QUESTION $20$

When a host moves from one network to a new network, it will be assigned both a new MAC address and a new IP address for it to use in the new network.

True

False

QUESTION $21$

The star physical topologies of Ethernet must use switches.

$$ True

$$ False

$q,$

QUESTION $22$

The link layer is fully implemented in the hardware of network interface card

$$ True

$$ False

$q,$

$q,$

QUESTION $23$

Even if we can always have link layer reliable delivery, we may still need TCP$\text{'}$s reliable data delivery at transport layer.

$$ True

$$ False