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You run ping -c 3 256.256.256.256 and get an error. What is the likely cause?

medium📝 Debug Q6 of 15
Linux CLI - Networking Commands
You run ping -c 3 256.256.256.256 and get an error. What is the likely cause?
AInvalid IP address format
BHost is down
CMissing ping command
DNo network connection
Step-by-Step Solution
Solution:

  1. Step 1: Analyze the IP address

    The IP 256.256.256.256 is invalid because IP octets must be between 0 and 255.

  2. Step 2: Understand error cause

    Invalid IP format causes ping to fail immediately with an error, not host down or network issues.

  3. Final Answer:

    Invalid IP address format -> Option A

  4. Quick Check:

    Invalid IP causes ping error = true [OK]
Quick Trick: IP octets must be 0-255, else ping errors [OK]
Common Mistakes:
  • Assuming host down causes error
  • Thinking network is disconnected
  • Ignoring IP format rules

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