Computer Networks - OSI and TCP/IP Models
Consider a network layered model where Layer 3 handles routing and Layer 4 handles error checking. If a packet has an error, which layer is responsible for detecting it?
Consider a network layered model where Layer 3 handles routing and Layer 4 handles error checking. If a packet has an error, which layer is responsible for detecting it?
medium📝 Analysis Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Identify the function of each layer
Layer 3 is responsible for routing, while Layer 4 handles error checking.Step 2: Determine which layer detects errors
Since error checking is Layer 4's job, it detects packet errors.Final Answer:
Layer 4 -> Option BQuick Check:
Error checking = Layer 4 [OK]
Quick Trick: Match function to layer number [OK]
Common Mistakes:
MISTAKES- Confusing routing with error checking
- Choosing Layer 2 which handles data link tasks
- Selecting Layer 5 which is for session management
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