Cisco Deploying Cisco Service Provider Network Routing (SPROUTE)

QUESTION NO: 1
DRAG DROP

Correct Answer:

Explanation: Weight
Local-Preference
As-Path
MED

QUESTION NO: 2
Referring to the partial Cisco IOS-XR BGP configuration exhibit, when trying to commit this configuration, the following error is displayed:
% Failed to commit one or more configuration items during a pseudo-atomic operation. All changes made have been reverted. Please issue 'show configuration failed' from this session to view the errors.

What is wrong with the configuration?

A. The update-source loopback 0 commands must be configured under the respective neighbor address-family B. IPv6 unicast routing has not been enabled globally using the ipv6 unicast-routing command C. The configuration is missing the required network command D. The configuration is missing the address-family ipv4 unicast and address-family ipv6 unicast commands under router bgp 65111

Correct Answer: D

QUESTION NO: 3
A service provider has set up new eBGP sessions for new customers who require Internet connectivity for their own public AS sessions. To connect, these sessions require MD5 authentication and no cluster ID configured. The NOC notified that one of these eBGP neighbors does not establish any session with the CE BGP speaker. Which option is a potential cause if the BGP configuration is correct?

A. The customer BGP speaker is receiving too many prefixes at once and no connection can be established without a maximum -prefix value configured. B. The BGPMD5 password has been typed incorrectly producing a failure in the authentication process. C. No cluster ID is configured, so the BGP process does not find a way to identifythe service provider BGP speaker in the customer BGP route reflectors cluster-list. The session is not established to keep the customer iBGP core network loop-free. D. A public AS does not require another service provider to connect to the Internet. The
BGP configuration automatically blocks this type of design due to loop-avoidance built-in mechanisms.

Correct Answer: B

QUESTION NO: 4
When configuring Cisco IOS route maps, which command allows the route map processing to jump to another statement instead of exiting?

A. continue B. goto C. jump D. set E. next

Correct Answer: A

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QUESTION NO: 5
Which three potential issues can cause an OSPF adjacency to not come up? (Choose three.)

A. wrong area configured on OSPF peers B. Layer 2 connectivity problems on the shared medium of the participating OSPF-enabled routers C. different OSPF instance numbers configured on OSPF peers D. wrong authentication key configured on OSPF peers E. having the no passive-interface statement configured for the interfaces on which OSPF adjacencies are expected to form F. different OSPF instances and VRFs configured with the command: router ospf <number1> vrf <number2>

Correct Answer: A,B,D

QUESTION NO: 6
Which RPLs can be used to conditionally advertise a default route based on the prefix
1 .1.1.1 being in the routing table?

A. route-policy RPL_Default_Originate
if not rib-has-route in (1.1.1.1/32)
pass
else
drop
endif
end-policy B. route-policy RPL_Default_Originate
if rib-has-route in (1.1.1.1/32)
pass
else
drop
endif
end-policy C. route-policy RPL_Default_Originate
if rib-has-route in (1.1.1.1/32)
drop
else
pass
endif
end-policy D. route-policy RPL_Default_Originate
if route in (1.1.1.1/32)
pass
else
drop
endif
end-policy

Correct Answer: B

QUESTION NO: 7
How can you prevent multihomed customers with connections to two service providers from acting as a transit AS?

A. Use conditional advertisements when sending BGP updates to the ISPs B. Use MED to influence the inbound traffic from the ISPs C. Use an AS-path access-list to filter the BGP updates to the ISPs D. Use static routing to the ISPs E. Enable BGP synchronization on all the customer routers

Correct Answer: C

QUESTION NO: 8
An engineer wants to define a route policy that sets MED to a given value in case the extended community attributes of a network prefix match at least one of the values:
65000:10, 65000:20, or 65000:30. Which configuration accomplishes this task?

A. extcommunity-set rt my-list
65000:10
65000:20
65000:30
end-set
route-policy my-list ($med)
if extcommunity rt matches-within my-list or med is $med is then
set met $med B. extcommunity-set rt my-list
65000:10
65000:20
65000:30
end-set
route-policy my-list ($med)
if extcommunity rt matches-within my-list then
set met $med C. extcommunity-set rt my-list
65000:10
65000:20
65000:30
end-set
route-policy my-list ($med)
if extcommunity rt matches-any my-list then
set met $med D. extcommunity-set rt my-list
65000:10
65000:20
65000:30
end-set
route-policy my-list ($med)
if extcommunity rt matches-any my-list or med is $med then
pass

Correct Answer: C

QUESTION NO: 9

Which three statements are correct regarding the OSPF operations? line (Choose three.)

A. PE5 OSPFv2 and OSPFv3 router id is 10.5.1.1 B. Area 4 is using MD5 authentication C. Area 1 IPv4 and IPv6 networks are not reachable from PE6 D. The OSPF virtual-link cost is 1 E. Area 3 is a transit area

Correct Answer: B,C,E

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QUESTION NO: 10
Which OSPF feature allows a router with redundant route processors to maintain its OSPF state and adjacencies across planned and unplanned RP switchovers and does this by checkpointing state information from OSPF on the active RP to the standby RP? This feature does not require the OSPF neighbor to support graceful restart.

A. SDR B. NSR C. MTR D. NSF E. BFD

Correct Answer: B

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Cisco Deploying Cisco Service Provider Network Routing (SPROUTE) - 642-883 Exam Questions