单项选择题
Which command enables RSTP on a switch？（）
A.spanning-tree mode rapid-pvst
B.spanning-tree uplinkfast
C.spanning-tree backbonefast
D.spanning-tree mode mst
相关考题
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单项选择题
Why would a network administrator configure port security on a switch（）。
A.to prevent unauthorized Telnet access to a switch port
B.to limit the number of Layer 2 broadcasts on a particular switch port
C.to prevent unauthorized hosts from accessing the LAN
D.to protect the IP and MAC address of the switch and associated ports
E.to block unauthorized access to the switch management interfaces over common TCP ports -
单项选择题
Hosts on the same VLAN can communicate with each other but are unable to communicate with hosts on different VLANs. What is needed to allow communication between VLANs（）。
A.a switch with a trunk link that is configured between the switches
B.a router with an IP address on the physical interface that is connected to the switch
C.a switch with an access link that is configured between the switches
D.a router with subinterfaces configured on the physical interface that is connected to the switch -
单项选择题
There are no boot system commands in a router configuration in NVRAM.What is the fall back sequence that router will use to find an ios during reload？（）
A.Flash，TFTPserver，ROM
B.Flash，NVRAM，ROM
C.ROM，NVRAM，TFTPserver
D.NVRAM，TFTPserver，ROM
E.TFTPserver，Flash，NVRAM
