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Question

Refer to the exhibit.
q60
A network operator must stop 10.33.33.33/32 from being redistributed into Level 1 router XR1. Which configuration meets this need?

A.	`#XR2 prefix-set NO_33 10.33.33.33/32 end-set ! route-policy ISIS_NO_33 if destination in NO_33 then drop else pass endif end-policy ! router isis 1 address-family ipv4 unicast propagate level 2 into level 1 route-policy ISIS_NO_33`
B.	`#XR3 prefix-set NO_33 10.33.33.33/32 end-set ! route-policy ISIS_NO_33 if destination in NO_33 then drop endif end-policy ! router isis 1 address-family ipv4 unicast propagate level 2 into level 1 route-policy ISIS_NO_33`
C.	`#XR3 prefix-set NO_33 10.33.33.33/32 end-set ! route-policy ISIS_NO_33 if destination in NO_33 then drop else pass endif end-policy ! router isis 1 address-family ipv4 unicast propagate level 2 into level 1 route-policy ISIS_NO_33`
D.	`#XR3 prefix-set NO_33 10.33.33.33/32 end-set ! route-policy ISIS_NO_33 if destination in NO_33 then drop else pass endif end-policy ! router isis 1 address-family ipv4 unicast propagate level 2 into level 1 route-policy ISIS_NO_33`

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Accepted Answer


#XR3
prefix-set NO_33
 10.33.33.33/32
end-set
!
route-policy ISIS_NO_33
 if destination in NO_33 then
  drop
 else
  pass
 endif
end-policy
!
router isis 1
 address-family ipv4 unicast
 propagate level 2 into level 1 route-policy ISIS_NO_33