Assuming that an IP packet is sent from a source address in VLAN1 to a destination address in VLAN2 through a layer-3 switch, which part of the packet will be changed?（）
- A、Layer 2 TTL
- B、Layer 3 TTL
- C、Layer 3 source address
- D、Layer 3 destination address
正确答案:B
答案解析:有
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