[&] A laptop learns that its IP address has an associated subnet mask (in binary) of 11111111 11110000 00000000 00000000. Given this mask, which of the following statements are true? (Select the best answer)
- The first twenty (20) bits of any destination IP address will be inspected to determine if the destination is on-network or off-network.
- The IP address associated with this mask is a Class-B address.
- The last twenty (20) bits of any destination IP address will be inspected to determine if the destination is on-network or off-network.
- The first twelve (12) bits of any destination IP address will be inspected to determine if the destination is on-network or off-network. -- Correct
- The IP address associated with this mask is a Class-C address.

[&] Which type of IP address indicates that all nodes connected to a network should process/read this IP packet? (Select the best answer)
- Broadcast -- Correct
- Unicast
- Multicast
- Anycast

[&] A network administrator informs you that CIDR has been implemented in your network.  What does this mean? (Select the best answer)
- A new apple-juice dispenser has been installed in the breakroom.
- All devices are utilizing classful addresses to determine their own, local network.
- All devices with IP addresses are also utilizing subnet masks. -- Correct
- All devices have been rolled back to IPv3.

[&] Which type of IP address indicates that a transmitted packet is only intended for one, single destination recipient? (Select the best answer)
- Unicast -- Correct
- Multicast
- Anycast
- Broadcast

[&] What class of address is 98.100.203.4? (Select the best answer)
- Class-A -- Correct
- Class-C
- Class-B
- Class-D

[&] Identify the class of this IPv4 address that is given in binary: 11101100 11111111 00000000 10100100 (Select the best answer)
- Class-D -- Correct
- Class-B
- Class-A
- Class-C

[&] Which of the following are valid reasons why one should be able to comprehend the logic behind Classful Addressing? (Select the best answer)
- There is absolutely no reason why a person still needs to understand Classful Addressing.
- Because most hosts still utilize classful IP addresses
- In order to understand how some protocols perform route summarization. -- Correct
- Because hosts utilizing CIDR still rely on Classful Addressing

[&] What class of address is 191.168.200.1? (Select the best answer)
- Class-D
- Class-A
- Class-C
- Class-B -- Correct