Cisco 300-115 Online Practice Questions and Exam Preparation

Cisco 300-115 Online Questions & Answers

• Question 701:

  Which statement describes what happens when a port configured with root guard receives a superior BPDU?

  A. The port goes into errdisabled state and stops forwarding traffic.
  B. The port goes into BPDU-inconsistent state and stops forwarding traffic.
  C. The port goes into loop-inconsistent state and stops forwarding traffic.
  D. The port goes into root-inconsistent state and stops forwarding traffic.
  D. The port goes into root-inconsistent state and stops forwarding traffic.

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  Explanation: The root guard ensures that the port on which root guard is enabled is the designated port. Normally, root bridge ports are all designated ports, unless two or more ports of the root bridge are connected together. If the bridge receives superior STP Bridge Protocol Data Units (BPDUs) on a root guard- enabled port, root guard moves this port to a root-inconsistent STP state. This root-inconsistent state is effectively equal to a listening state. No traffic is forwarded across this port. In this way, the root guard enforces the position of the root bridge. Reference: http://www.cisco.com/en/US/tech/tk389/tk621/ technologies_tech_note09186a00800ae96b.shtml

• Question 702:

  Which two packet types are used by the TACACS+ authentication process? (Choose two.)

  A. request
  B. reply
  C. start
  D. response
  E. continue
  B. reply
  E. continue

• Question 703:

  An exhibit of HSRP with problem with secondary (error is duplicate IP address on 1 of switch port that duplicate with virtual IP address).

  A. misconfigure
  B. PC's IP address
  C. STP loop
  D. https://www.CertBus.com/300-115.html
  C. STP loop

• Question 704:

  Which normal VLAN range are valid and is stored in the vlan.dat configuration file?

  A. VLANs 1-1005
  B. VLANs 1005-2030
  C. VLANs 2094-4094
  D. VLANs 4094-8030
  A. VLANs 1-1005

• Question 705:

  Which two statements about LLDP are true? (Choose two.)

  A. Switches can run LLDP and Cisco Discovery Protocol simultaneously.
  B. When it is enabled on a switch, Cisco Discovery Protocol must be disabled.
  C. When LLDP is enabled globally, it is enabled on all ports including tunnel ports.
  D. Devices with LLDP configured send advertisement messages to a unicast address on a periodic basis.
  E. Devices with LLDP configured send advertisement messages to a multicast address on a periodic basic.
  A. Switches can run LLDP and Cisco Discovery Protocol simultaneously.
  E. Devices with LLDP configured send advertisement messages to a multicast address on a periodic basic.

• Question 706:

  Drag and Drop

  Drop the STP components from the left onto the correct descriptions on the right.

  Select and Place:

  

  

• Question 707:

  Which statements about RSPAN are true? (Choose two.)

  A. It supports MAC adress learning.
  B. RSPAN VLANS can carry RSPAN traffic only.
  C. only one RSPAN VLAN can be configured per device.
  D. RSPAN VLANs are exempt from VTP pruning.
  E. MAC address learning is not supported.
  F. RSPAN uses are GRE tunnel to transmit captured traffic.
  B. RSPAN VLANS can carry RSPAN traffic only.
  E. MAC address learning is not supported.

• Question 708:

  Which two commands displays IP Source Guard bindings? (Choose two)

  A. show ip dhcp binding
  B. show ip source binding
  C. show ip dhcp snooping database
  D. show ip guard source
  E. show ip verify source
  B. show ip source binding
  E. show ip verify source

• Question 709:

  Which statement about GLBP is true?

  A. Unused bandwidth is never utilized.
  B. They communicate under TCP port 3222 for both source and destination.
  C. They become active if any of the existing forwarding switches fail.
  D. They become restricted if any of the existing forwarding switches fail.
  C. They become active if any of the existing forwarding switches fail.

• Question 710:

  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.
  C. STP is unable to achieve rapid transition for trunk links.

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  RSTP can only achieve rapid transition to the forwarding state on edge ports and on point-to- point links, not on trunk links. The link type is automatically derived from the duplex mode of a port. A port that operates in full-duplex is assumed to be point-to-point, while a half-duplex port is considered as a shared port by default. This automatic link type setting can be overridden by explicit configuration. In switched networks today, most links operate in full-duplex mode and are treated as point-to-point links by RSTP. This makes them candidates for rapid transition to the forwarding state. Reference: http://www.cisco.com/c/en/us/support/ docs/lan-switching/spanning-tree- protocol/24062- 146.html