CCIP BGP + MPLS Exam (BGP + MPLS) : 642-691 Exam
642-691 BGP+ MPLS
BGP + MPLS Exam

Exam Number: 642-691
Associated Certifications: CCIP
Duration: 90 minutes (60 – 70 questions)
Available Languages: English
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Exam Description Exam Topics Recommended Training Additional Resources
Exam Description
The BGP+MPLS exam is the quickest way for currently certified CCIP (Cisco Certified Internetwork Professionals) to obtain recertification. The exam tests skills and knowledge pertaining to the Configuring BGP on Cisco Routers (BGP) and Implementing Cisco MPLS (MPLS) courses. BGP+MPLS may be taken to recertify your CCIP certification. It may also be taken in place of the BGP and MPLS exams required for the CCIP certification.

Exam Topics
The following information provides general guidelines for the content likely to be included on the BGP+MPLS Exam. However, other related topics may also appear on any specific delivery of the exam.

Technology
Understand and explain Core MPLS technology and concepts
Understand and explain MPLS VPN technology and concepts
Understand and explain basic BGP concepts and operations
Understand and explain how to Scale IGP and BGP in Service Provider Networks

Basic Implementation & Configuration
Explain and implement Frame-mode MPLS operations on Cisco IOS Platforms
Explain and implement Cell-mode MPLS operations on Cisco IOS Platforms
Explain and implement BGP Route Selection Using Policy Controls on Cisco IOS Platforms
Explain and implement BGP Route Selection Using BGP Attributes on Cisco IOS Platforms
Explain and implement Customer-to-Provider Connectivity with BGP on Cisco IOS Platforms
Explain and implement BGP Transit Autonomous System on Cisco IOS Platforms
Explain and implement IBGP connectivity using BGP Route Reflectors on Cisco IOS Platforms
Explain and implement BGP Confederations on Cisco IOS Platforms

Advanced Configuration
Explain and implement Advanced BGP Configuration on Cisco IOS Platforms
Explain and implement MPLS VPN operations on Cisco IOS Platforms
Explain and implement OSPF inside an MPLS VPN

Exam Number/Code: 642-691
Exam Name:CCIP BGP + MPLS Exam (BGP + MPLS)

“CCIP BGP + MPLS Exam (BGP + MPLS)”, also known as 642-691 exam, is a Cisco certification. With the complete collection of questions and answers, Actualtests has assembled to take you through 96 Q&As to your 642-691 Exam preparation. In the 642-691 exam resources, you will cover every field and category in CCIP helping to ready you for your successful Cisco Certification.
Free Demo Download Actualtests offers free demo for 642-691 exam (CCIP BGP + MPLS Exam (BGP + MPLS)). You can check out the interface, question quality and usability of our practice exams before you decide to buy it.

Exam DetailsThe BGP+MPLS exam is the quickest way for currently certified CCIP (Cisco Certified Internetwork Professionals) to obtain recertification. The exam tests skills and knowledge pertaining to the Configuring BGP on Cisco Routers (BGP) and Implementing Cisco MPLS (MPLS) courses. BGP+MPLS may be taken to recertify your CCIP certification. It may also be taken in place of the BGP and MPLS exams required for the CCIP certification.

