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 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 has completed sending its frame.
2 Ethernet operates at which layers of the OSI model? (Choose two.)
* Physical 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
the maximum interval, measured in bit-times, that any station must wait before sending
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
4 What three primary functions does data link layer encapsulation provide? (Choose
* error detection
* frame delimiting
IP address resolution
5 When a collision occurs in a network using CSMA/CD, how do hosts with data to
transmit respond after the backoff period has expired?
* The hosts return to a listen-before-transmit mode.
The hosts creating the collision have priority to send data.
The hosts creating the collision retransmit the last 16 frames.
The hosts extend their delay period to allow for rapid transmission.
6 What are three functions of the upper data link sublayer in the OSI model? (Choose