The switch SWA and SWB are connected together by 2 Ethernet links, where the switch SWA has the following interface configuration:

• A.Only if the configuration of GigabitEthernet 1/0/2 is changed to match GigabitEthernet 1/0/1 can the two join the same aggregation group
• B.Because of the different VLANs allowed, GigabitEthernet1/0/1 and GigabitEthernet1/0/2 cannot join the same aggregation group
• C.Without changing the current configuration, GigabitEthernet1/0/1 and GigabitEthernet1/0/2 can join the same aggregation group
• D.After link clustering is configured on both SWA and SWB, if MSTP is enabled on the switches SWA and SWB Both GigabitEthernetl1/0/1 and GigabitEthernetl/O/2 are the forwarding status of MSTP

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An engineer used 2 routers to test IPv6 services and simulated the interconnection between headquarters and branches by running BGP4+. The network logic topology is shown in the figure, regarding the delivery of IPv6 routes between two devices, which of the following statements is wrong?

• A.BGP4+ passes routing information between peers via Update packet
• B.When a route is passed, it carries a recognized mandatory attribute such as AS_Path
• C.When routing is passed, the Next_Hop attribute must be an IPv6 global unicast address
• D.If the Update message carries the MP_REACH_NLRI attribute, it means that the advertisement is reachable route

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All interfaces of the router have OSPF enabled, the Cost value of the link is identified in the figure, and the Loopback0 socket for R2 is advertised in area 1, then Rl reaches 10022/32 with a Cost value of?

• A.50
• B.200
• C.100
• D.150

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There can be multiple nodes under a route -policy, different node numbers are identified by nodes, and each node can have multiple if-match and apply clauses, which of the following descriptions are wrong?

• A.There is an "or" relationship between different nodes
• B.The relationship between the if-match clauses under each node is "and"
• C.The relationship between different nodes is an "and" relationship
• D.The relationship between the if-match clauses under each node is "or"

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Regarding the Stub region and the Totally Stub region of the OSPF protocol, the following statement is correct (multiple choice)

• A.After modifying the original Stub area to a Totally Stub area, the number of LSAs in the LSDB of each router in the region will definitely be reduced
• B.ASBR cannot be present in either the Stub zone or the Totally Stub zone
• C.When you modify the original Stub area to a Totally Stub region, the number of LSAs propagating within the region will definitely decrease
• D.If there are two ABR in the Totally Stub zone, each ABR sends an LS ID of 0000 to the router in the zone LSA

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