试题详情
- 单项选择题A user reports that they are unable to reach a particular website. The user had no issues reaching the site earlier in the day. Which of the following is the MOST likely cause of the lack of access？（）
A、The VLAN is misconfigured
B、The user has an improperly configured NIC
C、The DHCP server is down
D、The DNS server is down
- D
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