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QUESTION 11:
Between which types of routers are VPNv4 BGP routes propagated?
A. CE and PE
B. PE and P
C. CE and P
D. P and P
E. PE and PE
F. CE and CE
Answer: E
QUESTION 12:
In a managed CE router VPN implementation, what information does the service
provider need access to on the customer’s CE router?
A. Access to all customer routes
B. Access to all the customer’s simple VPN VRF
C. Access to the customer’s CE router loopback addresses
D. Access to the static routes of the customer’s CE router
Answer: C
QUESTION 13:
SIMULATION
Network Topology Exhibit
642-691
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Certkiller .com is a stock broker service that is using EIGRP AS 1 as the IGP in its
network. Certkiller .com has decided to establish connectivity between the New York
site and the Los Angeles site. NiceNet, a service provider, has been selected by
Certkiller .com to provide the connectivity between the two sites.
For this implementation NiceNet is using a MPLS VPN solution. NiceNet has
already established MPLS connectivity between all of its PE routers. MPBGP
connectivity has also been established on all PE routers.
Certkiller .com has successfully completed all necessary tasks on the CE routers, and
NiceNet has successfully completed all necessary MPLS VPN configuration tasks on
PE12. Your task is to successfully complete the implementation of the VPN
connection by configuring the MPLS VPN on PE11 using the following information:
Privileged mode password: Certkiller
EIGRP is to be used as the PE – CE protocol for the VPN
MPBGP is being used to propagate VPN routing information between PE routers.
The interface supporting the Certkiller .com is Serial 0/0.101 and will have an IP
address of 150.1.119.18 255.255.255.240
The following has been assigned to Certkiller .com’s VPN:
The VRF_name is Certkiller _22
The RD is 22:10.
The route target for import is 21:10.
The route target for export is 21:10.
Configure EIGRP between CE11A and PE11 using AS number 10.
Redistribute from BGP to EIGRP AS 10 using a metric string of 10000 100 255 1
1500.
Redistribute from EIGRP AS 10 to BGP using metric string of 1.
VPN is operational when you see the routes for both the local (10.1.11.0) and the
remote (10.1.12.0) sites in the VRF routing table.
Click on the host computer to start the simulation.
642-691
Actualtests.com – The Power of Knowing
Answer:
ip cef
ip vrf Customer_6
rd 6:10
route-target import 14:10 !! these lines can be replaced by route-target
both 14:10
route-target export 14:10
Interface s0/0
ip vrf forwarding Customer_6
ip address 150.1.244.18 255.255.255.240
router bgp xx
address-family vpnv4
address-family ipv4 vrf Customer_6
neighbor x.x.x.x remote-as xx activate
redistribute eigrp metric 1
router eigrp 10
address-family ipv4 vrf Customer_6
network 10.1.11.0
network 10.1.12.0
redistribute BGP XX ! not enough info in lab sim
default-metric 10000 100 255 1 1500
QUESTION 14:
Network topology exhibit
Based on the exhibit, what is the correct BGP confederation required on Certkiller 4?
A. router bgp 65001
bgp confederation indentifier 65101
bgp confederation peers 65002 65003
neighbor 10.3.3.5 remote-as 65001
neighbor 10.1.1.2 remote-as 65002
neighbor 10.2.2.3 remote-as 65003
neighbor 192.168.1.1 remote-as 65102
B. router bgp 65001
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Actualtests.com – The Power of Knowing
bgp confederation indentifier 65001
bgp confederation peers 65002 65003
neighbor 10.3.3.5 remote-as 65001
neighbor 10.1.1.2 remote-as 65002
neighbor 10.2.2.3 remote-as 65003
neighbor 192.168.1.1 remote-as 65102
C. router bgp 65101
bgp confederation peers 65001 65002 65003
neighbor 10.3.3.5 remote-as 65001
neighbor 10.1.1.2 remote-as 65002
neighbor 10.2.2.3 remote-as 65003
neighbor 192.168.1.1 remote-as 65102
D. router bgp 65001
bgp confederation peers 65002 65003
neighbor 10.3.3.5 remote-as 65001
neighbor 10.1.1.2 remote-as 65002
neighbor 10.2.2.3 remote-as 65003
neighbor 192.168.1.1 remote-as 65102
Answer: A
Explanation:
router bgp 65001 % Confed AS number, not the real BGP AS number as seen by real
EBGP neighbor
bgp confederation identifier 65101 % Actual AS number as seen by real EBGP peer.
The confederation identifier refers to external AS number
neighbor 10.3.3.5 remote-as 65001
