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10. D. Beverly is correct in thinking she must run DISKPERF. The execution of DISKPERF sets a startup flag to turn on or off disk counters and must always be accompanied by a system restart. -yd is the default, and it starts only the physical counters. -nv turns off the logical disk counters. -y turns on both the physical and logical counters (-yv would have also worked because it turns on only logical counters). For more information, see the section "Monitoring and Optimizing System Resource Use."

11. B. The sudden increase in interrupts generally indicates that a piece of hardware has just gone into an altered state and should be repaired or replaced. For more information, see the section "Monitoring and Optimizing System Resource Use."

12. B. To back up (and hence recover) the Registry, you must back up the system state information for a local server. For more information, see the section "Saving System State and User Data with Windows 2000 Backup."

13. D. Although he is on the right track, Wesley has missed out on an important requirement: Data loss (and downtime) must never last more than 12 hours. By scheduling a backup for once a week, he cannot come anywhere near that promise unless the data loss occurred late in the day on the day the backup was done. For more information, see the section "Recovering System State and User Data with Windows 2000 Backup."

14. A. Through the use of correct backup schedules, Tasha has ensured that the required result is met. Without any other plans in place, she can also recover from start file loss by using the startup disk set and the emergency repair process (she does not need an ERD to do this). In addition, with the startup disks, she can also boot to the Recovery console to stop faulty services from starting. For more information, see the sections "Server, System State, and User Data Recovery."

15. B. Tuning means optimizing a server for its intended task. Although you may remove certain components or modify component properties because of security or other considerations, tuning needs to be done with reference to the expected tasks the server will perform. For more information, see the section, "Monitoring and Optimizing System Resource Use."

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