Week 10 Summary

Question 1

The “Hop Limit” IPv6 header field indicates how many remaining hops to the destination.

Answer 1

FALSE

Question 2

It is fairly easy to detect collisions in wired networks.

Answer 2

TRUE

Question 3

A multiple access scheme which listens to the channel to make sure it is empty, prior to transmitting, is called…

Answer 3

carrier sense protocol

Question 4

In Random Access multiple access schemes, no two nodes will ever transmit at the same time.

Answer 4

FALSE

Question 5

It is fairly easy to detect collisions in wireless networks.

Answer 5

FALSE

Question 6

Bus Ethernet uses a random access scheme.

Answer 6

TRUE

Question 7

A network with a BUS topology must terminate the endpoints, but in with a RING topology they are connected so there is no endpoint.

Answer 7

TRUE

Question 8

If an Ethernet sender senses a clear channel, and begins transmission, but shortly thereafter detects a collision, it will…

Answer 8

Terminate transmission and enter exponential backoff.

Question 9

In one type of wireless network, hosts communicate directly with other hosts that are within range. This communication model forms a “grid” called a(n)

Answer 9

ad-hoc network

Question 10

A device which is connected to the network through a link which does not utilize any physical connection is a [ Select ] device.

Answer 10

wireless

Question 11

When a mobile unit moves from a home or foreign agent to another (foreign) agent, the new agent must assign…. (Check all that apply)

Answer 11

a new “care-of” address to the mobile unit

Question 12

In indirect routing, after the initial contact with the home network, the correspondent sends packets to

Answer 12

The permanent address