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问题 填空题

以下是路由器Router和Switch1的部分配置信息，请解释部分命令的意义。
Router(config)#interface fastEthernet1/0.1
Router(config-subif)#encapsulation isl 11 (1)
Router(config-subif)#ip address 10.1.1.1 255.255.255.0 (2)
Router(config-subif)#exit
Router(config)#interface fastEthernet1/0.2
Router(config-subif)#encapsulation isl 12
Router(config-subif)#ip address 10.1.2.1 255.255.255.0
Router(config-subif)#exit
Router(config)#interface fastEthernet1/0.3
Router(config-subi f)#encapsulation isl 13
Router(config-subif)#ip address 10.1.3.1 255.255.255.0
Router(config-subif)#exit
Router(config)#ip routing (3)
[交换机Switch1的部分配置信息]
Switch1(config)#vlan database (4)
Switch1(vlan)#vlan 11 (5)
Switch1(vlan)#vlan 12
Switch1(vlan)#vlan 13
Switch1(vlan)#exit
Switch1(config)#interface fastEthernet0/0
Switch1(config-if)#switchport mode trunk (6)
Switch1(config-if)#switchport trunk allowed all (7)
Switch1(config-if)#exit
Switch1(config)#interface fastEthernet0/1
Switch1(config-if)#switchport mode trunk
Switch1(config-if)#switchport trunk a110wed a11
Switch1(config-if)#exit
Switch1(config)#interface fastEthernet0/2
Switch1(config-if)#switchport mode trunk
Switch1(config-if)#switchport trunk allowed all
Switch1(config-if)#exit

答案

参考答案：进入VTP配置子模式

选择题

下列产业活动之间的联系属于生产协作的是[ ]

A、汽车业和造船业

B、货运公司和大型超市

C、研发机构和生产厂

D、空调厂和整车厂

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单项选择题

Can you believe it There’s a world paper shortage. There’s a national bottle shortage, and we’re running out of raw materials like timber and tin -- or so the papers say. Well, I’ve just emptied my shopping basket after my weekly shopping trip and it was full of things made from these scarce materials. Half of what I’d bought I threw away at once; all those unnecessary paper bags, plastic bags, fresh wrapping paper and old newspapers they put the food in nowadays.
Modern packaging makes shopping cleaner and more convenient, but at what cost Every time you throw away a paper bag you’re throwing away part of a tree -- and trees don’t grow overnight! At this rate there soon won’t be any trees left, and then what shall we do
Perhaps we’ll learn to do what my mother did. She used to keep a store of paper bags in a kitchen drawer and use them again and again for her shopping. Most goods were sold loose in those days. And the shopkeeper weighed out the amount you wanted. Of course, liquid goods have always been sold in bottles or cans, but why can’t we use these containers more than once If we re-use all our bottles we would save on the raw materials and energy needed to make new ones. At the moment 90% of our rubbish is just dumped. It’s time we started to think seriously about the growing shortage of raw materials in the world today.

What problem does the author find from the newspapers
[A] There’s paper shortage. [B] There’s timber shortage.
[C] There’s raw material shortage. [D] There’s tin shortage.
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