3. Circle the most correct answer to each of the following questions:

1. A Switched LAN is different from a Shared LAN in that: (A) each node on the Switched LAN gets access to the full bandwidth; (B) each node is on a separate LAN segment; (C) frames sent by a node are forwarded only to the destination node on the LAN; (D) options (A) and (B) above; (E) options (A), (B) and (C) above.

2. Collisions can happen on a Shared LAN because: (A) Bandwidth is shared across the LAN; (B) Bandwidth is not shared across the LAN; (C) two transmitting nodes may be far enough away, such that each starts transmitting without knowing (yet) that the other has also started transmitted; (D) there isnt enough bandwidth on the LAN; (E) None of the above.

3. The CS (Carrier Sense) in CSMA implies: (A) nodes are sensitive to carriers; (B) each node on the LAN is able to sense whether the link is idle or busy, and act accordingly; (C) multiple nodes can share the LAN; (D) collisions are possible; (E) All of the above.