单项选择题 You have a server named Server1 that runs Windows Server 2012 R2. Server1 has the Hyper-V server role installed. An iSCSI SAN is available on the network. Server1 hosts four virtual machines named VM1, VM2, VM3, and VM4. You create a LUN on the SAN to host the virtual hard drive files for the virtual machines. You need to create a 3-TB virtual hard disk for VM1 on the LUN. The solution must prevent VM1 from being paused if the LUN runs out of disk space. Which type of virtual hard disk should you create on the LUN?（）

问答题 You have a Hyper-V host named Server1 that runs Windows Server 2008 R2. All of the virtual machines on Server1 use VHDs. You install the Hyper-V server role on a server named Server2 that runs Windows Server 2012 R2. Server2 has the same hardware configurations as Server1. You plan to migrate the Hyper-V host from Server1 to Server2 by using the Windows Server Migration Tools. In the table below, identify what can be migrated by using the Windows Server Migration Tools. Make only one selection in each row. Each correct selection is worth one point.

单项选择题 Your network contains an Active Directory forest. The forest contains a single domain named contoso.com. The domain contains four domain controllers. The domain controllers are configured as shown in the following table. All domain controllers are DNS servers. You plan to deploy a new domain controller named DC5 in the contoso.com domain. You need to identify which domain controller must be online to ensure that DC5 can be promoted successfully to a domain controller. Which domain controller should you identify?（）