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Exam : Huawei GB0-280
Title : Huawei(r) Constructing Enterprise-level Routing Networks


1. Which of the following is the way to avoid loop in the BGP protocol? ( )
A.Record the source of the route in the attribute: origin
B.Record the AS route in the attribute: AS-Path
C.Record the next hop in the Next-Hop attribute
D.Affect the choice of egress for another AS in the MED attribute
Answer: B

2. BGP community is a group of destinations with public attributes. For a network or an AS there can be only one community. ( )
T.True
F.False
Answer: F

3. Which of the following are the right description to the adjacency between routers in the OSPF protocol? ( )
A.Two routers, if they are in bidirectional adjacency, that is, they receive the Hello message from each other, they automatically become adjacent.
B.If two routers are adjacent, the underlying network between them is probably Point-to-Point.
C.If two routers are adjacent, the underlying network between them is probably Point-to-MultiPoint.
D.If two routers are adjacent, the underlying network between them is probably Broadcast. One of them must be a DR or BDR.
E.Only when the two routers are adjacent will they exchange the LSA message.
Answer: BCDE

4. Which is wrong about the BGP protocol? ( )
A.BGP is a robust routing protocol.
B.BGP is to check the route loop.
C.BGP can not summary routes of the same type.
D.BGP inherits from EGP
Answer: C

5. Two routers running the OSPF protocol are synchronizing the Link State Database. When you check the peer state machine on one of them, it indicates it has reached the FULL state. Therefore, such a conclusion can be drawn that if you check the peer state machine from the other router, it should also indicate that it has reached the FULL state. ( )
T.True
F.False
Answer: F

6. To view the information of the DR and BDR in the OSPF area, you can use ( )
A.Display ospf
B.Display ospf error
C.Display ospf interface
D.Display ospf peer
Answer: A

7. In the BGP protocol, the function of the community attribute NO-EXPORT is to ( )
A.Indicate that the route with this attribute should not be notified to any peer out of the alliance
B.Indicate that the route with this attribute, once received, should not be notified to any BGP peer.
C.Indicate that the route with this attribute, once received, should not be notified to any EBGP peer.
D.None of the above
Answer: A

8. which of the following are the right description to the backbone area? ( )
A.The backbone area ID is 0.0.0.0.
B.All other areas must connect to the backbone area.
C.Between the backbone areas it can be disconnected.
D.Each ABR (Area Border Router) should be connected to at least one backbone area.
Answer: ABD