NEW 2022 Certification Sample Questions 300-515 Dumps & Practice Exam [Q21-Q40]

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NEW 2022 Certification Sample Questions 300-515 Dumps & Practice Exam

300-515 Deluxe Study Guide with Online Test Engine

NEW QUESTION 21
What is a requirement to share VRF reachability information to all members of a VPN when using IPv6?

PE and CE routers must be running BGP as the PE-CE routing protocol

PE routers must have MPLS disabled and be running MP-BGP between all P and PE routers.

PE routers must be running MP-BGP and bgp default ipv4-unicast must be disabled

All PEs must have the same VRFs configured.

NEW QUESTION 22
Refer to the exhibit.

Which result occurs when PE1 learns a new MAC address and all three PEs are enabled with EVPN native?

A system notification is sent to the network administrator that triggers the manual configuration of the new MAC address on PE2 and PE3.

The new MAC address is sent by BGP to PE2 and PE3 as a Type 2 BGP route.

The MAC address is entered into the CAM table and is classified for use on the native VLAN

The MAC address is entered into the CAM table only if it is learned on the native VLAN.

Reference: https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k-r6-4/lxvpn/configuration/ guide/b-l2vpn-cg-asr9000-64x/b-l2vpn-cg-asr9000-64x_chapter_01011.html

NEW QUESTION 23
An engineer is troubleshooting an ongoing network outage. Which command should he use that can display the live log files for a process or service running on a network device?

traceroute

show run

ping

debug

NEW QUESTION 24
Refer to the exhibit.

A customer carrier running MPLS VPN wants to utilize a backbone carrier to forward traffic and exchange VPNv4 prefixes between the two customer carriers networks depicted. Which two sets of routers must establish MP-iBGP sessions? (Choose two.)

BB-PE-A and CC-PE-B

CC-PE-A and CC-PE-B

BB-PE-A and BB-PE-B

CC-PE-A and BB-PE-A

BB-PE-A and BB-P-A

CC-PE-A and CC-P-A

Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_ias_and_csc/configuration/12-2sx/mp-ias- and-csc-12-2sx-book/mp-carrier-bgp.html

NEW QUESTION 25
While troubleshooting EoMPLS configuration problems, which three parameters should an engineer match between the two ends of the pseudowire configurations? (Choose three.)

VLAN name

Xconnect group name

EFP subinterface number

pseudowire ID

MTU size

control word usage

Reference:
https://www.cisco.com/c/en/us/support/docs/multiprotocol-label-switching-mpls/mpls/213238-mpls- l2vpn-pseudowire.html

NEW QUESTION 26
Refer to the exhibit.

Which effect of this configuration is true?

It configures VPWS multihomed.

It configures VPWS single homed.

It configures an IPv4 peering with 192.168.1.1

It configures MPLS traffic engineering.

Reference:
https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2019/pdf/BRKSPG-2798.pdf

NEW QUESTION 27
An engineer is investigating an MPLS LDP issue. Which command should an engineer use on a Cisco IOS XE device to display the contents of the LFIB?

show mpls forwarding-table

show mpls ldp neighbors

show mpls ldp labels

show mpls ldp bindings

Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mpls/command/mp-cr-book/mp-s2.html

NEW QUESTION 28
Which optional information can be included with an IPv6 ping to support the troubleshooting process?

IPv4 IP address

source MAC address

destination MAC address

IPv6 hostname

Reference:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6/configuration/xe-3s/ipv6-xe-36s-book/ip6-mng-apps.html

NEW QUESTION 29
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?

the entry of an inconsistent IP address and mask for VRF Selection

an attempt to configure a VRF instance on an interface that already has VRF Selection configured

an attempt to remove a VRF Selection entry that does not exist

an attempt to configure a VRF Selection table that does not exist

Reference: https://www.cisco.com/c/en/us/td/docs/ios/12_2/12_2sz/feature/guide/122szvrf.html

NEW QUESTION 30
Refer to the exhibit.

Which statement about this command is true?

It must be configured on each PE router to enable the PE routers to receive multicast traffic for this particular MVRF.

It is used to set the designated router on a link using PIM-SM.

It must be configured on the PE and CE router to enable MP-BGP to send labels for CSC.

It is used to set the router that will server as the root bridge for STP.

Reference: https://www.cisco.com/c/en/us/td/docs/routers/asr1000/configuration/guide/chassis/asrswcfg/ lsmmldp.html

NEW QUESTION 31
With Layer 3 MPLS VPN implementations on Cisco IOS XR PE routers, an interface is assigned to a VRF using the vrf command in which configuration mode?

