[&] Given that you have a broadcast-based network containing hosts A, B, C and D...which of the following statements are true? (Select two answers)
- If Host-A transmits a unicast frame, it's possible that Hosts-C and D will read that frame but not Host-B.
- If Host-A transmits a multicast frame, it's possible that Hosts-B and C will read that frame but not Host-D.
- None of these answers are correct
- If Host-A transmits a multicast frame, it's possible that Host-B will read that frame but not Hosts C and D.
- If Host-A transmits a broadcast frame, it's possible that Hosts-B and C will read that frame but not Host-D.

[&] Which of the following statements is true regarding the structure of IPv4 addresses? (Select the best answer)
- IPv4 addresses are comprised of three sections, a "network" part, a "broadcast" part, and a "host" part
- IPv4 addresses are comprised of two sections, a "network" part and a "host" part
- IPv4 addresses are comprised of four sections, a "network" part, a "broadcast" part, a "multicast" part, and a "host" part
- IPv4 addresses are comprised of a single section, called a "network"

[&] Which of the following statements about MAC addresses and IPv4 addresses are true? (Select three answers)
- MAC addresses are 32-bits in length
- IPv4 addresses are 48-bits in length
- IPv4 addresses are 32-bits in length
- MAC addresses are 48-bits in length
- Upon receiving data off the network, the first address viewed by a host is the IPv4 address
- Upon receiving data off the network, the first address viewed by a host is the MAC address

[&] Hosts-A, B and Gateway-1 are on Network-1.  Host-C and Gateway-1 are on Network-2 (Gateway-1 has two interfaces connecting to two networks). Given that statement, which of the following are true? (Select the best answer)
- Host-A will know the Layer-2 MAC addresses of Host-C and Gateway-1 only
- Host-A will know the Layer-2 MAC address of Gateway-1 only
- Host-A will know the Layer-2 MAC addresses of Host-B and Gateway-1 only
- Host-A will know the Layer-2 MAC addresses of Host-B, Host-C and Gateway-1