An office network consists of one two-port router connected to a 12-port switch. A four-port hub is also connected to the switch. On this particular network, which of the following is the number of collision domains that exist?
A) 3
B) 12
C) 13
D) 14
E) 15

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The Answer of An office network consists of one two-port router connected to a 12-port switch. A four-port hub is also connected to the switch. On this particular network, which of the following is the number of collision domains that exist?
A) 3
B) 12
C) 13
D) 14
E) 15

An Office Network Consists of One Two-Port Router Connected to a 12-Port