If an edge Label Switch Router （LSR） is properly configured，which three combinations are possible？（） A received IP packet is forwarded based on the IP destination address and the packet is sent as an IP packet.。 An IP destination exists in the IP forwarding table. A received labeled packet is dropped because the label is not found in the LFIB table.。 There is an MPLS label-switched path toward the destination. A received IP packet is dropped because the destination is not found in the IP forwarding table.。 A received IP packet is forwarded based on the IP destination address and the packet is sent as a labeled packet.。 A received labeled IP packet is forwarded based upon both the label and the IP address.。 A received labeled packet is forwarded based on the label. After the label is swapped，the newly labeled packet is sent.。
水敏性
举例说明文学对音乐的借鉴。
A Cisco Catalyst switch can belong to how many VTP domains？ （） 1。 2。 1 to 1，005。 1 to 4，096。 no limit。
载重量
冷战结束后，欧洲并没有获得一劳永逸的安全与稳定，中东欧地区冲突不断，成为流血的伤口。欧盟的软弱无能在波黑问题上暴露无遗，最终仍然需要美国的介入。这说明冷战结束后（）。
