NEW QUESTION 1
Which VPN technology uses the Group Domain of Interpretation as the keying protocol and IPsec for encryption that is often deployed over a private MPLS core network?

• A. DMVPN
• B. GET VPN
• C. SSL VPN
• D. L2TPv3

Answer: B

Explanation: http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6635/ps7180/deployment_guide_c07_554 713.html

NEW QUESTION 2
Refer the exhibit.




On PE7, how many multiprotocol IBGP routes are learned from PE8 and what is the next-hop IP address? {Choose two.}

• A. 1
• B. 2
• C. 3
• D. 10.8.1.1
• E. 172.16.8.1
• F. 192.168.108.81

Answer: BE

Explanation: Show ip bgp vpnv4 all --- i tag field is the answer

NEW QUESTION 3
Within the service provider IP/MPLS core network, what must be implemented to enable Layer 3 MPLS VPN services?

• A. IS-IS or OSPF on all the PE and P routers
• B. MP-BGP between the PE routers
• C. RSVP on all the PE and P routers
• D. targeted LDP between the PE routers
• E. LDP between the CE and PE routers

Answer: B

NEW QUESTION 4
Which two methods can be used for VPLS PW signaling? {Choose two.}

• A. static
• B. BGP
• C. IGP
• D. LDP
• E. RSVP

Answer: BD

Explanation:

NEW QUESTION 5
Which VPN technology is an example of a full-mesh VPN?

• A. VTI
• B. GRE VPN
• C. Frame Relay L2 VPN
• D. MPLS L3VPN

Answer: D

NEW QUESTION 6
Which three functions are performed by the PE router in an MPLS Layer 3 VPN? {Choose three.}

• A. exchanges routing updates with the CE router
• B. translates the CE routing information into VPNv4 routes
• C. exchanges VPNv4 routes with other PE routers over MP-BGP
• D. imports and exports RTs that are received from the P routers
• E. exchanges RDs with the P routers
• F. exchanges VPN labels with the CE routers

Answer: ABC

Explanation: http://www.cisco.com/en/US/docs/routers/crs/software/crs_r4.1/lxvpn/configuration/guide/vc41v3.html How MPLS L3VPN Works
MPLS VPN functionality is enabled at the edge of an MPLS network. The PE router performs the following tasks:
•Exchanges routing updates with the CE router
•Translates the CE routing information into VPN version 4 {VPNv4} and VPN version 6 {VPNv6} routes
•Exchanges VPNv4 and VPNv6 routes with other PE routers through the Multiprotocol Border Gateway Protocol {MP- BGP}

NEW QUESTION 7
In MPLS Layer 3 VPN implementations, which mechanism is used to control which routes are imported to a VRF?

• A. RT
• B. RD
• C. VC ID
• D. PW ID
• E. VRF ID

Answer: A

Explanation: http://blog.initialdraft.com/archives/1537/

NEW QUESTION 8
Which two protocols can be used for VPLS signaling on a Cisco IOS XR router? {Choose two.}

• A. BGP
• B. LDP
• C. TDP
• D. RSVP
• E. PBB

Answer: AB

NEW QUESTION 9
Which three security features can be implemented on PEs inside a Cisco IOS XR VPLS environment? {Choose three.}

• A. MAC flooding
• B. neighbor VC storm-control
• C. interface storm-control
• D. MAC learning
• E. DHCP snooping
• F. MAC withdrawal

Answer: ABC

NEW QUESTION 10
Which Layer 2 VPN technology is implemented over an IP core network without the need for MPLS?

• A. VPLS
• B. VPWS
• C. AToM
• D. L2TPv3

Answer: D

Explanation: http://www.cisco.com/en/US/docs/ios/12_3t/12_3t2/feature/guide/gtl2tpv3.html#wp1040784
The Layer 2 Tunnel Protocol Version 3 feature expands on Cisco support of the Layer 2 Tunnel Protocol Version 3 {L2TPv3}. L2TPv3 is an Internet Engineering Task Force {IETF} l2tpext working group draft that provides several enhancements to L2TP for the capability to tunnel any Layer 2 payload over L2TP.
Specifically, L2TPv3 defines the L2TP protocol for tunneling Layer 2 payloads over an IP core network using Layer 2 virtual private networks {VPNs}. Benefits of this feature include the following:
•L2TPv3 simplifies deployment of VPNs
•L2TPv3 does not require Multiprotocol Label Switching
•L2TPv3 supports Layer 2 tunneling over IP for any payload

NEW QUESTION 11
A Cisco IOS XR device is acting as a PE. It must have an iBGP VPNv4 session with the other PE 2.2.2.2 using source loopback 0. Which configuration achieves this goal?
A}
B}
C}
D}

• A. Exhibit A
• B. Exhibit B
• C. Exhibit C
• D. Exhibit D

Answer: B

NEW QUESTION 12
In hierarchical VPLS implementations, which two access architectures can be used between the UPE and NPE? {Choose two.}

• A. EoMPLS
• B. MP-BGP
• C. Frame Relay
• D. 802.1ad

Answer: AD

Explanation: http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/12.2_52_ey/configuration/gui de/swmpls.html#wp1244272
H-VPLS uses spoke connections, usually between Layer 2 switches acting as the CE and PE devices at the service provider's point-of presence {POP}. The spoke connections can be either an IEEE 802.1Q tagged connection or an MPLS LSP.

NEW QUESTION 13
Which option is the correct command to define an interface as Layer 2 on the Cisco ASR 9000?

• A. RP/0/RSP0/CPU0:R1{config}#int gigabitEthernet 0/6/0/0 l2transport
• B. RP/0/RSP0/CPU0:R1{config}#int gigabitEthernet 0/6/0/0 layer2
• C. RP/0/RSP0/CPU0:R1{config}#int gigabitEthernet 0/6/0/0 switchport
• D. RP/0/RSP0/CPU0:R1{config}#int gigabitEthernet 0/6/0/0 xconnect

Answer: A

Explanation:

NEW QUESTION 14
Which BGP extended community is used to control the distribution of VPN routing information and to identify routers that may receive a set of routes that carry the community?

• A. SOO
• B. RT
• C. opaque
• D. route origin
• E. RD

Answer: B

Explanation: http://blog.initialdraft.com/archives/1537/
Route Target is a 64-bits BGP community used for tagging prefixes. When exporting prefixes from the VRF, we add to the prefixes a Route-Target community, so when the PE in the remote site has to import prefixes into the VRF, it can easily identify which prefixes to import.

NEW QUESTION 15
When implementing MPLS Layer 3 VPNs with customers running OSPF as the CE-PE routing protocol, which situation will require a sham link to be implemented in the MPLS backbone?

• A. to connect customer sites in different OSPF areas
• B. to connect customer sites in the same OSPF area
• C. to prevent OSPF routing loops when a customer site has redundant CE-PE connections
• D. if there is a backdoor link between the CE routers, to ensure that the backdoor link is used only to back up the primary connection through the MPLS VPN

Answer: D

Explanation: http://www.cisco.com/en/US/docs/ios/12_2t/12_2t8/feature/guide/ospfshmk.html

NEW QUESTION 16
Refer to the exhibit.

Which two descriptions outline the traffic flow among the three sites? {Choose two.}

• A. The MNL site communicates with the XYZ and ABC sites.
• B. The XYZ and ABC sites communicate using the default route that points to the MNL site.
• C. XYZ sees the MNL and ABC routes.
• D. ABC sees the MNL and XYZ routes.
• E. The MNL site acts as a central site for the ABC and XYZ sites.

Answer: AE