CCNP系列認證CCNP(642-892)章節(jié)練習(2019.03.08)

Refer to the exhibit. A Cisco Aironet Wireless LAN Client Adapter has been installed and configured  through the ADU on the PC. The Aironet System Tray Utility （ASTU） has been enabled during the  installation and the icon appears in the system tray area in the lower right of the desktop. What is the  significance of the icon？（）

Refer to the exhibit. Which statement is true about where trust boundaries should be established in a  network？（）

Refer to the exhibit. What is the effect on the trust boundary of configuring the command mls qos trust cos on the switch port that is connected to the IP phone？（）

Refer to the exhibit. Which statement is true？（）

Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the  roles of the master virtual router and the backup virtual router？（）

Refer to the exhibit. The command spanning-tree guard root is configured on interface Gi0/0 on both  switch S2 and S5. The global configuration command spanning-tree uplinkfast has been configured on both switch S2 and S5. The link between switch S4 and S5 fails. Will Host A be able to reach Host B？（）