CCNA 1 Chapter 9 V4.0 Answers
1. In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame
to Host D when Host B wishes to transmit its own frame to Host C. What must Host B
Host B can transmit immediately since it is connected on its own cable segment.
Host B must wait to receive a CSMA transmission from the hub, to signal its turn.
Host B must send a request signal to Host A by transmitting an interframe gap.
Host B must wait until it is certain that Host A has completed sending its frame.
2. Ethernet operates at which layers of the OSI model? (Choose two.)