Download New Updated (June) Cisco 640-878 Practice Test 51-60

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QUESTION 51

When is a route-policy configuration needed on a Cisco IOS XR router using RPL?

 

A.

when enabling an IGP routing protocol configuration

B.

when enabling an EBGP peering configuration

C.

when enabling an IBGP peering configuration

D.

when enabling route redistribution

E.

when enabling an LDP peering configuration

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Correct Answer: B

Explanation:

http://www.cisco.com/en/US/docs/ios_xr_sw/iosxr_r3.7/routing/configuration/guide/rc37rpl.pdf

 

 

QUESTION 52

Refer to the partial Cisco IOS router configuration exhibit. Which type of tunnel configuration is shown?

 

clip_image002

 

A.

GRE tunnel

B.

manual 6in4 tunnel

C.

6to4 automatic tunnel

D.

6RD

E.

IPv4-in-IPv6 tunnel

 

Correct Answer: B

Explanation:

http://www.networking-forum.com/blog/?p=24

 

 

 

 

 

QUESTION 53

Which two protocols are most often deployed in Cisco IP NGN multiservices core networks to support services like VPNs? (Choose two.)

 

A.

MPLS

B.

GRE

C.

mGRE

D.

SSL

E.

VTI

F.

multiprotocol BGP

 

Correct Answer: AF

 

 

QUESTION 54

Which segment protocol provides fast and predictable convergence (typically within 50 ms) in Layer 2 Ethernet ring topologies?

 

A.

Spanning Tree Protocol

B.

Flex Links

C.

Resilient Ethernet Protocol

D.

Spatial Reuse Protocol

E.

Resilient Packet Ring

 

Correct Answer: C

Explanation:

http://www.cisco.com/en/US/docs/switches/metro/me3400/software/release/12.2_40_se/configurat ion/guide/swrep.html

 

Resilient Ethernet Protocol (REP) on the Cisco ME 3400E Ethernet Access switch. REP is a Cisco proprietary protocol that provides an alternative to Spanning Tree Protocol (STP) to control network loops, handle link failures, and improve convergence time. REP controls a group of ports connected in a segment, ensures that the segment does not create any bridging loops, and responds to link failures within the segment. REP provides a basis for constructing more complex networks
and supports VLAN load balancing.

 

 

QUESTION 55

Within an MPLS domain, which table is used by the ingress edge LSR to make forwarding decisions when an unlabeled IP packet is received?

 

A.

FIB

B.

LFIB

C.

LIB

D.

MP-BGP

E.

VRF

 

Correct Answer: A

Explanation:

clip_image004

clip_image006

 

 

 

 

 

 

 

QUESTION 56

Which three statements about access control lists on a Cisco IOS router are true? (Choose three)

 

A.

The more specific ACL entries should be placed at the top of the ACL.

B.

The generic ACL entries should be placed at the top of the ACL, to filter general traffic and reduce noise on the network.

C.

ACLs always search for the most specific entry before taking any filtering action.

D.

Router-generated packets cannot be filtered by the interface ACLs on the router.

E.

Extended ACLs should be placed as close to the destination as possible.

F.

There must be at least one permit statement in an ACL, or all traffic is denied.

 

Correct Answer: ADF

 

 

QUESTION 57

Which Cisco IOS access list permits HTTP traffic that is sourced from host 10.1.129.100 port 3030 and that is destined to host 192.168.1.10?

 

A.

access-list 101 permit tcp any eq 3030

B.

access-list 101 permit tcp 10.1.128.0 0.0.1.255 eq 3030 192.168.1.0 0.0.0.15 eq www

C.

access-list 101 permit tcp 10.1.129.0 0.0.0.255 eq www 192.168.1.10 0.0.0.0 eq www

D.

access-list 101 permit tcp host 192.168.1.10 eq 80 10.1.0.0 0.0.255.255 eq 3030

E.

access-list 101 permit tcp 192.168.1.10 0.0.0.0 eq 80 10.1.0.0 0.0.255.255

F.

access-list 101 permit ip host 10.1.129.100 eq 3030 host 192.168.1.100 eq 80

 

Correct Answer: B

 

 

QUESTION 58

What is dual IOS mode on the Cisco ASR 1001 Router?

 

A.

redundant IOS processes that are running on the active RP and standby RP

B.

active and standby IOS processes that are running on a single RP

C.

separate Cisco IOS XE and IOS XR processes that are running on a single RP

D.

separate Cisco IOS XE and IOS XR processes that are running on two different RPs

E.

checkpointed redundant IOS processes that are running on two different RPs in active/active mode

 

Correct Answer: B< /span>

Explanation:

clip_image008

 

 

QUESTION 59

Which Cisco platform runs the Cisco IOS XE operating system?

 

A.

Cisco ASR9K

B.

Cisco CRS

C.

Cisco 12000 GSR

D.

Cisco ASR1K

E.

Cisco ME 3400

F.

Cisco ISR-G2

 

Correct Answer: D

Explanation:

http://www.cisco.com/en/US/prod/collateral/routers/ps9343/product_bulletin_c25-448387.html

 

 

QUESTION 60

A service provider needs to implement a managed CE device that supports Cisco IOS ISSU, and the current CE support staff is highly trained in Cisco IOS only. Which Cisco router platform should the service provider implement as the managed CE device?

 

A.

Cisco ASR1K

B.

Cisco ISR-G2

C.

Cisco ASR9K

D.

Cisco 12000 GSR

E.

Cisco 7200

F.

Cisco 7600

 

Correct Answer: A

Explanation:

clip_image010

 

 

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