Q21. The network monitoring application alerts a network engineer of a client PC that is acting as a rogue DHCP server. Which two commands help trace this PC when the MAC address is known? (Choose two.)
A. switch# show mac address-table
B. switch# show port-security
C. switch# show ip verify source
D. switch# show ip arp inspection
E. switch# show mac address-table address <mac address>
Q22. Which command globally enables AAA on a device?
A. aaa new-model
B. aaa authentication
C. aaa authorization
D. aaa accounting
Q23. What effect does the mac address-table aging-time 180 command have on the MAC address-table?
A. This is how long a dynamic MAC address will remain in the CAM table.
B. The MAC address-table will be flushed every 3 minutes.
C. The default timeout period will be 360 seconds.
D. ARP requests will be processed less frequently by the switch.
E. The MAC address-table will hold addresses 180 seconds longer than the default of 10 minutes.
Q24. Which option is a benefit of using VSS?
A. reduces cost
B. simplifies configuration
C. provides two independent supervisors with two different control planes
D. removes the need for a First Hop Redundancy Protocol
Q25. Which statement about restrictions for multichassis LACP is true?
A. It is available only on a Cisco Catalyst 6500 Series chassis.
B. It does not support 1Gb links.
C. Converting a port channel to mLACP can cause a service disruption.
D. It is not available in VSS.
Q26. Which statement describes what happens if all VSL connections between the virtual switch
members are lost?
A. Both virtual switch members cease to forward traffic.
B. The VSS transitions to the dual active recovery mode, and both virtual switch members continue to forward traffic independently.
C. The virtual switch members reload.
D. The VSS transitions to the dual active recovery mode, and only the new active virtual switch continues to forward traffic.
Q27. Which command does a network engineer use to verify the spanning-tree status for VLAN 10?
A. switch# show spanning-tree vlan 10
B. switch# show spanning-tree bridge
C. switch# show spanning-tree brief
D. switch# show spanning-tree summary
E. switch# show spanning-tree vlan 10 brief
Q28. After reviewing UDLD status on switch ports, an engineer notices that the." Which statement describes what this indicates about the status of the port?
A. The port is fully operational and no known issues are detected.
B. The bidirectional status of "unknown" indicates that the port will go into the disabled state because it stopped receiving UDLD packets from its neighbor.
C. UDLD moved into aggressive mode after inconsistent acknowledgements were detected.
D. The UDLD port is placed in the "unknown" state for 5 seconds until the next UDLD packet is received on the interface.
Q29. Which gateway role is responsible for answering ARP requests for the virtual IP address in GLBP?
A. active virtual forwarder
B. active virtual router
C. active virtual gateway
D. designated router
Q30. RSPAN has been configured on a Cisco Catalyst switch; however, traffic is not being replicated to the remote switch. Which type of misconfiguration is a cause?
A. The RSPAN designated VLAN is missing the remote span command.
B. The local and remote RSPAN switches are configured using different session IDs.
C. The local RSPAN switch is replicating only Rx traffic to the remote switch.
D. The local switch is overloaded with the amount of sourced traffic that must be replicated to the remote switch.