单项选择题
A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port?（）
A.This is a 10 Mb/s switch port.
B.This is a 100 Mb/s switch port.
C.This is an Ethernet port operating at half duplex.
D.This is an Ethernet port operating at full duplex.
E.This is a port on a network interface card in a PC
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相关考题
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单项选择题
Whichspreadspectrumtechnologydoesthe802.11bstandarddefineforoperation?（）
A.IR
B.DSSS
C.FHSS
D.DSSS and FHSS
E.IR, FHSS, and DSSS -
多项选择题
Whataretwosecurityappliancesthatcanbeinstalledinanetwork?(Choosetwo.)（）
A.ATM
B.IDS
C.IOS
D.IOX
E.IPS
F.SDM -
多项选择题
Whataretworecommendedwaysofprotectingnetworkdeviceconfigurationfilesfromoutsidenetworksecuritythreats?(Choosetwo.)（）
A.Allow unrestricted access to the console or VTY ports.
B.Use a firewall to restrict access from the outside to the network devices.
C.Always use Telnet to access the device command line because its data is automatically encrypted.
D.Use SSH or another encrypted and authenticated transport to access device configurations.
E.Prevent the loss of passwords by disabling password encryption.
