单项选择题

When you enter the interface command auto qos voip cisco-phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?（）

A. by snooping the CoS marking on the incoming frames
B. by using RTP hello messages between the switch port and the Cisco IP Phone
C. by using CDP
D. by using DHCP snooping
E. by snooping the incoming 802.1Q VLAN tag

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多项选择题

Refer to the exhibit. Users complain that they intermittently lose data and connections to important servers. After investigation, you discover that the 802.1Q trunk between DSW111 and ASW1 is down.
Even though the HSRP group 11 is being serviced by DSW112, you discover that the SVI for VLAN 11 is in the up state on DSW111.
Which three Cisco Catalyst IOS commands should you use on DSW111 to find the source of this problem? （）(Choose three.)

A. show vtp status
B. show interfaces vlan 11
C. show standby vlan 11 brief
D. show spanning-tree vlan 11
E. show interfaces mod/port trunk

单项选择题

What is a primary objective of the security architecture assessment? （）

A. document power and UPS availability
B. to integrate routing and switching components
C. create a design specification document
D. document the customer's current and future technology projects

单项选择题

What is the final step of the core baselining process?（）

A. Implement threshold monitoring using RMON.
B. Implement monitoring using SNMP or RMON.
C. Poll and record specific SNMP MIB objects from the device.
D. Verify that SNMP MIB is supported in the relevant core device.