H12-831_V1.0-ENU 무료 덤프문제 온라인 액세스

On the network shown in the figure, a network engineer finds that the path between PC1 and PC2 is not the optimal path , and all links along the path have the same cost .
Given this, which of the following routers may be the root bridges of the Layer 2 network?

Options:

• A.SW1
• B.SW2
• C.SW3
• D.SW4

On the OSPFv3 network shown in the figure, the IPv6 address of Loopback0 on R3 is 2000-3/128, and OSPFv3 is enabled. Which of the following statements are true?

• A.The Link-LSA generated by R2 does not exist in the LSDB of Rl.
• B.Rl definitely generates a Network-LSA.
• C.R2 definitely generates a Link-LSA.
• D.R3 definitely generates an Intra-Area-Prefix-LSA.

On the OSPFv3 network shown in the figure, area 1 is an NSSA. R1 imports the external route 2000::1/128 to OSPFv3. Which of the following LSAs does not exist in area 1?

• A.Intra-Area-Prefix-LSA
• B.Inter-Area-Prefix-LSA
• C.NSSA LSA
• D.AS-External-LSA

VLAN aggregation uses multiple sub-VLANs to isolate broadcast domains on a physical network and aggregates these sub-VLANs into a logical super-VLAN. Which of the following statements is true about VLAN aggregation?

• A.When configuring VLAN aggregation, you can configure VLAN 1 as a super-VLAN.
• B.If proxy ARP is enabled on the VLANIF interface corresponding to a super-VLAN, ARP entries can be generated to allow all sub-VLANs to communicate.
• C.If different sub-VLANs belong to the same super-VLAN, hosts in these sub-VLANs can directly communicate at Layer 2.
• D.If a super-VLAN and the corresponding VLANIF interface are created on a core switch, the VLANIF interface goes Up as long as there is a physical interface in Up state on the core switch.

On the OSPF network shown in the figure, the cost values of links are marked. OSPF IP FRR is enabled on R1. The primary path from R1 to 10.0.3.3/32 is R1 - > R2 - > R3, and the backup path is R1 - > R4 - > R2 - > R3.

• A.FALSE
• B.TRUE