When checking a host's IPv4 settings because the host cannot resolve a hostname, which step should logically be done first?
A) Check the host's list of DNS server addresses against the actual addresses by the servers.
B) Check the host's default router settings against the router's LAN interface configuration.
C) Check the subnet mask used by the router and the host.
D) Confirm the host and router are in the same subnet as the one implied by the ip address command.
A
Explanation: A) Checking the DNS server addresses should be the first step here since the issue is with resolving a hostname, which utilizes DNS.
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