Which of these is a private Class B IP address?0.5 Marks172.31.56.23172.15.56.23192.168.56.23172.33.56.23

To identify which of these is a private Class B IP address, we need to understand the definition of private IP address ranges.

Class B Private IP Range

The Class B private IP address range is defined as:

• From 172.16.0.0 to 172.31.255.255.

Options Given

1. 172.31.56.23
2. 172.15.56.23
3. 192.168.56.23
4. 172.33.56.23

Evaluate Each Option

1. Option 1: 172.31.56.23

   • Falls within the range (172.16.0.0 to 172.31.255.255).
   • This is a private Class B IP address.

2. Option 2: 172.15.56.23

   • Outside the private range.

3. Option 3: 192.168.56.23

   • Class C private IP address, not Class B.

4. Option 4: 172.33.56.23

   • Outside the private range.

Conclusion

The only private Class B IP address among the listed options is 172.31.56.23.

Final Answer

172.31.56.23 is a private Class B IP address.