Which of following may be the reasons that cause Frame Relay PVC to work abnormally? (Choose three)
A. Same DLCI number is configured on the same routerIn the STP protocol, assume that all switches have the same priority, and the MAC address of switch 1 is 00-e0-fc-00-00-40, switch 2 The MAC address of the switch is 00-e0-fc-00-00-10, the MAC address of switch 3 is 00-e0-fc-00-00- 20, and the MAC address of switch 4 is 00-e0-fc00-00-80, then the root switch should be ().
A. Switch 1An authenticator router has been configured with two domains named "Area1" and "Area2",
following which a user is created with the username "huawei" and the password "hello" for authentication.
Which domain does this user belongs to?
Layer 2 switches are data link layer devices that identify MAC addresses of Layer 2 data frames and forward Layer 2 data frames based on MAC addresses. In addition, they record mappings between MAC addresses and interfaces in the MAC address table.
A. TrueAs shown in the figure, the ports connected to the host by SWA and SWB are both Access ports and the PVID is 2. G0/0/1 of SWA is a Hybrid port. The PVID is 1, and the port hybird tagged vlan 2 command is configured. G0/0/1 of the SWB is a trunk port, the PVID is 1, and VLAN 2 is allowed. Passed. The correct one in the following description is ().
A. Host A can send a data frame to Host B but cannot receive a reply from Host B.Which command can be used to display the mapping between network address and DLCI on the router?
A. display fr interfaceWhich of the following statements about the information contained in a Database Description packet are true? (Choose three)
A. A Database Description packet contains all information about each LSA.As shown in the figure, the H frame contains an IP packet sent from Host A to Host B, and the destination MAC address of the H frame is ().

The network structure and OSPF partition are shown in the figure. In addition to R1, routers R2, R3 and R4 are OSPF ABR routers.

Which of the following statements are correct about NAT? (Choose three)
A. NAT is the abbreviation for "Network Address Translation"Nowadays, the certification exams become more and more important and required by more and more enterprises when applying for a job. But how to prepare for the exam effectively? How to prepare for the exam in a short time with less efforts? How to get a ideal result and how to find the most reliable resources? Here on Vcedump.com, you will find all the answers. Vcedump.com provide not only Huawei exam questions, answers and explanations but also complete assistance on your exam preparation and certification application. If you are confused on your H12-211 exam preparations and Huawei certification application, do not hesitate to visit our Vcedump.com to find your solutions here.