Computer Networks - IP Addressing
Which of the following is a valid Class A IP address?
Which of the following is a valid Class A IP address?
easy📝 Factual Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Identify Class A IP address range
Class A addresses have first octet from 1 to 126.Step 2: Check each option's first octet
10 is within 1-126, so 10.5.6.7 is Class A. 172 is Class B, 192 is Class C, 224 is Class D.Final Answer:
10.5.6.7 -> Option DQuick Check:
Class A IP starts with 1-126 [OK]
Quick Trick: Class A IPs start with 1-126 in first octet [OK]
Common Mistakes:
MISTAKES- Choosing 172 or 192 as Class A
- Confusing Class D as Class A
- Ignoring first octet range
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