WIRELESS NETWORKS AND MOBILE IP
WIRELESS NETWORKS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Ethernet protocols are slower than IP
|
|
|
Because witches use switches
|
|
|
There might be too many people logged on
|
|
|
They transmit data on ALL ports
|
Detailed explanation-1: -Hubs are at a disadvantage against switches in networking because hubs are unable to differentiate between the devices on the network. If one computer is trying to reach another on a hub-based network, the computer will send the message to every other computer on the network, consuming bandwidth for each transfer.
Detailed explanation-2: -Disadvantages of Hub It does not include mechanisms such as collision detection. It does not operate in full-duplex mode and cannot be divided into the Segment. It cannot reduce the network traffic as it has no mechanism. It is not able to filter the information as it transmits packets to all the connected segments.
Detailed explanation-3: -More importantly, hubs are notorious for wasting bandwidth. Hubs operate at half-duplex, which means data can only flow one way at a time. (As compared to full-duplex, where we can send and receive data between two devices at the same time.)
Detailed explanation-4: -What is a Hub? Hub is a multiport repeater. It has multiple ports that accept Ethernet connections from different network devices. It is considered as the least intelligent device as it neither filters the data, nor it knows where the data is supposed to be sent.