试题详情
- 单项选择题What is the most common cause of network congestion？（）
A、aggregation congestion occurring at the core layer where the different distribution layer devices feed traffic to the core-layer switches
B、speed mismatches when moving from a low-speed LAN environment to a higher speed WAN environment
C、flapping Ethernet interfaces caused by misconfigured LAN interfaces
D、flapping serial interfaces caused by misconfigured WAN interfaces
E、speed mismatches when moving from a high-speed LAN environment to a lower speed WAN environment
- E
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