单项选择题
Which CLI mode allows you to make configuration changes?（）
A. enable mode
B. configuration mode
C. operational mode
D. active mode
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单项选择题
Which command do you use to display the messages seen during the last system boot?（）
A. show system boot-messages
B. show chassis messages
C. show file system boot-messages
D. show boot-log messages -
单项选择题
During a password recovery, what is the next step after configuring the system to boot into single-user mode?（）
A. Reset the root password
B. Press the space bar
C. Type recovery
D. Press the "Enter" key -
多项选择题
What are three benefits of class of service?（）
A. It can make a slow network faster
B. It can prioritize latency-sensitive traffic
C. It can elimitane congestion
D. It can control congestion
E. It can allocate bandwidth for different classes of traffic
