COMPTIA A+ Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the COMPTIA A+ Exam with confidence! Sharpen your skills through comprehensive quizzes and detailed explanations. Equip yourself with the knowledge needed to succeed in your certification journey.

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!

Practice this question and more.

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.