单选题Which of the following options best justifies why a DNS server should be run in a large network system？（）ATo use ftp and telnetBTo perform NFS mountsCTo make /etc/hosts files unnecessaryDTo reduce network traffic and save bandwidth
单选题
Which of the following options best justifies why a DNS server should be run in a large network system？（）
A
To use ftp and telnet
B
To perform NFS mounts
C
To make /etc/hosts files unnecessary
D
To reduce network traffic and save bandwidth
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