Query Strings

• name/value collection pairs.
• Send Data from 1 page to another with appended to the URL
• ?  is beginning of a query string and it's value.
• & is to append subsequent query string.

Advantage

• Easy to use

Disadvantage

• Have max length, cannot send too much data
• is visible in the URL, not suitable for sensitive informtaion.
• Cannot send [&] [and] space character. Must Encode.