300-515

300-515 practice questions, page 4 of 5, with answer review and explanations.

Question 16

While configuring the VRF Selection feature, you get an error message after typing the below statement: Router(config)#no vrf selection source 172.16.0.0 255.255.0.0 vrf VRF1 Which action caused this message?

  1. the entry of an inconsistent IP address and mask for VRF Selection
  2. an attempt to configure a VRF instance on an interface that already has VRF Selection configured
  3. an attempt to remove a VRF Selection entry that does not exist
  4. an attempt to configure a VRF Selection table that does not exist

Question 17

Which two BGP attributes prevent loops in a route reflector environment? (Choose two.)

  1. cluster ID
  2. local preference
  3. origin
  4. originator ID
  5. AS_PATH

Question 18

An engineer needs to improve MPLS network management by implementing a set of tools to support the NOC engineers in troubleshooting network failures. Which feature should the engineer implement to check the connectivity of the MPLS LSP between the ingress and egress PE routers?

  1. MPLS OAM
  2. MPLS-TP
  3. LDP autodiscovery
  4. extended ping

Question 19

Which mechanism reduces the network flooding caused by host ARP learning behavior?

  1. ARP suppression
  2. storm control
  3. root guard
  4. BPDU guard

Question 20

Refer to the exhibit. A network operator is implementing EVPN IRB on PE1. Which two command placements enable the advertisement of Type 2 routes and what information do Type 2 routes contain? (Choose two.)

  1. The operator adds in "host-routing" under the VRF EVPN.
  2. Type 2 routes contain MAC/IP information.
  3. Type 2 routes contain Ethernet Auto-Discovery information.
  4. The operator adds in "host-routing" under the BVI651 interface.
  5. Type 2 routes contain inclusive source-specific multicast route information.