At which of the following layers of the OSI model do packets exist?
Answer(s): A
An administrator is using a packet sniffer to try to determine what is causing the traffic on the network. The administrator sees a lot of packets on port 25. Which of the following traffic types is MOST likely using port 25?
Which of the following is a Class A private IP address?
Answer(s): B
Which of the following reside at a minimum of Layer 3 of the OSI model? (Select TWO).
Answer(s): D,E
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