Huawei Certified Network Professional – Routing and Switching v2 (HCNP-RS) — Question 9

What is the maximum number of bits that can be used for subnetting, when the network address is a Class C address?

Answer options

• A. 6
• B. 8
• C. 12
• D. 14

Correct answer: A

Explanation

The correct answer is A, as a Class C address provides a default subnet mask of 255.255.255.0, allowing for 8 bits in the host part. Since 2 bits are required for subnetting, this leaves a maximum of 6 bits that can be used for creating subnets. Options B, C, and D exceed the number of bits available for subnetting in a Class C address.