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XYZ LTD wants to connect Cisco IP Phones and Cisco Aironet Access Points to the network. The customer also wants to use the PoE features included in the Cisco Catalyst Express 500 Series Switches.
Which two models can provide this features?（）

短期国债市场 间隙扩散 下面关于flash动画播放的叙述错误的是（） flash动画在默认的情形下会不断重复播放。 flash动画每秒播放的帧数由帧频决定。 若动画共100帧，当第100帧播放完成后，flash会立刻播放第1帧。 flash动画在播放时，是无法在某帧设置停止的。 Which of these tools should you use to compress VoIP packets on a low-speed Frame Replay circuit?（） Cisco Proprietary payload compression。 Predictor payload compression。 RTP header compression。 TCP header compressio。 微机系统内部通过3组总线连接，这三组总线分别是数据总线、（）和（）。

XYZ LTD wants to connect Cisco IP Phones and Cisco Aironet Access Points to the network. The customer also wants to use the PoE features included in the Cisco Catalyst Express 500 Series Switches.
Which two models can provide this features?（）