Which of the following is the dotted-decimal notation (DDN) equivalent of /18?
A) 255.255.128.0
B) 255.255.192.0
C) 255.255.224.0
D) 255.255.240.0
B
Explanation: B) The /18 CIDR notation converts to 11111111 11111111 11000000 00000000 in binary, which then converts to 255.255.192.0 in dotted-decimal notation.
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