$3\mathrm{.}1-5$ Network$-$layer functionality. The transport layer sits on top of the network

layer, and provides its services using the services provided to it by the network

layer. Thus it's important that we know what is meant by the network layer's "best

effort" delivery service. True or False:

The network layer's best$-$effort delivery service means that IP makes its "best

effort" to deliver segments between communicating hosts, but it makes no

guarantees. In particular, it does not guarantee segment delivery, it does not

guarantee orderly delivery of segments, and it does not guarantee the integrity of

the data in the segments.

Correct! The network layer's best effort service doesn't really provide much

service at all, does it$?$

Nope. The network layer's best effort service doesn't really provide much service

at all, does it$?$