Cisco® 300-515 Exam Practice Questions (P. 4)
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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?
Router(config)#no vrf selection source 172.16.0.0 255.255.0.0 vrf VRF1
Which action caused this message?
- Athe entry of an inconsistent IP address and mask for VRF Selection
- Ban attempt to configure a VRF instance on an interface that already has VRF Selection configured
- Can attempt to remove a VRF Selection entry that does not exist
- Dan attempt to configure a VRF Selection table that does not exist
Correct Answer:
C
Reference:
https://www.cisco.com/c/en/us/td/docs/ios/12_2/12_2sz/feature/guide/122szvrf.html
C
Reference:
https://www.cisco.com/c/en/us/td/docs/ios/12_2/12_2sz/feature/guide/122szvrf.html
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Question #17
Which two BGP attributes prevent loops in a route reflector environment? (Choose two.)
- Acluster ID
- Blocal preference
- Corigin
- Doriginator ID
- EAS_PATH
Correct Answer:
AD
Reference:
https://www.ciscopress.com/articles/article.asp?p=2756480&seqNum=10
AD
Reference:
https://www.ciscopress.com/articles/article.asp?p=2756480&seqNum=10
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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?
Which feature should the engineer implement to check the connectivity of the MPLS LSP between the ingress and egress PE routers?
- AMPLS OAM
- BMPLS-TP
- CLDP autodiscovery
- Dextended ping
Correct Answer:
A
Reference:
https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k_r5-3/mpls/configuration/guide/b-mpls-cg53x-asr9k/b-mpls-cg53x- asr9k_chapter_01000.html
A
Reference:
https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k_r5-3/mpls/configuration/guide/b-mpls-cg53x-asr9k/b-mpls-cg53x- asr9k_chapter_01000.html
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Question #19

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.)
- AThe operator adds in "host-routing" under the VRF EVPN.
- BType 2 routes contain MAC/IP information.
- CType 2 routes contain Ethernet Auto-Discovery information.
- DThe operator adds in "host-routing" under the BVI651 interface.
- EType 2 routes contain inclusive source-specific multicast route information.
Correct Answer:
BD
Reference:
https://www.cisco.com/c/en/us/td/docs/iosxr/ncs5500/vpn/61x/b-ncs5500-l2vpn-configuration-guide-61x/b-ncs5500-l2vpn-configuration-guide-
61x_chapter_01010.html
BD
Reference:
https://www.cisco.com/c/en/us/td/docs/iosxr/ncs5500/vpn/61x/b-ncs5500-l2vpn-configuration-guide-61x/b-ncs5500-l2vpn-configuration-guide-
61x_chapter_01010.html
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Question #20
You try to configure MPLS VPN VRF Selection based on a source IP address on an interface that has VRF configured, but you receive an error.
Which action must you take to correct the problem?
Which action must you take to correct the problem?
- AChange the source IP address.
- BAdd the IP address to the VRF table.
- CRemove the VRF from the interface.
- DConfigure static routes for the VRF.
Correct Answer:
C
Reference:
https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/vrfselec.html
C
Reference:
https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/vrfselec.html
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