Which of the following operations is performed in the risky operation process?
Risky operation refers to all operations that may affect the stable running of the device/ proper running of customer services, or normal monitoring on the NMS.
When a large number of IP phones and WLAN APs exist on a network, which of the following switches is used?
Which of the following link can run PPP instead of HDLC? (Multiple Choice)
During troubleshooting, you analyze and check the fault cause at the access layer, aggregation layer, and core layer in sequence. Which of the following troubleshooting methods is used in this process?