单项选择题 Your company has a main office and a branch office. The main office has a domain controller named DC1 that hosts a DNS primary zone. The branc office has a DNS server named SRV1 that hosts a DNS secondary zone. All client computers are configured to use their local server for DNS resolution. You change the IP address of an existing server named SRV2 in the main office. You need to ensure that SRV1 reflects the change immediately. What should you do?（）

单项选择题 Your network contains a DNS server named DNS1 that runs Windows Server 2008 R2. DNS1 is configured as the DNS server for contoso.com. All client computers are configured to use DNS1 for name resolution.From a client computer, you run the Ping tool as shown in the exhibit. (Click the Exhibit button.) You need to ensure that users can use the Ping tool to resolve the IP addresses of internal servers to fully qualified domain names (FQDNs).What should you do？（）

多项选择题 Your company has a main office and a branch office. The branch office has three serves that run a server core installation of windows server 2008. The servers are named server1, server2, server3. You want to configure the event logs subscription on server1 to collect events from server2 and server3. You discover that you cannot create a subscription on server1 another computer. You need to configure a subscription on server1. Which two actions should you perform? （）