• What is a NIC?
• What is a MAC Address?
• When would you use a crosslink cable?
• What are the main advantages and disadvantages of Fiber-Optic-based networks?
• What is the difference between a Hub and a Switch?
• On which OSI layer can a router be found?
• What is CSMA/CD?
• What is multicast?
• What is Broadcast?
• What is the difference between TCP and UDP?
• Describe some of the settings that are added by TCP and by UDP to the packet’s header.
• What are TCP Ports? Name a few.
• What is a TCP Session?
• What three elements make up a socket?
• What will happen if you leave the default gateway information empty while manually configuring TCP/IP?
• What will happen if you execute the following command: “arp -d *”?
• What is ICMP?
• When would you use the ping command with the “-t” switch?
• What command-line tool would help you discover for which port numbers your computer is listening?
• What is APIPA? How would you recognize it?
• What is a Cyclic Redundancy Check?
• What would you type in at a command prompt to view the IP settings for the computer that you are sitting at?
• What command would you type in at a command prompt to view the IP address of the remote computer?
• What is the W Value for class B?
• What is the Net ID of an IP Address of 18.9.25.3 with Subnet Mask of 255.0.0.0?
• What is CIDR?
• What is 255.255.255.255 used for?
• What is the maximum number of hosts for a Class B Network?
• What is the (default) class type of 195.152.12.1?
• What is the subnet mask for 10.0.10.1/17?
• What is the result when changing from a subnet mask of 255.255.224.0 to a subnet mask of 255.255.240.0?
• How can you access a shared folder from a remote computer? Name at least 3

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