單項選擇題

Which of the following tools can be used to identify the location of a network outage?（）

A.traceroute
B.netstat
C.nslookup
D.ping

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單項選擇題

Which of the following metrics indentifies the number of connections that is between two devices?（）

A.Hop count
B.MTU
C.Latency
D.Bandwidth

單項選擇題

Several users are sending emails to CompTIA.org. but they are not being received. Which of thefollowing commands could be used to verify that the company is able to connect to the mailservice at CompTIA.org?（）

A.Ping
B.Arp
C.Dig
D.telnet