For B,C and D, they all have the incorrect bgp confederation identifier
QUESTION 15:
How would you implement an overlapping VPN when the sites contained in the
overlapping portion of two simple VPNs contain an overlapping address space?
A. Combine the overlapping VPN with a central service VPN.
B. Implement a NAT service to provide unidirectional address translation.
C. Implement a dual NAT service with a registered address to be imported and exported
between the two central sites.
D. Disable routing updates between the overlapping spaces and use a DNS
implementation.
E. Disable routing updates between the overlapping spaces and use static routing
Answer: C
642-691
Actualtests.com – The Power of Knowing
QUESTION 16:
What are two characteristics of BGP confederations? (Choose two)
A. All routers within the BGP confederation must support BGP confederations.
B. The member AS numbers used with the confederation are visible from outside the
confederation.
C. An Intra-Confederation EBGP session behaves like an EBGP session when
propagating routing updates.
D. Intra-Confederation EBGP neighbors must be directly connected or ebgp-multihop
must be configured.
Answer: A, D
QUESTION 17:
Network topology exhibit.
Why would Certkiller 2 accept or reject the BGP update from Certkiller 13 about the
172.0.0.0/8 prefix?
A. Certkiller 2 will reject BGP update to avoid a potential routing loop.
B. Certkiller 2 will accept the BGP update it is selected as the best path by the BGP route
selection process.
C. Certkiller 2 will reject the BGP update because it already has an OSPF (IGP) route to
reach the 172.0.0.0/8 prefix
D. Certkiller 2 will accept the BGP update and it will be used as a backup path to reach
the 172.0.0.0/8 prefix if the OSPF (IGP) route is not available.
Answer: A
QUESTION 18:
Exhibit
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Neighbor 2.2.2.2 maximum-prefix 1000
What is the purpose of the BGP configuration command in the exhibit?
A. It limits the number of prefixes that can be sent to neighbor 2.2.2.2 to 1000.
B. It limits the number of prefixes that can be sent to and received from the 2.2.2.2
neighbor to 1000.
C. If the number of prefixes sent to the 2.2.2.2 neighbor exceeds 650, the router starts to
generate a warning message.
D. If the number of prefixes received from the 2.2.2.2 neighbor exceeds 650, the router
starts to generate a warning message.
E. If the number of prefixes received from the 2.2.2.2 neighbor exceeds 1000, the
neighbor relationship to 2.2.2.2 will be dropped.
Answer: E
QUESTION 19:
Which two statements are true about an EBGP session or an IBGP session? (Choose
two.)
A. IBGP uses AS-Path to detect routing information loops within the AS.
B. EBGP routes have a default Admin Distance of 20 and IBGP routes have a default
Admin Distance of 200.
C. No BGP attributes are changed in EBGP updates except for the next-hop attribute if
next-hop-self is configured.
D. Routes learned from an EBGP peer not advertised to another EBGP peer to prevent
routing information loops.
E. IBGP uses split horizon to prevent routing information loops; routes learned from an
IBGP peer are not advertised to another IBGP peer.
Answer: B, E
QUESTION 20:
Network topology exhibit
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Actualtests.com – The Power of Knowing
What is the proper configuration on Certkiller 2 to support a single BGP session
between Certkiller 2 and Certkiller 3 and to enable load sharing across the two links?
A. router bgp 65101
neighbor 192.168.1.18 remote-as 65102
neighbor 192.168.1.34 remote-as 65102
neighbor 192.168.1.38 update-source loopback1
neighbor 192.168.1.34 update-source loopback1
maximum-paths 2
B. router bgp 65101
neighbor 192.168.1.18 remote-as 65102
neighbor 192.168.1.34 remote-as 65102
neighbor 192.168.1.38 ebgp-multihop 2
neighbor 192.168.1.34 ebgp-multihop 2
maximum-paths 2
C. router bgp 65101
neighbor 3.3.3.3 remote-as 65102
neighbor 3.3.3.3 egbp-multihop 2
neighbor 3.3.3.3 update-source loopback1
!
ip route 3.3.3.3 255.255.255.255 192.168.1.18
ip route 3.3.3.3 255.255.255.255 192.168.1.34
D. router bgp 65101
neighbor 3.3.3.3 remote-as 65102
neighbor 3.3.3.3 update-source loopback1
maximum-paths 2
!
ip route 3.3.3.3 255.255.255.255 192.168.1.18
ip route 3.3.3.3 255.255.255.255 192.168.1.34
Answer: D
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