Understanding Cisco Cybersecurity Fundamentals (SECFND, legacy) — Question 30

What determines the class of an IP address?

Answer options

• A. the number of bits in the host field
• B. the subnet mask
• C. the most significant bit (MSB) pattern
• D. the third octet

Correct answer: C

Explanation

The class of an IP address is determined by the pattern of the most significant bit (MSB), which indicates whether it belongs to Class A, B, C, etc. The number of bits in the host field and the subnet mask do not define the class, and the third octet does not provide sufficient information to classify the IP address.