A.They run a spell check on host names to ensure accurate routing
B.They convert domain names into IP address
C.Given an IP address,they determine the name of the host that is sought
D.They map individual hosts to their specific IP addresses

A.It designates VLAN 999 for untagged traffic.
B.It blocks VLAN 999 traffic from passing on the trunk.
C.It creates a VLAN 999 interface.
D.It designates VLAN 999 as the default for all unkown tagged traffic.

A.源MAC地址
B.源IP地址
C.源交換機端口
D.目的地IP地址
E.目標端口地址
F.目的MAC地址

A.10.10.0.0/18 subnetted with mask 255.255.255.252
B.10.10.0.0/25 subnetted with mask 255.255.255.252
C.10.10.0.0/24 subnetted with mask 255.255.255.252
D.10.10.0.0/23 subnetted with mask 255.255.255.252
E.10.10.0.0/16 subnetted with mask 255.255.255.252

A.數(shù)據(jù)鏈路
B.網(wǎng)絡
C.物理
D.傳輸

A.SW1#show swithport port-security interface FastEthernet 0/12
B.SW1# show swithport port-secure interface FastEthernet 0/12
C.SW1# show port-secure interface FastEthernet 0/12
D.SW1#show running-config
E.SW1#show port-security interface FastEthernet 0/12

A.最低端口MAC地址
B.端口的優(yōu)先級號和MAC地址
C.VTP修訂號
D.最高的端口優(yōu)先級數(shù)量
E.路徑開銷（cost）

A.RSTP鏈路故障后顯著減少拓撲聚合時間
B.RSTP通過增加備用和備份角色的消費STP端口角色
C.RSTP端口atates被阻塞，丟棄，learing，或轉發(fā)
D.RSTP還使用STP proprsal-協(xié)議序列
E.RSTP使用相同的定時器baseed過程STP上點至點鏈接
F.在點到點鏈路提供比STP更快的傳輸和轉發(fā)

A.VTP
B.802.1Q
C.RSTP
D.STP

A.Port security needs to be globally enabled.
B.Port security needs to be enabled on the interface.
C.Port security needs to be configured to shut down the interface in the event of a violation.
D.Port security needs to be configured to allow only one learned MAC address.
E.Port security interface counters need to be cleared before using the show command.
F.The port security configuration needs to be saved to NVRAM before it can become active.