Share some HCNP-R&S H12-223-ENU exam questions and answers below.
What circumstances is "Loop" test generally used in ?
A. Test whether the application can be properly connected.
B. Test whether the routing protocol can effectively avoid loops.
C. Test whether the switch can effectively perform loop containment and broadcast containment.
D. Test whether the physical line is interrupted.
Answer: D
Which of the following are the sources of demand for network optimization? (Multiple choice)
A. After a long period of network maintenance, the summary of some of the problems and improvements, put forward relevant recommendations for centralized rectification.
B. The network needs to carry out video conference services, need to increase support for Layer 2 multicast switching equipment
C. A weak well due to environmental problems, the signal line aging serious, need to focus on replacement.
D. Enterprise information security needs, adding new security equipment.
Answer: ABCD
You use a Huawei router as an SSH client to log in to another Huawei router, but the login fails.You suspect SSH server configuration may be wrong, when checking the reasons of server-side failure, which of the following is the most unlikely?
A. The user interface VTY interface is not bound to the SSH protocol.
B. The user service type, authentication type, and user authentication service type are not configured.
C. The SSH versions of server and client are inconsistent.
D. The first-time SSH authentication function is disabled.
Answer: D
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
When configuring the DHCP relay function on a device, the replay connecting the client's VLANIF interface must be bound to the DHCP server group, and the bound DHCP server group must be configured with the DHCP server IP address.
A. True
B. False
Answer: A
When troubleshooting the EBGP neighbor relationship, If you find that two directly connected devices use loopback interfaces to establish connection, run "display current-configuration configuration bgp" command to check the configuration of "peer ebgp-max-hop hop-count". Which of the following statements is correct?
A. hop-count must be greater than 1.
B. hop-count must be greater than 2.
C. hop-count must be greater than 15.
D. hop-count must be greater than 255.
Answer: A
Optical power generally uses dbm to represent, which dbm value is the current majority of optical transceiver equipment can receive and identify data?
A. -30dbm
B. -10dbm
C. 10dbm
D. 30dbm
Answer: B
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