[Free] Download New Updated (December) Cisco 642-889 Exam Questions 1-10

Ensurepass

QUESTION 1

When implementing EoMPLS PWs, which configuration is optional?

 

A.

matching PW ID on both ends

B.

Xconnect

C.

Cisco Express Forwarding

D.

control word

 

Correct Answer: D

 

 

QUESTION 2

Which service can be used to extend the same broadcast domain across the WAN to multiple customers?

 

A.

EVP-TREE

B.

E-LINE

C.

EPL

D.

EVPL

 

Correct Answer: A

 

 

QUESTION 3

When implementing a Layer 2 transport subinterface on a Cisco IOS XR router, which encapsulation option is used to match any packets that are not matched by any other service instances?

 

A.

default

B.

untagged

C.

any

D.

tag

 

Correct Answer: A

 

 

QUESTION 4

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

 

Correct Answer: AB

 

 

 

 

 

 

 

QUESTION 5

Refer to the exhibit. Which two descriptions outline the traffic flow among the three sites? (Choose two.)

 

clip_image002

 

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.

 

Correct Answer: AE

 

 

QUESTION 6

Which statement regarding the Cisco IOS BGP configuration exhibit is correct?

 

clip_image004

 

A.

None of the routers will receive IPv4 BGP routes.

B.

Only the 172.16.2.1 and 172.16.3.1 neighbors will receive both VPNv4 routes and IPv4 BGP routes.

C.

Only the 172.16.3.1 neighbor will receive both VPNv4 routes and IPv4 BGP routes.

D.

All three neighbors (172.16.1.1, 172.16.2.1, and 172.16.3.1) will receive both VPNv4 routes and IPv4 BGP routes.

E.

All three neighbors (172.16.1.1, 172.16.2.1, and 172.16.3.1) will receive IPv4 BGP routes.

 

Correct Answer: C

 

 

QUESTION 7

Refer to the Cisco IOS XR router output exhibit, which method is being used to transport IPv6 traffic over the service provider network?

 

clip_image006

 

A.

6PE

B.

6VPE

C.

native IPv6

D.

native IPv4

E.

dual stack

 

Correct Answer: B

Explanation:

clip_image008

 

 

QUESTION 8

A customer requests Internet through its MPLS provider. Which Internet design model guarantees maximum security and easier provisioning?

 

A.

Internet access through global routing

B.

Internet access through route leaking

C.

Internet access through a separate VPN service

D.

Internet access through multisite

 

Correct Answer: C

 

 

QUESTION 9

A customer wants two separated sites to be connected via a pseudo-wire. Which solution provides the simplest implementation?

 

A.

AToM

B.

Layer 3 VPN

C.

VPLS

D.

GETVPN

 

Correct Answer: A

 

 

QUESTION 10

Based on the Cisco IOS XR VRF configuration exhibit. Which two data flows between the MPLS VPNs will be allowed? (Choose two.)

 

clip_image010

 

A.

The CustomerA central site can communicate with the CustomerB central site.

B.

The CustomerA central site can communicate with all CustomerA sites.

C.

The CustomerA central site can communicate with all CustomerB sites.

D.

The CustomerA sites can communicate with all CustomerB sites.

 

Correct Answer: AB

 

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