Latest CCIE 350-001 New Question (46-50)

QUESTION 46
Which two options does Cisco PfR use to control the entrance link selection with inbound
optimization? (Choose two.)
A.    Prepend extra AS hops to the BGP prefix.
B.    Advertise more specific BGP prefixes (longer mask).
C.    Add (prepend) one or more communities to the prefix that is advertised by BGP.
D.    Have BGP dampen the prefix.
Answer: AC

QUESTION 47
Refer to the exhibit. What is the potential issue with this configuration?
A.    There is no potential issue; OSPF will work fine in any condition.
B.    Sub-optimal routing may occur since there is no area 1 adjacency between the ABRs.
C.    This is a wrong OSPF configuration because all routers must be in area 0 only.
D.    This is a wrong OSPF configuration because /30 requires 0.0.0.3 wild card.
Answer: B

QUESTION 48
Refer to the exhibit. What triggered the first SPF recalculation?
A.    changes in a router LSA, subnet LSA, and external LSA
B.    changes in a router LSA, summary network LSA, and external LSA
C.    changes in a router LSA, summary network LSA, and summary ASBR LSA
D.    changes in a router LSA, summary ASBR LSA, and external LSA
Answer: B

QUESTION 49
Which two orders in the BGP Best Path Selection process are correct? (Choose two.)
A.    Higher local preference, then lowest MED, then eBGP over iBGP paths
B.    Higher local preference, then highest weight, then lowest router ID
C.    Highest weight, then higher local preference, then shortest AS path
D.    Lowest origin type, then higher local preference, then lowest router ID
E.    Highest weight, then higher local preference, then highest MED
Answer: AC

QUESTION 50
What is the first thing that happens when IPv6 is enabled on an interface on a host?
A.    A router solicitation is sent on that interface.
B.    There is a duplicate address detection on the host interface.
C.    The link local address is assigned on the host interface.
D.    A neighbor redirect message is sent on the host interface.
Answer: B