<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.hii ni nzuri kama mtandao wako umewekwa ili ujifunge au kukatika baada ya kipindi fulani cha kuto- kutumika; kwa mfano kwa kumtumia isp na unahitaji uwe hai kila wakati unapotumia.  <response>: its used pretty much for remote authentication and accounting... for example, your isp uses this type of service whenever you have to authenticate into their network. 