ENetwork Chapter 9- CCNA Exploration: Networ k (2009-05-10 12:32:43) 转载标签: it分类: Posted by Space on Sunday, May 10, 2009 1 In the graphic, Host A has reached 50% completion in sending a1 KB frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do? 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 pleted sending its frame. 2 operates at which layers of the OSI model? (Choose two.) Network layer Transport layer **Physical layer Application layer Session layer **Data-link layer 3 Which of the following describe interframe spacing? (Choose two.) **the minimum interval, measured in bit-times, that any station must wait before sending another frame the maximum interval, measured in bit-times, that any station must wait before sending another frame the 96-bit payload padding inserted into a frame to achieve a legal frame size the 96-bit frame padding transmitted between frames to achieve proper synchronization **the time allowed for slow stations to process a frame and prepare for the next frame the maximum interval within which a station must send another frame to avoid being considered unre
