In the file /etc/nsswitch.conf, what does the following line do?
~ hosts: nis files dns
A. NIS requests are forwarded to DNS.
B. NIS is used first for hostname resolution.
C. /etc/hosts is used for all NIS, NetBIOS, and DNS lookups.
D. NSS (Network Security Services) lookup is enabled for NIS, DNS, and remote files.
Answer: B
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