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Share some CCNP 300-115 exam questions and answers below.
Which technique allows specific VLANs to be strictly permitted by the administrator?
A. VTP pruning
B. transparent bridging
C. trunk allowed VLANs
D. VLAN access-list
E. L2P tunneling
Answer: C


In a Cisco switch, what is the default period of time after which a MAC address ages out and is discarded?
A. 100 seconds
B. 180 seconds
C. 300 seconds
D. 600 seconds
Answer: C


If a network engineer applies the command mac-address-table notification mac-move on a Cisco switch port, when is a syslog message generated?
A. A MAC address or host moves between different switch ports.
B. A new MAC address is added to the content-addressable memory.
C. A new MAC address is removed from the content-addressable memory.
D. More than 64 MAC addresses are added to the content-addressable memory.
Answer: A


An EtherChannel bundle has been established between a Cisco switch and a corporate web server. The network administrator noticed that only one of the EtherChannel links is being utilized to reach the web server.
What should be done on the Cisco switch to allow for better EtherChannel utilization to the corporate web server?
A. Enable Cisco Express Forwarding to allow for more effective traffic sharing over the EtherChannel bundle.
B. Adjust the EtherChannel load-balancing method based on destination IP addresses.
C. Disable spanning tree on all interfaces that are participating in the EtherChannel bundle.
D. Use link-state tracking to allow for improved load balancing of traffic upon link failure to the server.
E. Adjust the EtherChannel load-balancing method based on source IP addresses.
Answer: E


A network engineer must set the load balance method on an existing port channel.
Which action must be done to apply a new load balancing method?
A. Configure the new load balancing method using port-channel load-balance.
B. Adjust the switch SDM back to "default".
C. Ensure that IP CEF is enabled globally to support all load balancing methods.
D. Upgrade the PFC to support the latest load balancing methods.
Answer: A


Which feature is automatically configured when an administrator enables a voice VLAN?
A: 802.1Q trunking
B: PortFast
C: QoS
D: private VLANs
Answer: B

Which option is a possible cause for an errdisabled interface?
A. routing loop
B. cable unplugged
C. STP loop guard
D. security violation
Answer: D


A network engineer has just deployed a non-Cisco device in the network and wants to get information about it from a connected device. Cisco Discovery Protocol is not supported, so the open standard protocol must be configured.
Which protocol does the network engineer configure on both devices to accomplish this?
A. IRDP
B. LLDP
C. NDP
D. LLTD
Answer: B


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
Answer: A


For client server failover purposes, the application server team has indicated that they must not have the standard 30 second delay before their switchport enters a forwarding state. For their disaster recovery feature to operate successfully, they require the switchport to enter a forwarding state immediately.
Which spanning-tree feature satisfies this requirement?
A. Rapid Spanning-Tree
B. Spanning-Tree Timers
C. Spanning-Tree FastPort
D. Spanning-Tree PortFast
E. Spanning-Tree Fast Forward
Answer: D


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


A network is running VTPv2. After verifying all VTP settings, the network engineer notices that the new switch is not receiving the list of VLANs from the server.
Which action resolves this problem?
A. Reload the new switch.
B. Restart the VTP process on the new switch.
C. Reload the VTP server.
D. Verify connected trunk ports.
Answer: D


An administrator recently configured all ports for rapid transition using PortFast. After testing, it has been determined that several ports are not transitioning as they should.
What is the reason for this?
A. RSTP has been enabled per interface and not globally.
B. The STP root bridge selection is forcing key ports to remain in non-rapid transitioning mode.
C. STP is unable to achieve rapid transition for trunk links.
D. The switch does not have the processing power to ensure rapid transition for all ports.
Answer: C


An engineer is configuring an EtherChannel between two switches using LACP. If the EtherChannel mode on switch 1 is configured to active, which two modes on switch 2?establish an operational EtherChannel? (Choose two.)
A: active
B: auto
C: desirable
D: on
E: passive
Answer: A, E

For security reasons, the IT manager has prohibited users from dynamically establishing trunks with their associated upstream switch.
Which two actions can prevent interface trunking? (Choose two.)
A. Configure trunk and access interfaces manually.
B. Disable DTP on a per interface basis.
C. Apply BPDU guard and BPDU filter.
D. Enable switchport block on access ports.
Answer: AB


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