Security protocols?

Do you need to know stuf about PAP,chap,ms-chap etc for the exam or not? the book says its not mentioned but has people come across them for the exam?
Xbox Live: Bring It On
Bsc (hons) Network Computing - 1st Class
WIP: Msc advanced networking
Bsc (hons) Network Computing - 1st Class
WIP: Msc advanced networking
Comments
To second royal...... I also got quite a few quetions regarding authentication methods on 291...........
I am just as curious as JdotQ about which book tells you the exam doesn't question on these?
CCNA | CCNA:Security | CCNP | CCIP
JNCIA:JUNOS | JNCIA:EX | JNCIS:ENT | JNCIS:SEC
JNCIS:SP | JNCIP:SP
it was my stupid mistake - i was reading the sybex book and it was talking of the config methods for vpn etc on the client side and thats where it said this was not covered in the exam. the security protocols just happened to be on the next pages which i mistakenly included in that statement!
Bsc (hons) Network Computing - 1st Class
WIP: Msc advanced networking