单选题Which of the following is not a typical maintenance task within a network maintenance model？（）AProviding technical customer supportBChanging configurationsCUpdating softwareDMonitoring network performanceEReplacing hardwareFScheduling backups
单选题
Which of the following is not a typical maintenance task within a network maintenance model？（）
A
Providing technical customer support
B
Changing configurations
C
Updating software
D
Monitoring network performance
E
Replacing hardware
F
Scheduling backups
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