Updated Free Cisco 300-515 Test Engine Questions with 87 Q&As
The Best CCNP Service Provider 300-515 Professional Exam Questions
NEW QUESTION # 18
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.)
- A. BB-PE-A and BB-PE-B
- B. BB-PE-A and CC-PE-B
- C. BB-PE-A and BB-P-A
- D. CC-PE-A and CC-PE-B
- E. CC-PE-A and CC-P-A
- F. CC-PE-A and BB-PE-A
Answer: A,D
Explanation:
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 # 19
In Layer 3 MPLS VPN implementations, if some of the VPNv4 routes on one PE router do not appear on another PE router, what could be the problem?
- A. RD mismatch between the PE routers
- B. VRF name mismatch between the PE routers
- C. RD export and import configuration errors
- D. RT export and import configuration errors
Answer: D
Explanation:
Reference:
http://blog.initialdraft.com/archives/1537/
NEW QUESTION # 20
Refer to the exhibit.
An engineer has configured router 1 to provide shared services to clients behind router 2. To complete the implementation so that routes from router 1 are accepted, what must the engineer configure on router 2?
- A. with import route targets 101:102 and 202:201
- B. with export route targets 201:202 and 401:402
- C. with export route targets 301:202 and 101:102
- D. with import route targets 201:202 and 401:402
Answer: D
NEW QUESTION # 21
Refer to the exhibit.
Which statement describes the result of this configuration?
- A. R1 mutually redistributes routes between BGP 65001 and the OSPF process of VRF custabc.
- B. R1 redistributes BGP routes into the OSPF process of VRF custabc as E1 routes.
- C. R1 redistributes BGP routes into the OSPF process of VRF custabc as OIA routes.
- D. R1 redistributes BGP routes into the OSPF process of VRF custabc as E2 routes.
Answer: B
NEW QUESTION # 22
The CTO of a company requires the support of a network consultant to deliver an MPLS solution without resigning to a certain degree of redundancy and scalability. Which solution effectively scales to hundreds or thousands of sites?
- A. L2VPN by encapsulating multiple frame formats with interworking.
- B. L3VPN with direct LSP connectivity between all PEs.
- C. L3VPN using a hierarchical topology of N-PEs and U-PEs.
- D. L2VPN with the broadcast traffic processed at the ingress PE.
Answer: C
NEW QUESTION # 23
What must match in the EVPN and L2VPN configuration mode when configuring EVPN native in a router?
- A. interface
- B. EVI
- C. address family
- D. bridge domain
Answer: B
Explanation:
Reference:
https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k-r6-2/lxvpn/configuration/ guide/b-l2vpn-cg-asr9000-62x/b-l2vpn-cg-asr9000-62x_chapter_01011.html
NEW QUESTION # 24
Refer to the exhibit. PE1 and PE2 are exchanging VPNv4 routes for CE1 and CE2, and PE3 contains the default route to the internet. If the three devices are operating normally, which two conclusions describe this configuration? (Choose two.)
- A. All three routers must be running MP-BGP.
- B. The CE1 and CE2 VRFs can exchange routes only between their respective VRFs on PE1 and PE2.
- C. All three routers must be running a distance-vector routing protocol.
- D. Only the CE2 VRF can access the default route provided by the Internet VRF.
- E. The CE1 and CE2 VRFs can access the default route provided by the Internet VRF.
Answer: A,B
NEW QUESTION # 25 
Which statement describes the result of this BGP configuration?
- A. R1 operates using IPv4 and VPNv4 address families.
- B. R1 establishes an iBGP relationship with peer 192.168.1.1.
- C. R1 establishes a VPNv4 eBGP relationship with neighbor 192.168.1.1.
- D. R1 operates on IPv6 only because the bgp default ipv4-unicast command is missing.
Answer: B
NEW QUESTION # 26
How do Ethernet virtual circuits provide a way for service providers to maximize the use of VLAN tags?
- A. They separate the classification and forwarding concepts for VLAN tagging which allows multiple switch ports to use the same VLAN ID without it being configured globally.
