Backup db using expdb/impdb (Oracle 11g Windows 2003)

Hi Guys,
I'm currently doing backups using expdb/impdb due to problems we have with BackupExec when I use RMAN. But what I want to find out is that would you call expdb/impdb a hot or a cold backup? Or should I say what happens when the user is trying to access the database while expdb/impdb is in progress?
Thank you.

expdp is not consider any form of backup. It's just an alternate way to export the data into dump files and import when required. You can not do any sort of recovery with expdp dumps.
depends on number of CPU's you have and number of parallel threads you are using, users may experience spikes in the busy database.
Regards,
-Vijay

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bullock
FROM TABLE(xmlsequence(reeves.EXTRACT('/a:hopper', namespaces))) t;
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SELECT EXTRACT(VALUE(t), 'text()').getstringval() AS
bullock
FROM TABLE(xmlsequence(reeves.EXTRACT('/a:hopper', namespaces))) t;
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SELECT EXTRACT(VALUE(t), 'text()').getstringval() AS
bullock
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SELECT EXTRACT(VALUE(t), 'text()').getstringval() AS
bullock
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SELECT EXTRACT(VALUE(t), 'text()').getstringval() AS
bullock
FROM TABLE(xmlsequence(reeves.EXTRACT('/a:hopper', namespaces))) t;
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SELECT EXTRACT(VALUE(t), 'text()').getstringval() AS
bullock
FROM TABLE(xmlsequence(reeves.EXTRACT('/a:hopper', namespaces))) t;
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bullock
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bullock
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