Network Troubleshooting第 77 / 100 题
A user cannot reach any website by name but can ping external IP addresses directly. Which service is most likely misconfigured?
a.DNS
b.DHCP
c.STP
d.NTP
解析
Being able to ping IPs but not resolve names points to a DNS problem, since name resolution is failing while basic IP connectivity works. Checking the client's DNS server settings is the logical next step. This isolates the layer where the fault lies.
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