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(luò)
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(jí)號(hào)和MAC地址
C.VTP修訂號(hào)
D.最高的端口優(yōu)先級(jí)數(shù)量
E.路徑開(kāi)銷(xiāo)（cost）

A.RSTP鏈路故障后顯著減少拓?fù)渚酆蠒r(shí)間
B.RSTP通過(guò)增加備用和備份角色的消費(fèi)STP端口角色
C.RSTP端口atates被阻塞，丟棄，learing，或轉(zhuǎn)發(fā)
D.RSTP還使用STP proprsal-協(xié)議序列
E.RSTP使用相同的定時(shí)器baseed過(guò)程STP上點(diǎn)至點(diǎn)鏈接
F.在點(diǎn)到點(diǎn)鏈路提供比STP更快的傳輸和轉(zhuǎn)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.

A.IR
B.DSSS
C.FHSS
D.DSSS and FHSS
E.IR, FHSS, and DSSS

A.802.1Q native VLAN frames are untagged by default.
B.802.1Q trunking ports can also be secure ports.
C.802.1Q trunks can use 10 Mb/s Ethernet interfaces.
D.802.1Q trunks require full-duplex， point-to-point connectivity.
E.802.1Q trunks should have native VLANs that are the same at both ends.

A.172.31.17.4/30
B.172.31.51.16/30
C.172.31.64.0/18
D.172.31.80.0/22
E.172.31.92.0/22
F.172.31.192.0/18