RP/0/RP0/CPU0:PE(config-bgp)#

RP/0/RP0/CPU0:PE(config-if)#

RP/0/RP0/CPU0:PE(config-bgp-af)#

RP/0/RP0/CPU0:PE(config-vrf)#

Section: Layer 3 VPNs
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/ios_xr_sw/iosxr_r3-7/mpls/configuration/guide/ gc37v3.html

NEW QUESTION 32
Which BGP feature causes to replace the AS number of originating router with the AS number of the sending router?

route reflectors

route dampening

confederations

AS override

Reference:
<https://community.cisco.com/t5/networking-documents/understanding-bgp-as-override-feature/ta- p/3111967>

NEW QUESTION 33
With Layer 3 MPLS VPN implementations on Cisco IOS XR PE routers, an interface is assigned to a VRF using the vrf command in which configuration mode?

RP/0/RP0/CPU0:PE(config-bgp)#

RP/0/RP0/CPU0:PE(config-if)#

RP/0/RP0/CPU0:PE(config-bgp-af)#

RP/0/RP0/CPU0:PE(config-vrf)#

Reference:
https://www.cisco.com/c/en/us/td/docs/ios_xr_sw/iosxr_r3-7/mpls/configuration/guide/gc37v3.html

NEW QUESTION 34
Which BGP feature causes to replace the AS number of originating router with the AS number of the sending router?

route reflectors

route dampening

confederations

AS override

Reference:
https://community.cisco.com/t5/networking-documents/understanding-bgp-as-override-feature/ta- p/3111967

NEW QUESTION 35
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?

the entry of an inconsistent IP address and mask for VRF Selection

an attempt to configure a VRF instance on an interface that already has VRF Selection configured

an attempt to remove a VRF Selection entry that does not exist

an attempt to configure a VRF Selection table that does not exist

Reference:
https://www.cisco.com/c/en/us/td/docs/ios/12_2/12_2sz/feature/guide/122szvrf.html

NEW QUESTION 36
Refer to the exhibit.

An engineer is implementing an MPLS P2MP TE solution. Which type of router can serve as the midpoint router and the tailend router in this P2MP TE network implementation?

headend

source

transit

bud

Explanation
https://www.cisco.com/c/en/us/td/docs/routers/asr920/configuration/guide/mpls/mp-te-path-setup- xe-3s-asr920-book/mp-te-path-setup-xe-3s-asr920-book_chapter_01.html

NEW QUESTION 37
Which two BGP attributes prevent loops in a route reflector environment? (Choose two.)

cluster ID

local preference

origin

originator ID

AS_PATH

Reference: https://www.ciscopress.com/articles/article.asp?p=2756480&seqNum=10

NEW QUESTION 38
Refer to the exhibit.

A technician is troubleshooting a connectivity issue and notices that there is no IS-IS adjacency between R1 and R2. What can the technician change to bring the IS-IS adjacency up?

Change R2’s net address to be in the same area as R1.

Change R1’s is-type to level-2-only

Change R1’s net address to be in the same area as R2.

Change R2’s configuration to no longer set the overload bit.

NEW QUESTION 39
An engineer is troubleshooting an EoMPLS circuit on a Cisco IOS XR router interface that removes a VLAN from the distribution layer. Which configuration should the engineer apply in order to accomplish the task?

interface GigabitEthernet 0/10.l2transport
encapsulation dot1q 10
rewrite ingress tag pop 1 symmetric
l2vpn
xconnect group 103588
p2p 103588
interface GigabitEthernet 0/10.10
neighbor ipv4 10.10.10.2 pw-id 103588

interface GigabitEthernet 0/10.10
encapsulation dot1q 10
rewrite ingress tag pop 1 symmetric
l2vpn
xconnect group 103588
p2p 103588
interface GigabitEthernet 0/10.10
neighbor ipv4 10.10.10.2 pw-id 103588

interface GigabitEthernet 0/10.10 l2transport
encapsulation dot1q 10
l2vpn
xconnect group 103588
p2p 103588
interface GigabitEthernet 2/10.10
neighbor ipv4 10.10.10.2 pw-id 103588

interface GigabitEthernet 0/10.10 l2transport
encapsulation dot1q 10
rewrite ingress tag translate 1-to-1 dot1ad 10
symmetric
l2vpn
xconnect group 103588
p2p 103588
interface GigabitEthernet 0/10.10
neighbor ipv4 10.10.10.2 pw-id 103588

Section: Layer 2 VPNs

NEW QUESTION 40
Refer to the exhibit.

While provisioning a new BGP session between the PE and CE router, you issue the as- override command. Which statement describes modification of the prefix before being sent to the CE router (10.10.10.1)?

The fourth AS changes, but no other autonomous systems change.

The first and fourth autonomous systems change.

The second and third autonomous systems change.

The first AS changes, but no other autonomous systems change.

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