how many questions of 642-883 practice test?

Q1. 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 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-any 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-within my-list.or med is $med is 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 

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Q2. Refer to the Cisco IOS XR route policy exhibit. 

Which two statements are correct? (Choose two.) 

A. "test" and "foo" are references to the community sets. 

B. The "match-any" option indicates matching either the standard community or extended community. 

C. Routes that match both the "test" and "foo" conditions will have their local preference set to 20. 

D. All non-matching routes will be permitted. 

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Q3. In an AS with 10 routers running IBGP, how many IBGP sessions will be required to establish fully meshed IBGP peerings? 

A. 10 

B. 20 

C. 45 

D. 50 

E. 99 

F. 100 

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Q4. A Cisco IOS XR router must be configured with BFD for OSPF. Which configuration is correct? 

A. interface GigabitEthernet0/0/0/0 ip ospf bfd 

B. router ospf 1 area 0 interface GigabitEthernet0/0/0/0 bfd fast-detect 

C. router ospf 1 area 0 interface GigabitEthernet0/0/0/0 bfd fast-detect ipv4 

D. router ospf 1 bfd all-interfaces 

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Q5. For a Cisco IOS XR router, under which BGP configuration group can default-originate be added? 

A. session-group 

B. af-group 

C. neighbor-group 

D. peer-session template 

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Q6. An engineer is working on routers within AS 100. Which regular expression can be used in an AS path access list to match locally originated routes from AS 100? 

A. ^100$ 

B. ^$ 

C. _100$ 

D. ^[0-9]*$ 

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Q7. When using the Cisco IOS-XR show bgp command to examine the BGP table, the Metric value being displayed is used to represent which BGP attribute? 

A. Weight 

B. Local Preference 

C. MED 

D. Cost Community 

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Q8. RAG DROP 

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Q9. Refer to the Cisco IOS XR route policy exhibit. 

If the original incoming routing update has an MED of 10 and a local preference of 100, how will the routing update be modified? 

A. The local preference will be set to 100, the MED will be set to 10, and the weight will be set to 100. 

B. The local preference will be set to 100, the MED will be set to 10, and the weight will be set to 200. 

C. The local preference will be set to 200, the MED will be set to 10, and the weight will be set to 100. 

D. The local preference will be set to 200, the MED will be set to 10, and the weight will be set to 200. 

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Q10. Which of the following is a characteristic of dual-multihomed connectivity between an enterprise network and the service provider network or networks? 

A. An enterprise network that is connected to two or more different service providers with two or more links per service provider and using BGP to exchange routing updates with the service providers. 

B. Each service provider announces a default route on each of the links that connect to the customer with a different metric. 

C. An enterprise network announces a default route to each service provider. 

D. Load balancing can be achieved using the maximum-paths command. 

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