Chapter 1 Introduction to Network Security 1) Which of the following is the unique address of the network interface card (NIC)? A) IP address B) NIC address C) MAC address D) URL address Answer: C 2) Which of the following commands can you use to find your computer‟s IP address and network information about your system? A) Ipconfig B) Ping C) Tracert D) None of the above Answer: A 3) Which of the following commands can be used to determine if a system is reachable and how long a packet takes to reach that system? A) Ipconfig B) Ping C) Tracert D) None of the above Answer: B 4) Which of the following protocols operates at the transport layer of the OSI model? A) FTP B) TCP C) DNS D) IP Answer: B 5) Which of the following layers of the OSI model is responsible for routing the information in the network? A) Transport layer B) Network layer C) Session layer D) Physical layer Answer: B 6) The OSI model is divided into how many layers?