摩擦学面临挑战
Your company has a main office and one branch office. All servers run Windows Server 2003 Service Pack 2 (SP2). The relevant portion of the network is configured as shown in the exhibit. (Click the Exhibit button.) All computers in the branch office are configured to use DNS2 as their DNS server.Users in the branch office report that they cannot resolve the IP addresses for servers on the Internet. You run Dnscmd as shown in the following Command Prompt window.You need to ensure that users in the branch office can resolve the names of Internet hosts. What should you do on DNS2?（） ["Remove the root zone. ","Clear the DNS server cache. ","Configure the contoso.com zone as a primary zone. ","Configure the adatum.com zone as a secondary zone and DNS1 as the master DNS server."]
人体视野及视野范围
发现有人在低压设备上触电，当触电人离电源开关近时，应怎样使触电者脱离电源？
Which two differentiators make RSTP the preferred protocol for preventing Layer 2 loops in a switchednetwork environment?（） (Choose two.) [" Features such as UplinkFast and BackboneFast are compatible with RSTP."," An RSTP that is based on Cisco products generally performs better than the Cisco proprietary 802.1D enhancements."," Cisco proprietary enhancements are not transparent."," Information about port roles is sent to all switches."," RSTPs that are based on Cisco products require no additional configuration."]
蜀汉
