Free JK0-023 Exam Braindumps (page: 27)

Page 24 of 240

At which of the following layers of the OSI model do packets exist?

  1. Network
  2. Session
  3. Data Link
  4. Transport

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?

  1. SMTP
  2. SSH
  3. DNS
  4. TELNET

Answer(s): A



Which of the following is a Class A private IP address?

  1. 4.2.2.2
  2. 10.1.1.45
  3. 169.254.9.15
  4. 192.168.0.100

Answer(s): B



Which of the following reside at a minimum of Layer 3 of the OSI model? (Select TWO).

  1. Hub
  2. Switch
  3. MAC address
  4. IP address
  5. Router

Answer(s): D,E






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