单项选择题
A. One forest and two domains.
B. One forest and three domains.
C. One forest and four domains.
D. Two forests and three domains.
E. Two forests and four domains.
多项选择题 You are designing the IP addressing scheme for the new Barcelona office. Which network address or addresses are valid for your design？（）
单项选择题 You are designing the placement of the PDC emulator role to meet the business and technical requirements. In which location should you place the PDC emulator role？（）
单项选择题 You are designing a DNS infrastructure to meet the Internet name resolution requirements. What should you do？ （）