IPsecuses anasymmetric encryption algorithmto encrypt thesymmetric algorithm key, which it uses to encrypt
/decrypt data, ensuring security and performance.

• A.TRUE
• B.FALSE

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Which of the following commands are mandatory for configuring an OSPF-based SR-MPLS TE tunnel? (Select All that Apply)

• A.Configure the LSR ID for routers.
• B.Enable segment routing in the OSPF process view.
• C.Enable the opaque capability of OSPF.
• D.Enable MPLS TE in the OSPF process view.

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In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following statements about symmetric IRB forwarding are correct?

• A.Both the ingress VTEP and egress VTEP forward packets based on the Layer 3 forwarding table.
• B.The ingress VTEP forwards packets based only on the Layer 2 forwarding table.
• C.The egress VTEP forwards packets based only on the Layer 2 forwarding table.
• D.When VTEPs forward inter-subnet user communication packets, the VNI carried in the VXLAN header is the L3VNI.

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What can be determined from the following figure?
<R1> display ipv6 routing-table protocol isis
Public Routing Table : ISIS
Summary Count: 6
ISIS Routing Table's Status : < Active >
Summary Count: 6
Destination : 3000:FDEA::4
NextHop : FE80::2E0:FCFF:FE98:2577
Cost : 20
Interface : GigabitEthernet0/0/1
PrefixLength : 128
Preference : 15
Protocol : ISIS-L2
Flags : D

• A.R1 has six IS-IS IPv6 routes.
• B.R1 does not have IS-IS IPv6 routes.
• C.IS-IS IPv6 must have been enabled on GigabitEthernet0/0/1 of R1.
• D.R1 is not a Level-1 device.

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The OSPF3 protocol is a separately developed protocol that differs somewhat from OSPF2 in that OSPFv3 is link-based rather than network segmented, and the following statement is incorrect?(). Single choice questions).

• A.The routing information obtained by the OSPFv3 router from the neighbor uses the neighbor's Link-Local address as the next hop in the forwarded packet
• B.All OSPFv3 interfaces use the Link-Local address as the destination address of the message
• C.For two OSPF routers connected to the link, you can establish a neighbor relationship even if you do not configure a unicast IPv6 address
• D.Two OSPF routers connected to the link can establish a neighbor relationship even if their IPv6 address prefixes are different

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