Atmel89C51在扩充程式记忆体时，使用那二个PORT组成一个16-Bit的位址汇流排？（） A: PORT0与1 B: PORT0与2 C: PORT0与3 D: PORT1与2

配置交换机端口的Trunk模式正确的是() A: <;H3C>; int g1/0/1[H3C -GigabitEthernet1/0/1] port trunk permit vlan 10[H3C -GigabitEthernet1/0/1]port link-type trunk B: [H3C] int g1/0/1[H3C -GigabitEthernet1/0/1]port link-type trunk[H3C -GigabitEthernet1/0/1] port trunk permit vlan 10 C: [H3C -GigabitEthernet1/0/1] port link-type trunk permit vlan 10 D: [H3C] int g1/0/1[H3C -GigabitEthernet1/0/1] port trunk permit vlan 10[H3C -GigabitEthernet1/0/1]port link-type trunk

创建VLAN与端口加入VLAN的方法正确的是() A: <;H3C>; system-view[H3C]vlan 10[H3C-vlan10] port g 1/0/1 B: <;H3C>;vlan 10[H3C-vlan10] port g 1/0/1 C: <;H3C>; system-view[H3C] port g 1/0/1 D: <;H3C>; system-view<;H3C>;vlan 10<;H3C-vlan10>; port g 1/0/1

根据如下所示的命令，下列描述中正确的是（）。 [Huawei-GigabitEthernet0/0/1]port link-type access [Huawei-GigabitEthernet0/0/1]port default vlan 10 [Huawei-GigabitEthernet0/0/2]port link-type trunk [Huawei-GigabitEthernet0/0/2]port trunk allow-pass vlan 10

8255有三种工作方式:方式0、方式1和方式2,其中方式2能用于( )。 A: PORT A B: PORT B C: PORT C D: A、B、C都可以

Which three flow-control port states lead to enabled link flow control？ （） A:  Receive port： Enabled， Transmit port： Enabled B:  Receive port： Enabled， Transmit port： Desired C:  Receive port： Enabled， Transmit port： Disabled D:  Receive port： Disabled， Transmit port： Desired E:  Receive port： Desired， Transmit port： Desired

在初始状态下，要想把华为交换机接口配置为Hybrid模式，需要使用以下哪条命令？ A: [SW1]port link-type bybrid B: [SW1-Ethernet0/0/1]port hybrid link-type C: [SW1-Ethernet0/0/1]port link-type hybrid D: 无需配置

The port in which crew or passengers go on board the ship is called（）. A: port of call B: port of embarkation C: port of destination D: port of disembarkatio

CIF should be followed by( )． A: port of transshipment B: port of destination C: port of call D: port of shipment

In CIF the risk passes at _______ while the costs are transferred at _________. A: port of shipment, place of destination B: port of shipment, port of destination C: port of destination, place of shipment D: port of destination, port of shipment