单项选择题 You have a server named Server1 that runs Windows Server 2012 R2. You plan to create a storage pool that will contain a new volume. You need to create a new 600-GB volume by using thin provisioning. The new volume must use the parity layout. What is the minimum number of 256-GB disks required for the storage pool?（）

单项选择题 You have a Hyper-V host named Server1 that runs Windows Server 2012 R2. Server1 has the virtual switches listed in the following table. You create a virtual machine named VM1.VM1 has two network adapters. One network adapter connects to vSwitch1. The other network adapter connects to vSwitch2.You configure NIC teaming on VM1. You need to ensure that if a physical NIC fails on Server1, VM1 remains connected to the network. What should you do on Server1?（）

单项选择题 Your network contains an Active Directory forest named contoso.com. The forest contains two domains named contoso.com and child.contoso.com. The forest contains two domain controllers. The domain controllers are configured as shown in the following table. You need to ensure that DC2 can provide authoritative responses for queries to the contoso.com namespace. What should you do?（）