CCNA Exploration Network Fundamentals Chapter 9 Test

Network Fundamentals - Chapter 9 Exam 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 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.

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 unreachable

4 What three primary functions does data link layer encapsulation provide? (Choose three.)

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 three.)

recognizes streams of bits

identifies the network layer protocol

makes the connection with the upper layers identifies the source and destination applications