If you want to check the files under Flash, which command should you use?

• A.dir sd0
• B.dir flash
• C.display patch-information
• D.dir sdl

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As shown in the figure, on the R1 router, network administrator A can control the path of the traffic leaving AS100 after modifying the Local Preference value of the routing entry sent to R2 through the routing policy.

• A.FALSE
• B.TRUE

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Which description is correct about the DHCP address pool? (Multiple choice)

• A.Configure the address allocation method based on the global address pool, which can respond to DHCP requests received by all ports
• B.Configure interface-based address allocation, which can respond to all ports receiving DHCP requests
• C.Only when the address allocation method based on the global address pool is configured, can you set the P address range that does not participate in automatic allocation
• D.Configuring the interface-based address assignment method will only respond to the DHCP request of the interface

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Traditional BGP-4 can only manage IPv4 unicast routing information. MP-BGP extends BGP-4 in order to provide support for various network layer protocols. MP-BGP uses address family to distinguish different network layer protocols. Which of the following address families are currently supported? (Multiple choice)

• A.BGP-IPv6 Unicast Address Family
• B.BGP-IPv4 broadcast address family
• C.BGP-MP instance IPv6 address family
• D.BGP-VPNv4 address family

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An engineer uses two routers to test IPv6. He wants to realize the interconnection of IPv6 networks by running OSPFv3. About the OSPFv3 related configuration that needs to be done on R1
, which are correct? (Multiple choice)

• A.[R1-GigabitE thernet0\/0\/1] ospfv3 1 area 0
• B.[R1] router id 10.1.1.1
• C.[R1-ospfv3-1-area-0.0.0.0] network 2001
• D.[R1-ospfv3-1] router-id 10.1.1.1

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