Computer Networks - IP Addressing
Which of the following is the correct subnet mask for a Class B IP address?
Which of the following is the correct subnet mask for a Class B IP address?
easy📝 Factual Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall subnet masks for classes
Class A uses 255.0.0.0, Class B uses 255.255.0.0, Class C uses 255.255.255.0.Step 2: Identify Class B subnet mask
The correct subnet mask for Class B is 255.255.0.0.Final Answer:
255.255.0.0 -> Option CQuick Check:
Class B mask = 255.255.0.0 [OK]
Quick Trick: Class B mask has two 255 blocks at start [OK]
Common Mistakes:
MISTAKES- Choosing Class A or C subnet masks for Class B
- Confusing subnet mask with broadcast address
- Selecting 255.255.255.255 which is a host mask
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