单项选择题

A、PDSCHDMRS有两种资源映射类型:type1和type2。
B、对于1个symbol,type1最多容纳4个DMRS端口,type2最多容纳6个DMRS端口。
C、对于2个symbol,type1与type2最多容纳的DMRS端口数分别为8和12。
D、DMRS会和CSI-RS(除了用于Mobility的)发生碰撞。
相关考题

未知题型 在用户登录成功后,UNIX系统运行的第一个程序是(62)。

未知题型 You are the administrator of a SQL Server 2000 computer. The server contains confidential information about contracts on which your company has placed bids.Company policy requires that bid information be removed permanently from the database one year after the bid closes. You need to comply with this policy and minimize server overhead.What should you do?

未知题型 You are the administrator of two Microsoft Windows 2000 computers. One computer is running Internet Information Services (IIS), and the other is running SQL Server 2000. Company partners need to connect by means of the Internet and query data stored on the SQL Server computer. Some of these partners have computers that do not use Microsoft operating systems or Web browsers.You need to configure the IIS and SQL Server 2000 computers to allow access to data by means of the IIS virtual directory. IIS uses Basic Authentication to allow access to the virtual directory.Only company partners should have access to the SQL Server computer by means of the Internet. The partners should not be allowed to make ad hoc queries. You want to be able to audit successful and failed logins to the SQL Server computer.You want to allow the partners access to the SQL Server computer while keeping your security scheme as simple as possible. Which two actions should you take? (Each correct answer represents part of the solution. Choose two.)