Try Cisco 642-889 Exam Questions – (Jan-2018 Dumps)

Due to rapidly growing in IT industry the Cisco 642-889 exam is very important for your professional life. You can pass Cisco 642-889 exam easily with RealExamDumps’s latest 642-889 exam questions. We at RealExamDumps provide you latest 642-889 exam questions that are going to be asked in the exam so if you prepare and practice the same 642-889 questions beforehand it would be easier for you to answer them in the real exam. When you will become 642-889 exam certified then you will exel in Describe the Internet routing hierarchy: Network Service Providers (NSP), Network Access Point (NAP), ISP Tiers (Tier 1, 2 and 3). All Cisco 642-889 exam questions prepared by the subject matter experts who are professional in their respective fields.

♥♥ 2018 NEW RECOMMEND 642-889 Exam Questions ♥♥

642-889 exam questions, 642-889 PDF dumps; 642-889 exam dumps:: https://www.dumpsschool.com/642-889-exam-dumps.html (76 Q&A) (New Questions Are 100% Available! Also Free Practice Test Software!)

Latest and Most Accurate Cisco 642-889 Dumps Exam Questions and Answers:

Question: 21

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

Question: 22

On Cisco IOS and IOS XE Layer 3 MPLS VPN implementations, when redistributing the customer RIP routes into MP-BGP, the RIP metric is copied into which BGP attribute?

A. local preference
B. weight
C. MED
D. extended community

Answer: C

Explanation:
https://supportforums.cisco.com/thread/191993
Use the red bgp metric transparent command to preserve the RIP metrics.
When RIP routes are redistributed into BGP, the route metric is stored in the BGP MED value. When BGP routes are redistributed into RIP, and the transparent keyword used, the MED value is copied back as the RIP metric. Without the transparent keyword, the metric value specified is applied to all the routes.

Question: 23

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_554713.html

Question: 24

What is the primary difference between 6PE and 6VPE?

A. 6VPE does not require an MPLS core.
B. 6VPE requires an IPv6-aware core.
C. 6VPE provides IPv6 VPN services.
D. 6VPE tunnels IPv6 packets inside IPv4 packets.

Answer: C

Explanation:
6PE is for transporting ipv6 natively and 6VPE is for ipv6 mpls vpns

Question: 25

Refer to the Cisco IOS XR router output exhibit,

which method is being used to transport IPv6 traffic over the service provider network?

A. 6PE
B. 6VPE
C. native IPv6
D. native IPv4
E. dual stack

Answer: B

Explanation:
NOT SURE THIS MATCHES ANSWER

Question: 26

Which flavor of MPLS Layer 3 VPN has MPLS enabled on PE-CE links?

A. basic
B. CSC
C. inter-AS
D. AToM
E. VPLS

Answer: B

New Updated 642-889 Exam Questions 642-889 PDF dumps 642-889 practice exam dumps: https://www.dumpsschool.com/642-889-exam-dumps.html

Facebook Comments