TestOut LabSim A+ Certification Practice Exam

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Which of the following IP addresses are Class C addresses? (select three)

  1. 192.15.5.55

  2. 222.55.0.0

  3. 223.16.5.0

  4. 10.0.0.1

The correct answer is: 192.15.5.55

A Class C IP address falls within the range of 192.0.0.0 to 223.255.255.255. This classification is primarily used for networks with a relatively small number of hosts, as it supports up to 254 individual addresses. Among the options given, the first choice, 192.15.5.55, is a valid Class C address since it starts with 192. The third choice, 223.16.5.0, also qualifies as a Class C address because it falls under the range of 223.0.0.0 to 223.255.255.255, which is still within the Class C boundary. The second choice, 222.55.0.0, does not qualify as Class C because it is part of the Class B address space, which ranges from 128.0.0.0 to 191.255.255.255. The fourth choice, 10.0.0.1, is classified as a Class A address, as its leading bit pattern indicates that it belongs to the Class A range of 1.0.0.0 to 126.255.255.255. Therefore, the valid Class C

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