COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK TOPOLOGIES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Multicasting
|
|
|
Broadcasting
|
|
|
Unicasting
|
|
|
Selective Forwarding
|
Detailed explanation-1: -A network hub is a node that broadcasts data to every computer or Ethernet-based device connected to it. A hub is less sophisticated than a switch, the latter of which can isolate data transmissions to specific devices. Network hubs are best suited for small, simple local area network (LAN) environments.
Detailed explanation-2: -The hub simply takes the pulse it receives and multiplies it – that is, sends it to all other ports. For example, if A sends a frame to B, the hub will send this frame to B, C and D – all ports except A’s port.
Detailed explanation-3: -Hubs connect multiple computer networking devices together. A hub also acts as a repeater in that it amplifies signals that deteriorate after traveling long distances over connecting cables. A hub is the simplest in the family of network connecting devices because it connects LAN components with identical protocols.