N10-004单项选择题每日一练(2019.01.23)

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1 Which of the following devices would allow a technician using a packet sniffer to view all the dataon a network?（）

2 Which of the following WAN protocols is a circuit switching technology?（）

3 Which of the following would contain information regarding network device alerts using SNMP?（）

4 Which of the following analyzes the entire subnet to identify all hosts that are active?（）

5 An administrator is unable to ping a workstation. Which of the following tools would BEST help toresolve the issue?（）