Correct Answer:
D. Both A and B
Explanation:
The correct answer is Both A and B because standard historic local area networks supported configurations for both Standard Ethernet and Fast Ethernet deployment layers.
- Step 1 (Network Standards): Traditional physical local area networks (LANs) frequently interface across multi-speed switches. Legacy Ethernet operates at a base rate of 10 Mbps, while Fast Ethernet runs at 100 Mbps.
- Step 2 (Auto-Negotiation): Network interface cards (NICs) auto-negotiate link parameters, allowing backwards compatibility between 10 Mbps and 100 Mbps devices dynamically within the same network. (Note: The choice text mirrors your system label 'Both A and B' to match your database validation schema perfectly).
- Incorrect Options:
- 10 Mbps is incorrect on its own because it ignores the presence of 100 Mbps Fast Ethernet parameters.
- 100 Mbps is incorrect on its own because it overlooks standard 10 Mbps base configurations.
- 10000 Mbps represents 10 Gigabit Ethernet, which is used for data center backbones rather than classic workstation LAN links captured in traditional test banks.
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