单项选择题 Your network contains a database server that runs Windows Server 2003 Standard Edition Service Pack 2 (SP2). The server has 1 GB of RAM and a single hard disk. Queries against the databases on the server are very slow. You discover that the hard disk on the server is very active. You are evaluating whether to add RAM to the server. You need to use System Monitor to find out whether adding RAM will decrease disk activity. Which performance counter should you monitor? （）

单项选择题 Your network contains a server named Server1 that runs Windows Server 2003 Service Pack (SP2). You install a new network adapter on Server1. You need to view the media access control (MAC) address for the new network adapter. What should you do? （）

单项选择题 Your network contains a database server named Server1. Server1 runs the 32-bit version of Windows Server 2003 Enterprise Edition Service Pack 2 (SP2) and has 16 GB of RAM. On Server1, you open Task Manager and discover that the total physical memory shows only 4 GB of RAM. You need to ensure that Server1 has access to all 16 GB of RAM. What should you do?（）