单项选择题
Which command displays the current temperature of a Junos device's components?（）
A. show chassis temperature-thresholds B. show chassis environment C. show chassis hardware D. show chassis alarms
单项选择题 You are asked to change the cable on interface ge-0/2/1.Which statement is correct?（）
单项选择题 You are asked to change the cable on interface fe-4/2/3.Which statement is correct?（）
单项选择题 You are asked to change the cable on interface ge-2/1/3.Which statement is correct?（）
