies a common language two computers use to exchange messages. For instance, a protocol denotes the exact format and meaning of
Describe the term - License-free operation Users would prefer to buy and operate wireless LAN products without having to secure a license for the frequency band used by the LAN
Distance vector-based routing algorithms (also called as Bellman-Ford algorithms) pass periodic copies of a routing table from router to router. Regular updates among routers commu
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