Q41. What is the function of NSF?
A. forward traffic simultaneously using both supervisors
B. forward traffic based on Cisco Express Forwarding
C. provide automatic failover to back up supervisor in VSS mode
D. provide nonstop forwarding in the event of failure of one of the member supervisors
Answer: D
Q42. A network engineer notices inconsistent Cisco Discovery Protocol neighbors according to the diagram that is provided. The engineer notices only a single neighbor that uses Cisco Discovery Protocol, but it has several routing neighbor relationships. What would cause the output to show only the single neighbor?
A. The routers are connected via a Layer 2 switch.
B. IP routing is disabled on neighboring devices.
C. Cisco Express Forwarding is enabled locally.
D. Cisco Discovery Protocol advertisements are inconsistent between the local and remote devices.
Answer: A
Q43. after UDLD is implemented, a Network Administrator noticed that one port stops receiving UDLD packets. This port continues to reestablish until after eight failed retries. The port then transitions into the errdisable state. Which option describes what causes the port to go into the errdisable state?
A. Normal UDLD operations that prevent traffic loops.
B. UDLD port is configured in aggressive mode.
C. UDLD is enabled globally.
D. UDLD timers are inconsistent.
Answer: B
Q44. Which command correctly configures standby tracking for group 1 using the default decrement priority value?
A. standby 1 track 100
B. standby 1 track 100 decrement 1
C. standby 1 track 100 decrement 5
D. standby 1 track 100 decrement 20
Answer: A
Q45. Which configuration command ties the router hot standby priority to the availability of its interfaces?
A. standby group
B. standby priority
C. backup interface
D. standby track
Answer: D
Q46. Pilot testing of the new switching infrastructure finds that when the root port is lost, STP immediately replaces the root port with an alternative root port. Which spanning-tree technology is used to accomplish backup root port selection?
A. PVST+
B. PortFast
C. BackboneFast
D. UplinkFast
E. Loop Guard
F. UDLD
Answer: D
Q47. Which action allows a network engineer to limit a default VLAN from being propagated across all trunks?
A. Upgrade to VTP version 3 for advanced feature set support.
B. Enable VTP pruning on the VTP server.
C. Manually prune default VLAN with switchport trunk allowed vlans remove.
D. Use trunk pruning vlan 1.
Answer: C
Q48. Which feature must be enabled to eliminate the broadcasting of all unknown traffic to switches that are not participating in the specific VLAN?
A. VTP pruning
B. port-security
C. storm control
D. bpdguard
Answer: A
Q49. Refer to the exhibit.
When a network administrator is attempting an SSH connection to the device, in which order does the device check the login credentials?
A. RADIUS server, local username, line password
B. RADIUS server, line password, local username
C. Line password, local username, RADIUS server
D. Line password, RADIUS server, local username
Answer: A
Q50. Which option lists the modes that are available for configuring UDLD on a Cisco switch?
A. normal and aggressive
B. active and aggressive
C. normal and active
D. normal and passive
E. normal and standby
Answer: A