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Understanding functional and technical aspects of Ethernet Technology

The following will be asked from you in the Huawei H12 222 exam dumps:

• STP principles and configuration
• DHCP principles and extended switch feature, DHCP snooping MPLS VPN
• MPLS principles and implementation: MPLS frame format and encapsulation, MPLS data forwarding process, LDP neighbor discovery and session establishment, LDP label management, and MPLS loop avoidance
• QinQ principles, configuration, and implementation
• GVRP principles, configuration, and implementation
• Basic principles and implementation of MPLS VPN: single-domain MPLS VPN principles; implementation and application of OSPF in MPLS VPN
• VRP software features of Huawei switches
• Ethernet evolution process, port auto-negotiation technology, port trunking, port mirroring, working principles of a Layer 2 switch, and working principles of a Layer 3 switch VLAN
• Network Access Technology
• STP/RSTP/MSTP
• Inter-VLAN routing, Super VLAN, MUX VLAN, ARP proxy, and VLAN mapping
• RSTP principles and configuration
• Hardware structure and working principles of Huawei switches
• 802.1Q encapsulation and implementation of VLAN in Huawei products
• 802.1X access authentication techniques and principles
• MPLS VPN fault diagnosis: troubleshooting roadmap and debugging methods of control plane faults; troubleshooting roadmap and debugging methods of data plane faults Huawei Ethernet Switches
• MSTP principles and configuration

Reference: https://support.huawei.com/learning/Certificate!toExamOutlineDetail?lang=en&nodeId=Node1000003919

Sample Questions

Agile Controller, as a network resource automation control system, can provide unified policy engine and implement unified access strategy in the whole organization. It can realize based on user identity, access time, access location, terminal type, terminal source and access mode (For shot: 5W1H) certification and authorization.

• False
• True

Adopting QoS in the network, while improving the service quality of certain kinds of business, it will certainly damage the service quality of other business.

• False
• True

What is the configuration command that associates VRRP with BFD?

• track vrrp vrid 1 bfd-session session-name 1 reduced 100
• bfd-session vrrp vrid 1 track session-name 1 reduced 100
• vrrp vrid 1 track bfd-session-name 1 reduced 100
• vrrp vrid 1 track bfd-session session-name 1 reduced 100

When configuring a RADIUS server template on Huawei switches, which of the following options are optional configuration parameters?

• Authentication server address and port
• shared-key
• Accounting server address and port
• RADIUS automatically detects users

In MPLS, it has different ways for label distribution when using LDP, the following descriptions about LDP lable distribution way, which are wrong? (Multiple Choice)

• LDP label control can not use the independent way to mark.
• Using an ordered manner, when an LSR is the originating node of a route, the LSR does not need to wait for the next-hop tag mapping to send the mapping to the upstream.
• The LDP label control can mark by Odered manner
• Using a standalone mode, the LSR can send a label mapping to the upstream LSR and must wait for a label mapping message from the next hop of the LSR.

There is a difference between RSTP protocol and STP protocol, in RSTP protocol when defining port status, which port states are defined?

• Forwarding state
• Learning state
• Discarding state
• All of the above

When configuring and achieving STP protocol, each running STP agreement's switch in the network all have a unique ID, what is the ID?

• six bytes length's switch priority and the six-byte length's MAC address
• two bytes length's switch priority and the six-byte length's MAC address
• six bytes length's MAC address
• two bytes length's switch priority

When running the STP agreement on the switch, the switch just being started is in the initialization stage and thought itself is the root switch, which of this time's BPDU parameter settings is correct? (Please select 3 answers)

• Designated Port is 0
• Designated Root is the switch itself
• Designated Bridge is the switch itself
• Designated Cost is 0

The following is a switch configuration command,

(SWB) STP enable (SWB) STP mode STP (SWB) the STP priority 8192

Which description is correct? (please select 3 answers)

• the priority of the switches, the range is 0 - 61440, the step length is 4096, namely the switch can set 16 priority values, such as 0, 4096, 8192.
• stp enable is used to start switch's STP function, by default, the switch's STP function is in the enabled function.
• stp priority commands is used to configure the switch priority, by default, the switch priority value is 32768.
• By default, Huawei switches operating mode is the traditional STP mode.

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