Your company has a main office and a branch office. The company has a single-domain Active Directory forest. The main office has two domain controllers named DC1 and DC2 that run Windows Server 2008. The branch office has a Windows Server 2008 read-only domain controller (RODC) named DC3. All domain controllers hold the DNS Server role and are configured as Active Directory-integrated zones. The DNS zones only allow secure updates. You need to enable dynamic DNS updates on DC3. What should you do()
A. Run the Ntdsutil.exe > DS Behavior commands on DC3.
B. Run the Dnscmd.exe /ZoneResetType command on DC3.
C. Reinstall Active Directory Domain Services on DC3 as a writable domain controller.
D. Create a custom application directory partition on DC1. Configure the partition to store Active Directory- integrated zones.
甲公司开发写字楼一幢,于2010年5月5日将其中一层卖给乙公司,约定半年后交房,乙公司于2010年5月6日申请办理了预告登记。2010年6月5日甲公司因资金周转困难,在乙公司不知情的情况下,以该层楼向丙银行抵押借款并登记。现因甲公司不能清偿到期债务,丙银行要求实现抵押权。根据物权法律制度的规定,下列表述中,正确的是()。
A. 抵押合同有效,抵押权设立
B. 抵押合同无效,但抵押权设立
C. 抵押合同有效,但抵押权未设立
D. 抵押合同无效,抵押权未设立