- B. They add an additional tag to VLANs that allows up to two switch ports to use the same globally configured VLAN ID.
- C. They redefine the VLAN tag to include classification, forwarding, and QoS using MPLS labels and EXP bits
- D. They assign VLAN IDs to VTP domains so that the same VLAN ID are used more than once globally.
Answer: A
NEW QUESTION # 27
What must match in the EVPN and L2VPN configuration mode when configuring EVPN native in a router?
- A. interface
- B. EVI
- C. address family
- D. bridge domain
Answer: B
Explanation:
Section: Layer 2 VPNs
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k-r6-2/lxvpn/configuration/ guide/b-l2vpn-cg-asr9000-62x/b-l2vpn-cg-asr9000-62x_chapter_01011.html
NEW QUESTION # 28
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?
- A. traceroute
- B. ping
- C. debug
- D. show run
Answer: C
NEW QUESTION # 29
Refer to the exhibit.
A network engineer has been called to configure the four PE devices in order to enable full communication among the four CE devices connected to them. While starting to configure, he experienced a connectivity issue. Which two tasks should the engineer perform in order to begin the process correctly? (Choose two.)
- A. Configure PE3 to import route-targets 100:1 and 200:2.
- B. Configure PE2 to export route-targets 300:3 and 400:4.
- C. Configure PE1 to import route-targets 300:3 and 400:4.
- D. Configure PE4 to import route-targets 101:1 and 202:2.
- E. Configure PE3 to export route-targets 100:1 and 200:2.
Answer: A,E
NEW QUESTION # 30 
Refer to the exhibit. The CE router has established a BGP peering with the PE router, and the CE will use the core infrastructure of the PE as a backbone carrier to support CSC. Which additional task can you perform to complete the configuration?
- A. Configure static routing on the CE router.
- B. Configure the address-family ipv4 labeled-unicast command under the neighbor configuration of the CE router for the PE.
- C. Configure OSPF on the PE router.
- D. Change the rd value to 65001:65001 under the VRF section of the PE router.
Answer: C
Explanation:
Section: Layer 3 VPNs
NEW QUESTION # 31
In an Ethernet Virtual Circuit environment, which restriction do bridge domains have when STP is running?
- A. Bridge domains must be mapped to a different VLAN.
- B. The STP mode must be RSTP or PVST+
- C. The STP mode must be MSTP
- D. Bridge domains must belong to different MST instances.
Answer: C
NEW QUESTION # 32
Which optional information can be included with an IPv6 ping to support the troubleshooting process?
- A. destination MAC address
- B. IPv4 IP address
- C. IPv6 hostname
- D. source MAC address
Answer: C
Explanation:
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 # 33
Which two BGP attributes prevent loops in a route reflector environment? (Choose two.)
- A. originator ID
- B. AS_PATH
- C. cluster ID
- D. origin
- E. local preference
Answer: A,C
NEW QUESTION # 34
A customer has two sites over an MPLS cloud with Ethernet connections and requires one STP domain to be transparent over the MPLS provider. Which label-switching technology can the provider use without getting involved in learning the customer MAC addresses?
- A. H-VPLS
- B. EoMPLS
- C. L2TPV3
- D. VPLS
Answer: B
NEW QUESTION # 35
Which mechanism reduces the network flooding caused by host ARP learning behavior?
- A. BPDU guard
- B. storm control
- C. root guard
- D. ARP suppression
Answer: D
Explanation:
Reference:
https://www.cisco.com/c/en/us/products/collateral/switches/nexus-7000-series-switches/white- paper-c11-735015.html
NEW QUESTION # 36
An engineer is investigating an issue. Which command should an engineer use on a Cisco IOS XE device to display the contents of the LFIB?
- A. show mpls ldp labels
- B. show mpls forwarding-table
- C. show mpls ldp neighbors
- D. show mpls ldp bindings
Answer: B
NEW QUESTION # 37
In MPLS Layer 3 VPN implementations, which mechanism is used to control which routes are imported to a VRF?
- A. VC ID
- B. RT
- C. RD
- D. PW ID
- E. VRF ID
Answer: B
NEW QUESTION # 38
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