Acustomerwantstoincreasetheperformanceofanexistingserver.Theyarerunningaverynetworkintensiveapplicationandfeelthatincreasingthebandwidthtothenetworkwillfixtheirproblem.
Theyarerunningtwo24-portautosensing10/100hubs，tiedtogetherwithastandardEthernetcrossovercableinport24.
TheserverisrunningIPX.Afteraddingasecondnetworkcardandpluggingonecardintoeachhub，theyhavenotseenanyperformanceimprovement.
Whichtwoarelikelyreasonswhyimplementingnetworkadapterteaminghasnotimprovedperformance？（）