单项选择题 Your network contains a computer named Computer1. Computer1 is assigned an IP address of 39 / 84 192.168.1.112/26.Your companys corporate policy states that the first usable address in each subnet is allocated to the default gateway.You need to configure the default gateway for Computer1.Which address should you choose？（）

单项选择题 Your company has a branch office that contains 1,000 computers.You need to select a network address that supports 1,000 computers in the same subnet. The solution must minimize the number of unused addresses in the subnet.Which address range should you configure？（）

单项选择题 Your network contains an Active Directory domain named contoso.com. The network is configured to use ISATAP.You have a server named Server1 that runs Windows Server 2008 R2.On Server1, you discover that a tunnel adapter named isatap.contoso.com has a Media State of Media disconnected.You confirm that Server1 has a valid network connection and can query the DNS server.You need to ensure that the isatap.contoso.com tunnel adapter has an IPv6 address.What should you do？（）