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- 单项选择题 A company has a corporate office building that is used by 50 to 100 unique visitors each day for meetings. Users routinely report that they are unable to access the network with their laptops when visiting this location. The help desk reports that these users are not getting IP addresses automatically assigned. After an investigation， the server administrator has determined that the DHCP service is functioning， but a minimal number of addresses are available for lease. The building is on its own class Csubnet and has 250 addresses in the scope. Which of the following represents a long term solution tothe problem？（）
A、 Manually delete address leases from DHCP.
B、 Create reservations in DHCP for users frequently visiting this location.
C、 Assign static IP addresses to visiting laptops.
D、 Reduce the lease duration in the DHCP scope options to one day.
- D
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