Which of the following statements regarding BGP attributes is true?

• A.A route can have only one value for the Community attribute.
• B.When advertising a route learned from an EBGP peer to an IBGP peer, the BGP speaker does not change the Next_Hop attribute of the route.
• C.The Local_Pref attribute is exchanged only between EBGP peers and is not advertised other ASs.
• D.The number of the neighboring AS is displayed to the right of the AS_path list of a BGP routing entry.

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A (*,G) multicast entry is associated with which multicast type of feature within the HW IP multicast network?
(Multiple Choice)

• A.Source tree
• B.PIM bidirectional
• C.Dense Mode
• D.Dense Tree
• E.Sparse Mode
• F.Shared tree

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Router A has an IP route with the destination network segment of 10.0.0.1/32 and outbound interface of GigabitEthernet0/0/1. The following configuration is added:

Assume that router A receives a data packet with the destination IP address of 10.0.0.1.
Which of the following statements are true?

• A.If the source IP address of the data packet is 10.0.1.2, the data packet can be forwarded and the DSCP value remains unchanged.
• B.If the source IP address of the data packet is 10.0.1.1, the data packet can be forwarded and the DSCP value is set to CS3
• C.If the source IP address of the data packet is 10.0.1.2, the data packet cannot be forwarded.
• D.If the source IP address of the data packet is 10.0.1.2, the data packet can be forwarded and the DSCP value is set to CS3.

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The following is true, is the OSPFv3 Link-LSA correct?

• A.Contains both the local address chain of this interface and all the pre-IPv6 suffixes of this interface.
• B.Option LSA Link-lsa field exists in the header, not the data area
• C.If a previous Link-LSA Prefix Option 0x00 Prefix IPv6 suffix field is , then it will not be admitted to the single calculation.
• D.Contains both the local address chain of this interface and all the previous Ipv6 suffixes in the same area on the router.

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Assuming three routers (A, B, and C) uses BGP as the routing protocol. A sends Update packets to B and B sends the Update packets to C.
Which of the following attributes meet the following two conditions?
(1) A can select whether to carry this attribute in Update packets.
(2) If B receives an Update packet carrying this attribute, B still advertises the Update packet to C although B cannot identify this attribute. Then, Router C may identify and use this attribute.

• A.Multi_Exit_Disc
• B.Local_Pref
• C.Aggregator
• D.Community

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