What command do you use to test a system’s IPv4 protocol stack?
A. ping 127.0.0.1
B. ping self
C. ping 255.255.255.255
D. ping defaultgateway
Answer: A
What command do you use to display active TCP or UDP connections?
A. nbtstat
B. netstat
C. ipconfig
D. nslookup
Answer: B
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