Update Huawei H12-223-ENU pdf questions and answers

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Share some HCNP-R&S H12-223-ENU exam questions and answers below.
Ethernet is a network supporting broadcast, this simple broadcast mechanism will lead to disastrous consequences once there is a loop in the network. 
Which of the following phenomena may be caused by a loop? (Multiple choice) 
A. The device can't remote login. 
B. When using the display interface command on the device to check the statistical information of the interface found the interface received a large number of broadcast packets. 
C. CPU occupancy rate is more than 70%. 
D. Through the ping command to test the network, packet loss serious. 
Answer: ABCD

During troubleshooting MSTP, you execute the display current-configuration command to get the configuration file of the device, what is wrong? 
A. Check the configuration of the port, and confirm whether the enabled MSTP's port enables the protocol packet send command. Such as: bpdu enable. 
B. Whether the port MSTP which connected to the user terminal device is in the state of enable or configured as an edge port. 
C. MSTP will not be affected whether a BPDU tunnel is configured on the device or not. 
D. Check whether the device port is added to the correct VLAN. 
Answer: C 

In a complex network environment with financial, OA (Office Automation System), production, and even more business systems, which of the following option does network troubleshooting firstly need to focus on? 
A. IP address allocation. 
B. Network equipment model. 
C. The data flow direction of each business system. 
D. Computer room environment. 
Answer: C

When performing service operational status check, which of the following is true? 
A. When check the multicast forwarding information, run "display multicast forwarding-table" command to check the Layer 2 multicast forwarding entries. 
B. When checking the multicast routing protocol, run "display multicast routing-table" command to check the multicast routing table. If PIM-SM is used in the intra-domain multicast routing protocol, IGMP is not enabled on the interfaces connected to the multicast group. 
C. When checking VRRP status, you can run "display vrrp" and "display vrrp statistics" commands to check. The "State" should be in the "Initialize" state. 
D. When checking the anti-attack detection configuration, you can run "display current-configuration | include car" command. There should be anti-attack configuration. If it is not configured, you can use "car" command to configure the attack defense function for the device. 
Answer: D

After the delivery of the project, the O&M costs will continue to be incurred. Which of the following are the costs incurred during the O&M? (Multiple choice) 
A. Energy costs 
B. Line construction costs 
C. Line rental costs 
D. Equipment depreciation costs 
E. Personnel costs 
Answer: ACE 

Enterprise network often use DHCP to assign IP addresses to users. Compared with static address allocation, DHCP address allocation greatly reduces the workload of managing network addresses. 
A. True 
B. False 
Answer: A

In the Layer 2 switching network, the device forwards data based on the MAC address, according to the MAC address of the data filtering. Therefore, the firewall operating in the transparent mode can not filter the Layer 3 information of the packets. 
A. True 
B. False 
Answer: B

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