Cisco 300-115 Online Practice Questions and Exam Preparation

Cisco 300-115 Online Questions & Answers

• Question 111:

  A network engineer must set the load balance method on an existing port channel. Which action must be done to apply a new load balancing method?

  A. Configure the new load balancing method using port-channel load-balance.
  B. Adjust the switch SDM back to "default".
  C. Ensure that IP CEF is enabled globally to support all load balancing methods.
  D. Upgrade the PFC to support the latest load balancing methods.
  A. Configure the new load balancing method using port-channel load-balance.

  ---

  EtherChannel balances the traffic load across the links in a channel through the reduction of part of the binary pattern that the addresses in the frame form to a numerical value that selects one of the links in the channel. EtherChannel load balancing can use MAC addresses or IP addresses, source or destination addresses, or both source and destination addresses. The mode applies to all EtherChannels that are configured on the switch. You configure the load balancing and forwarding method with use of the port- channel load-balance {dst-ip | dst-mac | src-dst-ip | src-dst-mac | src-ip | src-mac} global configuration command.

  Reference: http://www.cisco.com/c/en/us/support/docs/lan-switching/etherchannel/12023- 4.html

• Question 112:

  A question about the relationship between RSTP and spanning-tree.

  A. RSTP is compatible with STP.
  B. RSTP is not backward compatible with STP.
  C. It will create STP instance per VLAN.
  D. http://certbus.com
  A. RSTP is compatible with STP.

• Question 113:

  If you want to enable the Layer 3 feature of an interface, which command will you configure?

  A. configure IP address
  B. configure switchport
  C. configure no switchport
  D. http://certbus.com
  C. configure no switchport

• Question 114:

  If HSRP group number is 45 what would be the MAC address? (Basically conversion of digit to hexadecimal with group of 16.)

  A. 00-00-0c-07-ac-2D
  B. https://www.CertBus.com/300-115.html
  A. 00-00-0c-07-ac-2D

• Question 115:

  Which three characteristics of AAA with TACACS+ are true? (Choose three.)

  A. It runs on UDP port 1812
  B. It is a standards-based implementation.
  C. It uses a client-server architecture.
  D. It is a Cisco-proprietary implementation.
  E. It runs on TCP port 49.
  F. It uses a client-private cloud architecture.
  C. It uses a client-server architecture.
  D. It is a Cisco-proprietary implementation.
  E. It runs on TCP port 49.

• Question 116:

  In regards to Cisco Virtual Switching System ,which technology is needed between two switches for them to act as one network element and share control information and data traffic?

  A. EtherChannel
  B. trunk
  C. Virtual Switch Link
  D. virtual port channel
  C. Virtual Switch Link

• Question 117:

  What type of attack is mitigated by DAI?

  A. Man-in-the-middle
  B. www.certbus.com
  C. www.certbus.com
  D. www.certbus.com
  A. Man-in-the-middle

• Question 118:

  You administer a network that uses two routers, R1 and R2, configured as an HSRP group to provide redundancy for the gateway. Router R1 is the active router and has been configured as follows: R1#configure terminal R1(config)#interface fa0/0 R1(config-if)#ip address 10.10.0.5 255.255.255.0 R1(config-if)#standby 1 priority 150 R1(config-if)#standby preempt delay minimum 50 R1(config-if)#standby 1 track interface fa0/2 15 R1(config-if)#standby 1 ip 10.10.0.20 Which of the following describes the effect the "standby preempt delay minimum 50" command will have on router R1? (Select the best answer.)

  A. The HSRP priority for router R1 will increase to 200.
  B. Router R1 will become the standby router if the priority drops below 50.
  C. The HSRP priority for router R1 will decrease to 50 points when Fa0/2 goes down.
  D. Router R1 will wait 50 seconds before attempting to preempt the active router.
  D. Router R1 will wait 50 seconds before attempting to preempt the active router.

• Question 119:

  Which two VLAN ranges can you add, modify, or delete on a switch? (Choose two.)

  A. 2 through 4094
  B. 2 through 1001
  C. 1 through 1001
  D. 1005 through 4094
  E. 1006 through 4094
  B. 2 through 1001
  E. 1006 through 4094

• Question 120:

  Refer to the exhibit. Four switches configuration. SwitchA(config)#interface FastEthernet 0/1 SwitchA(config-if)#switchport mode access SwitchA(config-if)#switchport access vlan 10 SwitchB(config)#interface FastEthernet 0/1 SwitchB(config-if)#switchport mode access SwitchB(config-if)#switchport access vlan 10 SwitchC(config)#interface FastEthernet 0/1 SwitchC(config-if)#switchport mode access SwitchC(config-if)#switchport access vlan 10 SwitchD(config)#interface FastEthernet 0/1 SwitchD(config-if)#switchport mode access SwitchD(config-if)#switchport access vlan 20 These four switches are connected with trunk links. Which of the following is correct?

  A. All switches are able to communicate without Layer 3 device.
  B. Switches are not able to communicate without Layer 3 device.
  C. Switch D is not able to communicate with other switches without Layer 3 device.
  D. http://certbus.com
  C. Switch D is not able to communicate with other switches without Layer 3 device.