Week 10 Flashcards
When encountering an IPv4-only router, an IPv6 datagram is dropped (T/F)
False
When encountering an IPv4-only router, an IPv6 datagram is _____ an IPv4 datagram, with the _______ as its destination
encapsulated in, next in line IPv6 router
::ffff:ffff:fffff is a valid prefered format IPv6 address (T/F)
False
The method by which a MAC protocol coordinates access to a broadcast medium to prevent and/or reduce collisions is most commonly called:
multiple access
A network with a ____ topology must terminate the endpointe, but with a ______ topology they are connected so there is no endpoint
bus, ring
Which are functions of the Ethernet preamble?
Start signal, Circuit wake-up, Clock synchronization
A multiple access scheme which listens to the channel to make sure it is empty prior to transmitting is called:
Carrier sense protocol
A multiple access scheme which uses a master node to poll each slave node and control who has permision to transmit at any given time is called:
“Taking Turns” protocol
On the sending or receiving host, most of the protocol tasks “below” the application layer of the protocol stack (data encapsulation, IP addressing, etc.) are handled by
the network interface controller (NIC)
MAC addresses are redundant because of IP addresses
False
Most modern Ethernet LANs use a ____ topology
star
For a 10 Mbps link, 100 bit times is 0.1ms (T/F)
False
If an Ethernet sender senses a clear channel, and begins transmission, but shortly thereafter detects a collision, it will…
Terminate transmission and enter an exponential backoff
For a 10Mbps link, 1000 bit times is 0.1ms (T/F)
True
When a mobile unit moves from a home or foreign agent to another foreign agent, the new agent must assign….
a new “Care of” address to the mobile unit