Cisco 300-115 Online Practice Questions and Exam Preparation

Cisco 300-115 Online Questions & Answers

• Question 981:

  You are configured dynamic ARP inspection. Which command must you configure on the device to detect unexpected IP addresses in the ARP packet?

  A. ip are inspection validate ip
  B. ip verify source
  C. ip are inspection trust
  D. ip are inspection vlan
  A. ip are inspection validate ip

• Question 982:

  Which type of attack can be mitigated by dynamic ARP inspection?

  A. Trojan infiltration
  B. worm infiltration
  C. DDoS attacks
  D. smurf attacks
  E. viruses F. man-in-the-middle attackes
  F

• Question 983:

  A network administrator configures 10 extended VLANs ranging from VLANs 3051 to 3060 in an enterprise network. Which version of VTP supports these extended VLANs?

  A. version 1
  B. version 2
  C. version 3
  D. VTP does not recognize extended VLANs
  C. version 3

• Question 984:

  What is the benefit of UDLD?

  A. provides backup for fiber
  B. help in preventing loops
  C. removes loops
  D. determines switch path
  B. help in preventing loops

• Question 985:

  Which two statements are true in regards to normal and extended range VLANs? (Choose two.)

  A. Normal range VLANs from 1-1005 are stored in vlan.dat.
  B. Extended range VLANs from 1006-4096 are stored in the startup configuration.
  C. Normal range VLANs from 1-1005 are stored in the startup configuration.
  D. Extended range VLANs from 1006-4096 are stored in vlan.dat.
  E. Both normal and extended VLANs are stored in vlan.dat file.
  A. Normal range VLANs from 1-1005 are stored in vlan.dat.
  B. Extended range VLANs from 1006-4096 are stored in the startup configuration.

• Question 986:

  Which command disables spanning tree on multiple ports?

  A. no spanning-tree mode rapid-pvst
  B. no spanning-tree vlan
  C. no spanning-tree mode pvst
  D. no spanning-tree mode mst
  B. no spanning-tree vlan

• Question 987:

  Which command do you enter to enable Dynamic ARP Inspection for VLAN 15?(choose two)

  A. SW1(config-vlan)# ip arp inspection vlan 15
  B. SW1(config-vlan)# ip arp inspection trust
  C. SW1(config-if)# ip arp-inspection trust
  D. SW1(config)# ip arp inspection vlan 15
  C. SW1(config-if)# ip arp-inspection trust
  D. SW1(config)# ip arp inspection vlan 15

• Question 988:

  Refer to the exhibit().

  

  Which two statements about the network environment are true? (Choose two.)

  A. Interface fa0/1 and fa0/2 cannot communicate via Layer 2 switching.
  B. Interface fa0/1 and fa0/3 cannot communicate via Layer 2 switching.
  C. Interface fa0/2 and fa0/3 can communicate via Layer 2 switching.
  D. The two aaaa.aaaa.aaaa MAC address entries must be from the same VLANs.
  E. The two aaaa.aaaa.aaaa MAC address entries must be from different VLANs.
  A. Interface fa0/1 and fa0/2 cannot communicate via Layer 2 switching.
  E. The two aaaa.aaaa.aaaa MAC address entries must be from different VLANs.

• Question 989:

  Your company wants to connect an internal switch to the uplink provider switch. What method / feature / functions you need to enable to prevent initial / potential broadcast of internal information/topology? (forgot the correct wording)

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

• Question 990:

  Refer to the exhibit.

  

  Which option describes the reason for this message in a GLBP configuration?

  A. Unavailable GLBP active forwarder
  B. Incorrect GLBP IP address
  C. HSRP configured on same interface as GLBP
  D. Layer 2 loop
  D. Layer 2 loop

  ---

  This section provides information you can use to troubleshoot your configuration. %GLBP-4-DUPADDR: Duplicate address The error message indicates a possible layer2 loop and STP configuration issues. In order to resolve this issue, issue the show interface command to verify the MAC address of the interface. If the MAC address of the interface is the same as the one reported in the error message, then it indicates that this router is receiving its own hello packets sent. Verify the spanning-tree topology and check if there is any layer2 loop. If the interface MAC address is different from the one reported in the error message, then some other device with a MAC address reports this error message. Note: GLBP members communicate between each other through hello messages sent every 3 seconds to the multicast address

  224.0.0.102 and User Datagram Protocol (UDP) port 3222 (source and destination). When configuring the multicast boundary command, permit the Multicast address by permit 224.0.0.0 15.255.255.255.

  Reference:

  http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_example0918 6a00807d2520.shtml#dr