A company is experiencing slow network performance. Describe how you would use the OSI Model to diagnose the issue and propose solutions.
- Data Link Layer
- Network Layer
- Physical Layer
- Transport Layer
To diagnose slow network performance using the OSI Model, start at the Physical Layer (Layer 1) to check for issues like cable damage, connectivity problems, or hardware failures. Move up to the Data Link Layer (Layer 2) to examine Ethernet or MAC address problems. The Network Layer (Layer 3) is critical for diagnosing routing or IP address issues that could cause delays. Finally, the Transport Layer (Layer 4) helps identify congestion, packet loss, or protocol-related problems. Solutions may involve replacing faulty hardware, optimizing routing tables, or implementing Quality of Service (QoS) measures.
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