Cisco 300-115 Online Practice Questions and Exam Preparation

Cisco 300-115 Online Questions & Answers

• Question 231:

  Which feature disrupt incoming and outgoing traffic to receive replicated selected traffic?

  A. SPAN
  B. BPDU guard
  C. root guard
  D. PortFast
  A. SPAN

• Question 232:

  Which two statements about sticky MAC address learning are true? (Choose two.)

  A. A single device can learn up to three sticky MAC addresses.
  B. Devices can learn sticky MAC addresses dynamically.
  C. Learned addresses are saved to the startup configuration file by default.
  D. Learned addresses are saved to the running configuration by default.
  E. Learned addresses are automatically preserved when the device reboots.
  F. It can be used only on devices that operate in a single layer.
  B. Devices can learn sticky MAC addresses dynamically.
  D. Learned addresses are saved to the running configuration by default.

• Question 233:

  A question about a Layer 2 switch has been moved over to a Layer 2 and Layer 3 environment but high CPU spike during work hours.

  A. show sdm prefer vlan (config)# sdm prefer vlan
  B. show sdm prefer routing (config)# sdm prefer routing
  C. show sdm prefer (config)# sdm prefer routing
  D. show sdm prefer (config)# sdm prefer default
  D. show sdm prefer (config)# sdm prefer default

• Question 234:

  Which two actions can be configured for storm control violation?

  A. Shutdown
  B. Trap
  C. Notify admin
  D. Discard Port
  A. Shutdown
  B. Trap

• Question 235:

  in a Cisco StackWise Virtual environment, which planes on the component devices are virtually combined in the common logical switch?

  A. management arid data only
  B. control and data only
  C. control and management only
  D. control, data, and management
  C. control and management only

• Question 236:

  Which switch feature prevents traffic on a LAN from being overwhelmed by continuous multicast or broadcast traffic?

  A. storm control
  B. port security
  C. VTP pruning
  D. VLAN trunking
  A. storm control

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  Explanation: A traffic storm occurs when packets flood the LAN, which creates excessive traffic and degrades network performance. The traffic storm control feature prevents LAN ports from being disrupted by a broadcast, multicast, or unicast traffic storm on physical interfaces from either mistakes in network configurations or from users issuing a DoS attack. Reference:http://3c3cc.com/c/en/us/td/docs/ routers/7600/ios/122SR/configuration/guide/swcg/do s.pdf

• Question 237:

  What happens when a port configured with root-inconsistent receives a superior BPDU?

  A. Loop Guard
  B. Root Guard
  C. BPDU Guard
  D. BPDU Filter
  B. Root Guard

• Question 238:

  A question about EtherChannel misconfig.

  A. spanning-tree etherchannel guard misconfig
  B. www.certbus.com
  C. www.certbus.com
  D. www.certbus.com
  A. spanning-tree etherchannel guard misconfig

• Question 239:

  Which command is used to configure vendor-specific attributes with RADIUS?

  A. radius-server vsa send
  B. vendor-specific attribute
  C. http://certbus.com
  D. http://certbus.com
  A. radius-server vsa send

• Question 240:

  Refer to the exhibit.

  

  A network engineer investigates a recent network failure and notices that one of the interfaces on the switch is still down. What is causing the line protocol on this interface to be shown as down?

  A. There is a layer 1 physical issue.
  B. There is a speed mismatch on the interface.
  C. The interface is configured as the target of the SPAN session.
  D. The interface is configured as the source of the SPAN session.
  E. There is a duplex mismatch on the interface.
  C. The interface is configured as the target of the SPAN session.

  ---

  With the SAPN destination port, the state of the destination port is up/down by design. The interface shows the port in this state in order to make it evident that the port is currently not usable as a production port. This is the normal operational

  state for SPAN destinations.

  Reference:

  http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a008015c61 2.shtml