单项选择题 You are the administrator of ExamSheet.nets network.  Your Windows 2000 Professional computer has a Pentium II 400-HHz processor, 128 MB of RAM, and IDE hard disk. After installing a new digital imaging application you notice that your computer is responding very slowly and you are experiencing delays in processing graphics files. You want to determine if the performance problems are being caused by a memory bottleneck. What should you do?（）

多项选择题 You are a network administrator for ExamSheet.nets Windows 2000 network.  A user named Sandra has a Windows 2000 Professional computer with a single hard disk with two partitions configured as drive C and D. A pagefile has been configured on Drive C:. Sandra reports that applications on her Windows 2000 Professional computer are running slowly. You notice that Sandras computer has 64 MB of RAM. Her hard drive contains 70 MB of free disk space on drive C and 160 MB of free disk space on drive D.You want to improve the performance of Sandras computer.  What should you do?（）

单项选择题 You are a network administrator for ExamSheet.nets Windows 2000 network.  Your computer is installed with Windows 2000 Professional. You schedule a task that will copy files from your computer to another computer on the network. You notice that the task is not completing correctly. You manually copy the files from your computer to other computers on the network without any errors. You verify that all of your other tasks are working correctly. You want the task to complete successfully.  What should you do? （）