How does a switch respond when it rece

1、How does a DHCP server dynamically ass

How does a DHCP server dynamically assign IP addresses to hosts?（）AAddresses are permanently assigned so that the host uses the same address ...

2、How does a switch respond when it rece

How does a switch respond when it receives a message?（）A It reads the Layer-5 information and sends the message directly to the intended com...

3、In a switched environment, what does t

In a switched environment, what does the IEEE 802.1Q standard describe?（）Athe operation of VTPBa method of VLAN trunkingCan approach to wireless LAN communicationDthe process for root bridge selectionEVLAN pruning vla

4、How does a system

How does a system administrator add a new user to a system？（）AmkuserBcruserCadduserDedit /etc/password

5、When does a transact

When does a transaction complete?（）Awhen a DELETE statement is executed Bwhen a ROLLBACK comma...

6、24． How does a cook make the balance o

24． How does a cook make the balance of food?A He tries to cook a lot of meat．B He tries to cook meat， vegetables， bread and sweet food for a big meal．C He tries to make the food delicious．