Which RFC 1918 address space includes a subnet of 172.16.0.0 that uses a mask of 255.255.0.0?

The correct answer is B. class B. RFC 1918 defines three private IP address ranges: Class A (10.0.0.0/8), Class B (172.16.0.0 – 172.31.255.255, i.e., 172.16.0.0/12), and Class C (192.168.0.0/16). The address 172.16.0.0 falls squarely within the Class B private range. The mask 255.255.0.0 (/16) is a valid subnet…

Network Fundamentals

Question

Options

Aclass A
Bclass B
Cclass C
Dclass D

How the community answered

(65 responses)

A
3% (2)
B
88% (57)
C
8% (5)
D
2% (1)

Explanation

RFC 1918 defines three private IP address ranges: Class A (10.0.0.0/8), Class B (172.16.0.0 – 172.31.255.255, i.e., 172.16.0.0/12), and Class C (192.168.0.0/16). The address 172.16.0.0 falls squarely within the Class B private range. The mask 255.255.0.0 (/16) is a valid subnet mask within that range. Class D addresses (224.0.0.0–239.255.255.255) are used for multicast and are not part of RFC 1918 private addressing.

Topics

#RFC 1918#Private IP Addressing#IP Classes#Subnetting

Community Discussion

No community discussion yet for this question.

Full 200-901 Practice