COMPTIA A+ Practice Exam

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Ace your COMPTIA A+ certification with our practice exam. Engage with a variety of questions including multiple choice and performance-based, complete with hints and detailed explanations. Prepare effectively and boost your confidence for the big day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is the starting IP address range for Class B?

The correct answer is: 128

Class B networks have a default subnet mask of 255.255.0.0, which allows for 65,534 hosts. The first octet of the IP address for Class B ranges from 128 to 191. This is why the starting IP address range for Class B is 128. Option B (192) is incorrect because that falls in the Class C range. Option C (224) is incorrect because that falls in the Class D range, which is used for multicast addresses. Option D (10) is incorrect because that falls in the Class A range, which has a default subnet mask of 255.0.0.0 and allows for over 16 million hosts.