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Following questions and answers are all new published by Cisco Official Exam Center: http://www.lead2pass.com/300-115.html
QUESTION 390
Which feature do you implement so that an interface enters the root inconsistent state if it receives a superior BPDU?
A. DPDU filter
B. root guard
C. BPDU guard
D. loop guard
Answer: B
QUESTION 391
In which two ways can a port respond to a port-security violation? (Choose two.)
A. The port enters the en-disabled state
B. The Security Violation counter is incremented and the port sends an SNMP trap
C. The Security Violation counter is incremented and the port sends a critical syslog message to the console
D. The port triggers an EEM script to notify support staff and continues to forward traffic normally
E. The port immediately begins to drop all traffic.
F. The port enters the shutdown state.
Answer: AF
QUESTION 392
Which three functions does Dynamic ARP Inspection perform with invalid IP-to MAC address bindings? (Choose there.)
A. accepts
B. deletes
C. discards
D. bypasses
E. intercepts
F. logs
Answer: CEF
QUESTION 393
Which two statements about 802. lq are true? (Choose two)
A. It encapsulates the original Ethernet frame and adds a VLAN identifier.
B. It increases the maximum size an Ethernet frame to 1094 bytes.
C. It is a Cisco proprietary protocol.
D. When It is enabled, it forces a recalculation of the frame check sequence field.
E. It supports 8-byte VLAN identifiers.
F. It adds a 32-bit field to the Ethernet frame between the source MAC address and length fields.
Answer: BE
QUESTION 394
A physical switch port is part of an EtherChannel group. What happenes while the same port configured as a SPAN destination?
A. The port forwards traffic in the EtherChannel group and acts as a SPAN source simultaneously.
B. The port is removed from the EtherChannel group.
C. The port is put in the errdisabled state and can only be reenabled manually.
D. The operation is not allowed as an EtherChannel member cannot be a SPAN source port.
Answer: D
QUESTION 395
Which two statements about CDP are true? (Choose two.)
A. CDP uses a TLV to advertise the native VLAN
B. CDP is not supported with SNMP
C. CDP is supported on Frame Relay sub interfaces.
D. CDP runs on OSI layer 2
E. CDP runs on OSI layer 1
Answer: AC
QUESTION 396
Which two combinations of Ether Channel modes support the formation of an EtherChannel? (Choose two.)
A. desirable, passive
B. desirable, desirable
C. active, passive
D. passive, passive
E. active, desirable
Answer: BC
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2017 Cisco 300-115 exam dumps (All 401 Q&As) from Lead2pass:
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