Which of the following statements are false? (Choose three.)

An ASBR-Summary-LSA describes the route to an ASBR and is flooded within an AS.

An ASE-LSA describes the route to an external AS and is flooded to an external AS.

The metric of a Type-1 external route is the AS external metric only.

An ASBR-Summary-LSA describes the route to an ASBR and is flooded within an AS.

An ASE-LSA describes the route to an external AS and is flooded to an external AS.

An AS-External-LSA does not belong to any specific area.

The metric of a Type-1 external route is the AS external metric only.

If a router receives two BGP routes (M and N) that contain the following attributes, Which route is the optimal route based on BGP route selection rules?

The optimal route is route M because its AS_Path is shorter than that of route N.

The optimal route is route N because its MED value is smaller than that of route M.

The optimal route is determined randomly.

Which methods can be used to import local routes to BGP? (Choose two.)

Run the summary automatic command.

Which statements about prerequisites to establishing a BGP peer relationship are true? (Choose two.)

BGP peers have been manually configured.

A TCP connection has been established between two neighboring routers.

BGP peers have been manually configured.

A TCP connection has been established between two neighboring routers.

BGP peers have exchanged routing information.

MD5 authentication has been configured on BGP peers.

How does a BGP router process the received route whose next hop is unreachable?

The BGP router accepts this route and adds it to the BGP routing table. This route, however, is neither preferred nor added to the IP routing table for packet forwarding.

The BGP router sends an error message to the router that has sent the Update message.

The BGP router accepts this route and adds it to the BGP routing table. This route, however, is neither preferred nor added to the IP routing table for packet forwarding.

The BGP router refuses this route.

The BGP router accepts this route and adds it to the BGP routing table. This route can participate in route selection and may be selected as the optimal route to be added to the IP routing table for packet forwarding.

Which statements about the process of establishing a BGP peer relationship are true? (Choose three.)

There may be two TCP connections during the establishment of the BGP peer relationship.

If two TCP connections are established between BGP peers, one TCP connection is torn down.

If there are "multiple" TCP connections between BGP peers, BGP keeps the TCP connection initiated by the peer with a greater BGP router ID.

There may be two TCP connections during the establishment of the BGP peer relationship.

If two TCP connections are established between BGP peers, one connection functions as the primary connection, and the other as the backup connection.

If two TCP connections are established between BGP peers, one TCP connection is torn down.

If there are "multiple" TCP connections between BGP peers, BGP keeps the TCP connection initiated by the peer with a greater BGP router ID.

Which statements about BGP route advertisement are true? (Choose two.)

By default, the routes learned from IBGP peers are not advertised to other IBGP peers.

Only the optimal routes are advertised to other BGP peers.

All BGP routes learned from BGP peers are advertised to other BGP peers.

Only the routes learned from an IGP are advertised to other BGP peers.

By default, the routes learned from IBGP peers are not advertised to other IBGP peers.

Only the optimal routes are advertised to other BGP peers.

Which statements about the AS number range are true? (Choose three.)

If 2-byte AS numbers are supported, a private AS number ranges from 64512 to 65535.

If 2-byte AS numbers are supported, an AS number ranges from 1 to 65535.

If 4-byte AS numbers are supported, a 4-byte AS number is in the x.y format. Here, "x" and "y" are integers ranging from 1 to 65535 and 0 to 65535 respectively.

If 2-byte AS numbers are supported, a private AS number ranges from 32768 to 65535.

If 2-byte AS numbers are supported, a private AS number ranges from 64512 to 65535.

If 2-byte AS numbers are supported, an AS number ranges from 1 to 65535.

If 4-byte AS numbers are supported, a 4-byte AS number is in the x.y format. Here, "x" and "y" are integers ranging from 1 to 65535 and 0 to 65535 respectively.

Which of the followings is used to avoid route loops in BGP?

Use AS_PATH attribute to record all ASs during a route passing from the local area to the destination in a certain order

Use ORIGIN attribute to record route origin

Use AS_PATH attribute to record all ASs during a route passing from the local area to the destination in a certain order

Use NEXT_HOP attribute to record next hop of the route

Use MED attribute to influence export selection of other AS

Which statements about BGP well-known mandatory attributes are true? (Choose three.)

Well-known mandatory attributes must be identified by all BGP routers.

Well-known mandatory attributes must be transmitted between BGP peers.

Well-known mandatory attributes must be carried in an Update packet.

Well-known mandatory attributes must be identified by all BGP routers.

Well-known mandatory attributes must be transmitted between BGP peers.

Well-known mandatory attributes are optional in an Update packet, and can be carried in an Update packet as needed.

Well-known mandatory attributes must be carried in an Update packet.

Which statements about BGP route selection rules are true? (Choose three.)

BGP first ignores routes with unreachable next hops.

A summarized route takes precedence over a non-summarized route.

If other conditions of routes are the same, the route with the shortest Cluster_List is preferred.

BGP first ignores routes with unreachable next hops.

A summarized route takes precedence over a non-summarized route.

IBGP routes take precedence over EBGP routes.

If other conditions of routes are the same, the route with the shortest Cluster_List is preferred.

Which of the following statements are correct regarding intra-area route calculation of OSPF? (Choose two.)

Every OSPF router only uses one Router LSA to describe local active link state for one area.

One Router LSA describes more than one link.

Every OSPF router only uses one Router LSA to describe local active link state for one area.

Every OSPF uses more than one Router LSA to describe local active link state for one area.

One Router LSA only describes one link.

One Router LSA describes more than one link.

Huawei H12-224 Practice Test 12 - Free Online Exam Questions 441-480

In the process of calculating SPF tree, the cost from a node to root node equals to metric listed in the Router LSA generated by the node.

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