Which of the following class addresses is reserved for multicast？（）

单项选择题WhichofthefollowingcommandswillNOTdeterminetheslotlocationofanEthernetadapterinasystem？（）

A.lsattr -El
B.lsdev -C
C.prtconf
D.lscfg -l

单项选择题Whichofthefollowingfilesshouldcontainthestatement hosts=local，bind ？（）

A./etc/hosts
B./etc/irs.conf
C./etc/netsvc.conf
D./etc/resolv.conf

单项选择题Amachinemusthavethemostdirectaccesspossibletotwodifferentnetworks.However，itcannotactasarouterbetweenthenetworks.Whichofthefollowingarrangementsismostappropriatetofacilitatethemachine’saccessibility？（）

A.ipforwarding turned on and two adapters
B.One adapter， with a route to a default gateway
C.An adapter in each network， and ipforwarding off
D.An adapter in each network， with a route only to the default gateway

单项选择题Inordertoincreasereliability，minimizecollisionsandestablishalargenumberofsystemsonanEthernetsegment，whichofthefollowingoptionsshouldbeselectedfortheEthernetnetwork？（）

A.10BaseT
B.Switched 10BaseT
C.Switched 100BaseT Half-Duplex
D.Switched 100BaseT Full-Duplex

单项选择题Whichofthefollowingclassnetworkscontains65，534hosts？（）

A.Class A
B.Class B
C.Class C
D.Class D