Which two are advantages of static routing when compared to dynamic routing? (Choose two.)

Which two are advantages of static routing when compared to dynamic routing? (Choose two.)
A . Configuration complexity decreases as network size increases.
B . Security increases because only the network administrator may change the routing table.
C . Route summarization is computed automatically by the router.
D . Routing tables adapt automatically to topology changes.
E . An efficient algorithm is used to build routing tables, using automatic updates.
F . Routing updates are automatically sent to neighbors.
G . Routing traffic load is reduced when used in stub network links.

View Answer

Answer: B, G

Explanation:

When reading (or being lectured about) all the glorious details of dynamic routing protocols, it’s hard not to come away with the impression that dynamic routing is always better than static routing. It’s important to keep in mind that the primary duty of a dynamic routing protocol is to automatically detect and adapt to topological changes in the internetwork. The price of this "automation" is paid in bandwidth, security, and maybe queue space, in memory, and in processing time.

A frequent objection to static routing is that it is hard to administer. This criticism may be true of medium to large topologies with many alternative routes, but it is certainly not true of small internetworks with few or no alternative routes.

References:

http://www.ciscopress.com/articles/article.asp?p=24090&seqNum=6

http://www.ciscopress.com/articles/article.asp?p=24090