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Vendor: Cisco
Certifications: CCNP Service Provider
Exam Name: Deploying Cisco Service Provider Network Routing (SPROUTE)
Exam Code: 642-883
Total Questions: 130 Q&As
642-883 dumps
Which two features are specific only to Tier 3 providers? (Choose two.)
A. interconnects with Tier Level 1 and Tier Level 2 ISPs in public peering points
B. only purchases transit from other networks to reach the Internet
C. purchases transit and pays settlements to other service providers
D. uses strict route filtering to allow only customer and local routes to be sent to upstream providers
E. receives a full Internet routing table via BGP from its upstream provider, which it can use for loadbalancing traffic
Correct Answer: BD

Which two statements about a transit AS are correct? (Choose two.)
A. A transit AS has eBGP connection(s) to only one external AS.
B. Routes between ASs are always exchanged via eBGP.
C. A transit AS uses an IGP like OSPF or ISIS to propagate the external networks within the transit AS.
D. Core routers within a transit AS normally use default routing to reach the external networks.
E. iBGP sessions can be established between non directly connected routers.
Correct Answer: BE

When configuring IPv4 and IPv6 IS-IS routing on Cisco IOS XR routers, which three statements are correct? (Choose three.)
A. By default, a single SPF is used for both IPv4 and IPv6, so the IPv4 and IPv6 topology should be the same.
B. By default, the IS-IS router type is Level 1 and Level 2.
C. All IS-IS routers within the same IS-IS area must be configured with the same IS-IS routing process instance ID.
D. By default, metric-style narrow is used.
E. By default, the IS-IS interface circuit type is Level 1 and Level 2.
F. The area IS-IS address-family configuration command is used to specify the IS-IS area address.
Correct Answer: BDE

When redistributing routes into OSPF, 642-883 dumps which kind of routes will be redistributed by default on Cisco IOS XR Software but will not be automatically redistributed by default on Cisco IOS Software and Cisco IOS XE Software?
A. Type 1 external routes
B. Type 2 external routes
C. subnetted routes
D. /32 host routes
E. tagged static routes
Correct Answer: C

Refer to the exhibit.
642-883 dumps
R1 and XR2 cannot establish OSPF adjacency. Which option is the root cause of this issue?
A. stub flag mismatch
B. mismatched passwords
C. process ID mismatch
D. mismatched authentication types
E. MTU mismatch
Correct Answer: D

What is the default OSPF seed metric and type?
A. 10 and E1
B. 10 and E2
C. 20 and E1
D. 20 and E2
E. 0 and E1
F. 0 and E2
Correct Answer: D

Which value must be configured when redistributing OSPFv2 into RIP?
A. metric
B. bandwidth
C. delay
E. reliability
Correct Answer: A

Refer to the exhibit.
642-883 dumps
XR1 must have XR4 as the primary exit point for only the first three subnets received from AS 100 and may not impact the rest of the subnets. Which configuration on XR1 is correct?
A. prefix-set PREFER le 32
route-policy LP
if destination in PREFER then set local-preference 200 endif
B. route-policy LP
if destination in ( le 32) then set local- preference 200 else pass endif
C. prefix-set PREFER le 32
route-policy LP
if destination in PREFER then set local-preference 200 else pass endif
D. route-policy LP
if destination in ( le 32) then set local preference 200 else set local-preference 100 endif
Correct Answer: B

642-883 dumps Which high-availability mechanism is a detection protocol that is enabled at the interface and at the routing protocol levels?
Correct Answer: D

Routes that are received from an IBGP peer will be propagated to which other routers by default?
A. to the EBGP peers only
B. to the IBGP peers only
C. to both EBGP and IBGP peers
D. to no other peers
Correct Answer: A

A service provider is running BGP with clients at the edge of the network. The service provider sees that routing updates from one site are being dropped when the other site receives them.
Which feature fixes this issue?
A. EBGP multihop
B. inter-AS peering
C. AS-override
D. allow-AS in
Correct Answer: C

What are two purposes of the BGP scan-time command? (Choose two.)
A. to tune the BGP process which walks the BGP table and confirms the reachability of next hops
B. to allow faster detection of downed BGP peers
C. to improve BGP convergence time
D. to tune the BGP update interval
E. to decrease the effects of unstable routes by increasing the route suppression time
Correct Answer: AC

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