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Tree Topology

                                                          In this topology, nodes are connected as branches of a
                                                          tree where hub acts as a root node. It is very simple in
                                                          nature as it is easier to add or remove the faulty nodes.
                                                          But its major disadvantage is that if the root node fails to
                                                          operate, the entire network is inoperable.
                             Tree Topology
                 Mesh Topology

                 In this topology, every single node in a network is connected to

                 all the other nodes or computers in the network. There is minimal
                 chances of breakdown in this topology. This topology is mostly
                 used in LANs.

                     NETWORK ARCHITECTURE
                                                                                                  Mesh Topology
                 The network architecture defines the overall design of the computer
                 network. There are two types of network architectures.
                 Peer-to-Peer Network

                 It is a network of two or more computers that uses the same
                 type of program to share the data.  Each computer is considered

                 to have equal responsibility and acts as a server to the other
                 computers in the network. It works well in small environment.
                                                                                            Peer-to-Peer Network
                                                     Client-Server Network

                             Internet                It is a network in which one computer is designated as the
                    Clients
                                                     server and all the other computers connected on the network
                                                     are called the clients. The clients can request for the services
                       Client-Server Network         from the server. This is called the client-server network.

                     WIRELESS NETWORKING TECHNOLOGY

                 In a wireless networking technology, no wires or physical media is used for connecting computers.
                 It uses electromagnetic waves like infrared, microwaves and radio waves for transmission of the
                 data. The choice of technology depends on the distance and speed of transmission. There are

                 two types of wireless technologies named Wi-Fi and Bluetooth.
                 Wi-Fi

                 Wi–Fi is the most popular wireless communication technology used for homes,
                 private business LANs and public hotspots. A Wi-Fi enabled device such as a
                 PC, video game console, mobile phones or MP3 player can connect to the
                 Internet when it comes within the range of a wireless network. Wi-Fi allows us
                                                                                                           Wi-Fi
                 to deploy local area networks without wires thus reducing the cost of network
                 expansion.


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