Checkpoint?

Hi,
Can anybody pls explain
Q1. What is checkpoint?
Q2. Why it is needed?
Q3. When does it occurs?
Q4. What it is doing after getting activated?

Thanx in advance

Have you bothered to read any documentation on the subject yet?

Checkpoint (noun)
A place where offical documentation is checked.

Quote:

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Originally posted by Rickenbacker
Checkpoint (noun)
A place where offical documentation is checked.

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Heh heh heh.

Quote:

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Originally posted by Rickenbacker
A place where offical documentation is checked.

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Not in India ( its there for name sake, no one checks ;) :D )

I know it is in Iraq now. It's being checked by US army...

Here is some info from Google search...

http://www.adp-gmbh.ch/ora/concepts/checkpoint.html
http://www.geocities.com/samoracle/swcheckpoint.htm

Thanks.