根据伊扎徳等研究发现，当母亲和10周的婴儿进行愉快和不愉快的交流时，婴儿会出现哪些表情？（） 愉快、感兴趣、悲伤和发怒。 兴奋、激动、难过和暴躁。 舒适、愉快、恐惧和厌恶。 兴奋、感兴趣、厌恶和发怒。
In MPLS traffic engineering， which one of the following protocols is used for Path Setup？（） BGP。 OSPF。 ISIS。 RSVP。
Prior to 802.1w， Cisco implemented a number of proprietary enhancements to 802.1D to improve convergence in a Layer 2 network. Which statement is correct？（） Only UplinkFast and BackboneFast are specified in 802.1w； PortFast must be manually configured.。 Only PortFast is specified in 802.1w； UplinkFast and BackboneFast must be manually configured.。 None of the proprietary Cisco enhancements are specified in 802.1w.。 PortFast， UplinkFast， and BackboneFast are specified in 802.1w.。
凝汽器的中间支持答板有什么作甩？
It has become necessary to configure an existing serial interface to accept a second Frame Relay virtual circuit.Which of the following processes are required to accomplish this task?（） configure static frame relay map entries for each subinterface network.。 remove the ip address from the physical interface。 create the virtual interfaces with the interface command。 configure each subinterface with its own IP address。 disable split horizon to prevent routing loops between the subinterface networks。 encapsulate the physical interface with multipoint PPP。
What is one reason you might recommend a solution using only autonomous access points to a customer？ （）
