Either a Bus topology or Wireless repeating, depends on how the question is stated...
Repeaters are used on many different network types. Strictly speaking, each port on a network switch is a repeater. Repeaters are not common on consumer networks, except for some few who use a wireless repeater to extend the coverage of their Wi-Fi network.
By far the most common use of repeaters is in fiber optic networks. The glass used in fiber optic cables is not perfectly transparent, so the further the light signal travels, the dimmer it becomes. Repeaters can be used to boost the signal. On the low end, repeaters might be spaced eevry few miles, while some of the latest (and most expensive) fiber can transmit a signal well over 100km without the need for a repeater.
Either a Bus topology or Wireless repeating, depends on how the question is stated...
Repeaters are usually used in coaxial based ethernet networks. For this purpose they are used to extend the length of a network segment. For example, in a 10base2 ethernet network the maximum length of a segment is 180 meters. A repeater could join two segments together to increase the length of the network and the number of clients in the network. In today's modern networks you will see neither coaxial networks nor repeaters in a LAN. Repeaters are used for DSL transmissions, but not for LANS.
Yes - a repeater would be used to extend the distance of the LAN segment. Repeaters were used primarily in coaxial copper networks but are rarely found in LANs anymore.
Signal repeaters are generally used in the telecommunication and electronics industries. There can be passive radio signal repeaters, multi-port repeaters, optical signal repeaters for optical fiber and digipeaters which repeat packet data.
A repeater connects two segments of your network cable. It retimes and regenerates the signals to proper amplitudes and sends them to the other segments. When talking about, Ethernet topology, you are probably talking about using a hub as a repeater. Repeaters require a small amount of time to regenerate the signal. This can cause a propagation delay which can affect network communication when there are several repeaters in a row. Many network architectures limit the number of repeaters that can be used in a row. Repeaters work only at the physical layer of the OSI network model. If you more information you can visit website :http://www.iyogibusiness.com
Switches
wireless ones
Cat 5E
Ethernet_II Network + Guide to Networks (version 5) pg. 217
Because - even in fibre-optic cable, distance brings attenuation of the signal. Repeaters boost the data stream to provide a constant signal level.
Cat 5E or Cat5
radio waves (part of the electromagnetic spectrum)