[DUK]

what are glycosidic bonds? give examples

[JGK]

I would suggest you use a search engine (google perhaps?) before asking this type of question.  This information is readily available and any simple search will bring up links such as:

http://en.wikipedia.org/wiki/Glycosidic_bond

http://www.bmb.psu.edu/courses/bmb401_spring2003/carbohydrates_2.pdf

http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/Carbohydrates.html

I suspect this type of question is as much about refining your Net searching skills as it is about getting an answer. Master it now and it will serve you well in future.