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Question 13
What is query string
A query string is a set of parameters passed along with the url to the web server. a query string stats with ? character and multiples values are passed using & character. a typical example of query string is given below
url?topicid=2&questid=10
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Question 14
What is the maximum length of querystring
They are based on browser. maximum length supported by internet explorer is 2048. tested results are saying that firefox, opera and netscape support more than 10000 characters
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Question 15
What are benefits and limitations of query string
Advantages
very simple and easy to implement no server resources are required supported by all browsers
disadvantages
some browsers have a limit on maximum length supported querystings can be easily tampered
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Question 16
What is absolute and sliding expiration
Absolute expiration – in absolute expiration caching, cache object will be expired after the time set to this. for example if the time set is 5 minute, in every 5 minute cache object will be expired.
sliding expiration – in sliding expiration, if an object in cache is not accessed with in the specified time cache will be expired. when accessed it’s life will be extended for the same period again.
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Question 17
What is cross page posting
The process of submitting values from one .aspx page to another .aspx page is called cross page posting in asp.net. we can achieve cross page posting by setting postbackurl property of button
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Question 18
How to post to a different page
The process of submitting values from one .aspx page to another .aspx page is called cross page posting in asp.net. we can achieve cross page posting by setting postbackurl property of button
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