ashdown mag 115-300 (17 to 32)

Exam Code: 300-115 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Implementing Cisco IP Switched Networks
Certification Provider: Cisco
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2021 Apr 300-115 Study Guide Questions:

Q17. Which option describes a limitation of LLDP?

A. LLDP cannot provide information about VTP.

B. LLDP does not support TLVs.

C. LLDP can discover only Windows servers.

D. LLDP can discover up to two devices per port.

Answer: A

Q18. DHCP snooping and IP Source Guard have been configured on a switch that connects to several client workstations. The IP address of one of the workstations does not match any entries found in the DHCP binding database. Which statement describes the outcome of this scenario?

A. Packets from the workstation will be rate limited according to the default values set on the switch.

B. The interface that is connected to the workstation in question will be put into the errdisabled state.

C. Traffic will pass accordingly after the new IP address is populated into the binding database.

D. The packets originating from the workstation are assumed to be spoofed and will be discarded.

Answer: D

Q19. 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

Q20. Which technique automatically limits VLAN traffic to only the switches that require it?

A. access lists

B. DTP in nonegotiate

C. VTP pruning


Answer: C

Q21. When you design a switched network using VTPv2, how many VLANs can be used to carry user traffic?

A. 1000

B. 1001

C. 1024

D. 2048

E. 4095

F. 4096

Answer: B

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Q22. Refer to the exhibit.

Which EtherChannel negotiation protocol is configured on the interface f0/13 – f0/15?

A. Link Combination Control Protocol

B. Port Aggregation Protocol

C. Port Combination Protocol

D. Link Aggregation Control Protocol

Answer: B

Q23. 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

Q24. What is the default amount by which the hot standby priority for the router is decremented or incremented when the interface goes down or comes back up?

A. 1

B. 5

C. 10

D. 15

Answer: C

Q25. Refer to the exhibit.

All ports are members of VLAN 10. Considering the default cost of upstream bridges to the root bridge is equal, which option will be the new root port for VLAN 10?

A. interface f0/13

B. interface f0/14

C. interface f0/15

D. interface f0/21

Answer: D

Q26. What is the default value for the errdisable recovery interval in a Cisco switch?

A. 30 seconds

B. 100 seconds

C. 300 seconds

D. 600 seconds

Answer: C

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Q27. While troubleshooting a network outage, a network engineer discovered an unusually high level of broadcast traffic coming from one of the switch interfaces. Which option decreases consumption of bandwidth used by broadcast traffic?

A. storm control

B. SDM routing

C. Cisco IOS parser

D. integrated routing and bridging

E. Dynamic ARP Inspection

Answer: A

Q28. Refer to the exhibit.

The network switches for two companies have been connected and manually configured for the required VLANs, but users in company A are not able to access network resources in company B when DTP is enabled. Which action resolves this problem?

A. Delete vlan.dat and ensure that the switch with lowest MAC address is the VTP server.

B. Disable DTP and document the VTP domain mismatch.

C. Manually force trunking with switchport mode trunk on both switches.

D. Enable the company B switch with the vtp mode server command.

Answer: C

Q29. A network engineer must adjust the STP interface attributes to influence root port selection. Which two elements are used to accomplish this? (Choose two.)

A. port-priority

B. cost

C. forward-timers

D. link type

E. root guard

Answer: A,B

Q30. Refer to the exhibit.

Switch A, B, and C are trunked together and have been properly configured for VTP. Switch B has all VLANs, but Switch C is not receiving traffic from certain VLANs. What would cause this issue?

A. A VTP authentication mismatch occurred between Switch A and Switch B.

B. The VTP revision number of Switch B is higher than that of Switch A.

C. VTP pruning is configured globally on all switches and it removed VLANs from the trunk interface that is connected to Switch C.

D. The trunk between Switch A and Switch B is misconfigured.

Answer: C

Q31. The network manager has requested that several new VLANs (VLAN 10, 20, and 30) are allowed to traverse the switch trunk interface. After the command switchport trunk allowed vlan 10,20,30 is issued, all other existing VLANs no longer pass traffic over the trunk. What is the root cause of the problem?

A. The command effectively removed all other working VLANs and replaced them with the new VLANs.

B. VTP pruning removed all unused VLANs.

C. ISL was unable to encapsulate more than the already permitted VLANs across the trunk.

D. Allowing additional VLANs across the trunk introduced a loop in the network.

Answer: A

Q32. 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