A company is experiencing network delays. The network administrator discovers that a worker in a location far from the MDF has connected an old 10BASE-T switch with redundant links to the existing network. How could this action be responsible for the impaired network performance?（） [" Connecting a host to the old switch has created a broadcast storm."," The 10BASE-T switch forced the entire network to be reduced to 10 Mbps operation."," The old switch does not support VLANs, which has disabled the VLAN configuration of the entire the network."," The old switch does not support full-duplex operation, effectively forcing half-duplex operation throughout the network."," Spanning Tree Protocol has elected the old switch as the root bridge, creating inefficient data paths through the switched network."]
《管子・牧民》“四维不张，国乃灭亡”的四维是指（）。
广告效果与销售效果的关系。
初生分节
What are the four fields in an MPLS label？（） ["version","experimental","label","protocol","TTL","bottom-of-stack indicato"]
唾液斑确定常采用淀粉消化试验，将少许淀粉液与检材浸出液作用后，再加碘液，若不显蓝色，表明检材（），若显蓝色，表明检材（）。
