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300-115 Exam Questions - Online Test


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Q1. 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

Q2. 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

Answer: D

Q3. Which statement about Cisco devices learning about each other through Cisco Discovery Protocol is true?

A. Each device sends periodic advertisements to multicast address 01:00:0C:CC:CC:CC.

B. Each device broadcasts periodic advertisements to all of its neighbors.

C. Each device sends periodic advertisements to a central device that builds the network topology.

D. Each device sends periodic advertisements to all IP addresses in its ARP table.

Answer: A

Q4. After implementing VTP, the extended VLANs are not being propagated to other VTP switches. What should be configured for extended VLANs?

A. VTP does not support extended VLANs and should be manually added to all switches.

B. Enable VTP version 3, which supports extended VLAN propagation.

C. VTP authentication is required when using extended VLANs because of their ability to cause network instability.

D. Ensure that all switches run the same Cisco IOS version. Extended VLANs will not propagate to different IOS versions when extended VLANs are in use.

Answer: B

Q5. 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

Q6. Refer to the exhibit.

A multilayer switch has been configured to send and receive encapsulated and tagged frames. VLAN 2013 on the multilayer switch is configured as the native VLAN. Which option is the cause of the spanning-tree error?

A. VLAN spanning-tree in SW-2 is configured.

B. spanning-tree bpdu-filter is enabled.

C. 802.1q trunks are on both sides, both with native VLAN mismatch.

D. VLAN ID 1 should not be used for management traffic because its unsafe.

Answer: C

Q7. Which private VLAN access port belongs to the primary VLAN and can communicate with all interfaces, including the community and isolated host ports?

A. promiscuous port

B. isolated port

C. community port

D. trunk port

Answer: A

Q8. Which command is needed to enable DHCP snooping if a switchport is connected to a DHCP server?

A. ip dhcp snooping trust

B. ip dhcp snooping

C. ip dhcp trust

D. ip dhcp snooping information

Answer: A

Q9. A network engineer configured a fault-tolerance link on Gigabit Ethernet links G0/1, G0/2, G0/3, and G0/4 between two switches using Ethernet port-channel. Which action allows interface G0/1 to always actively forward traffic in the port-channel?

A. Configure G0/1 as half duplex and G0/2 as full duplex.

B. Configure LACP port-priority on G0/1 to 1.

C. Configure LACP port-priority on G0/1 to 65535.

D. LACP traffic goes through G0/4 because it is the highest interface ID.

Answer: B

Q10. Refer to the exhibit.

What is the result of the configuration?

A. The EtherChannels would not form because the load-balancing method must match on the devices.

B. The EtherChannels would form and function properly even though the load-balancing and EtherChannel modes do not match.

C. The EtherChannels would form, but network loops would occur because the load- balancing methods do not match.

D. The EtherChannels would form and both devices would use the dst-ip load-balancing method because Switch1 is configured with EtherChannel mode active.

Answer: B