Which of the following commands is used to observe the current state of the routing table？（）

单项选择题Anetworkadministratorhasa10base2network.Acardisprovidedthathasboth10base2and10base5ports.WhichofthefollowingtypesofcablesshouldbeselectedinSMITduringconfigurationoftheadapter？（）

A.TP
B.BNC
C.DIX
D.CAT5

单项选择题WhichofthefollowingfilesshouldbeusedtoaltertheorderofwhichDNSserversgetqueriedfirst？（）

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

单项选择题Whenchoosingahostname，othermachineswillassociatethenamewith（）。

A.the IP address
B.the MAC address
C.inetd
D.port 80

单项选择题Anadministratorhasprovideda24bitnetmask.Whichofthefollowingoptionsindicatesthenumberofhostaddressesthatareavailableinanetwork？（）

A.24
B.126
C.128
D.254

单项选择题AclassBnetwork129.35has10subnets.Whichofthefollowingoptionsisthecorrectsubnetmask？（）

A.255.255.128.0 （11111111.11111111.10000000.00000000）
B.255.255.192.0 （11111111.11111111.11000000.00000000）
C.255.255.224.0 （11111111.11111111.11100000.00000000）
D.255.255.240.0 （11111111.11111111.11110000.00000000）