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2017 October Cisco Official New Released 300-115 Dumps in Lead2pass.com!

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Following questions and answers are all new published by Cisco Official Exam Center: https://www.lead2pass.com/300-115.html

What do subordinate switches in a switch stack keep?

A.    Subordinate switches keep their own spanning trees for each VLAN that they support.
B.    Subordinate switches keep entire VLAN database
C.    Store running config all the switches

Answer: A

802.1Q trunking, what does it do?

A.    Encapsulate frame with VLAN tag
B.    Makes the frame size 1596
C.    Adds 32-bit header
D.    Allows 8-bits in VLAN tag header

Answer: AC

What are the possible results of port-security?

A.    error disable (shut down)
B.    send a trap
C.    port disabled
D.    loop inconsistant

Answer: AB

Which two statements about SDM templates are true?

A.    They are used to allocate system resources
B.    Changing the SDM template will not disturb switch operation.
C.    You can verify the SDM template that is in use with the show sdm prefer command

Answer: AC

Which two statements apply to LLDP?

A.    It runs on the data link layer
B.    It runs on the network layer
C.    It is not enabled by default on Cisco devices
D.    Enabled on Cisco devices by default

Answer: AC

Which two statements apply to topology-based switching?

A.    It is functionally equivalent to Cisco Express Forwarding
B.    It is the preferred switching mode in Cisco multilayer switches
C.    It uses Loop free protocol for switching
D.    disabled by default

Answer: AB

Question about the characteristics of dot1Q (or 802.1Q). (Choose two.)

A.    It inserts a tag between the source address and length field.
B.    It adds an extra of 32 bits to the frame.

Answer: AB

What happens when a destination SPAN port that is configured as EtherChannel receives traffic?

A.    Shutdown….
B.    Nothing….

Answer: A

Drag and Drop Question
Guard Root / Guard Loop




Question about the characteristics of dot1Q (or 802.1Q)

A.    It inserts a tag between the source address and length field
B.    It adds an extra of 32 bits to the frame.

Answer: AB

When Ether Channel guard is enabled and a misconfiguration is detected on a port, how does the port respond?

A.    It enters the channel-error state
B.    enters the errdisable state
C.    The port remains up. but it is unable to pass traffic
D.    enters the shutdown state
E.    The port state remains unchanged, but the EtherChannel stays down.

Answer: B

In which two ways are IEEE STP BPDUs forwarded if VLAN 99 is configured as native? (Choose two)

A.    VLAN 1 STP BPDUs are sent tagged on VLAN 1
B.    VLAN 1 STP BPDUs are sent tagged on VLAN 99
C.    VLAN 1 and VLAN 99 BPDUs are sent tagged on VLAN 1
D.    VLAN 1 STP BPDUs are sent untagged on VLAN 1
E.    VLAN 1 STP BPDUs are sent untagged on VLAN 99

Answer: AE

After you connected a host to switch port G0/1, the port error disabled.
Which command can you enter to determine the reason?

A.    show ip interface brief
B.    Show run interface g0/1
C.    show interfaces g0/1 status
D.    show log

Answer: D

A workstation technician moves a PC from one office desk to another. Before the move the PC has network connectivity After the move as the PC plugged into the now network port, it loses network connectivity and the network switch port becomes err disabled. Which option can cause the Issue?

A.    wrong VLAN
B.    wrong switch port mode
C.    port security
D.    speed issue

Answer: C

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

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: AB

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

Which two statements about 802.1q 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: AF

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

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: AD

Drag and Drop Question
STP Timers




What are possible Etherchannel load balancing mechanism based on layer 3?

A.    Mac source
B.    Mac source-destination
C.    Ip Source
D.    IP Source-destination
E.    Mac destination

Answer: D

Information does the subordinate switch in a switch stack keep for all the VLAN that are configured on it?

A.    Routing information
B.    VLAN database
C.    DHCP snooping database
D.    Spanning trees

Answer: D

Which two commands sequences must you enter on a pair switches so that they negotiate? (Choose 2)

A.    channel-protocol lacp
channel-group 1 mode auto
B.    channel-protocol lacp
channel-group 1 mode passive
C.    channel-protocol pagp
channel-group 1 mode on
D.    channel-protocol pagp
channel-group 1 mode auto
E.    channel-protocol lacp
channel-group 1 mode active

Answer: BE

Which two prerequisites for HSRP to become active on an interface are true? (Choose 2)

A.    Cisco Express Forwarding must be disabled globally.
B.    The VIP must be in the same subnet as the primary IP address.
C.    A Virtual-MAC address must be configured on the interface.
D.    An IP address must be configured on the interface.
E.    PIM routing must be disabled on the interface.

Answer: BD

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