Overview:
A routing table consists of entries to networks that are either directly connected, statically configured or dynamically learned. To view a routing table use the “show ip route” command. You will be presented with something like the following:
The CCNA exam covers the following routing table components topics. Each topic will explore a different part of the routing table pictured above.
3.2.a Prefix
3.2.b Network mask
3.2.c Next hop
3.2.d Routing protocol code
3.2.e Administrative distance
3.2.f Metric
3.2.g Gateway of last resort
Links: http://www.ciscopress.com/articles/article.asp?p=2180210&seqNum=12