Salesforce Interview Questions-Data Management Part-2

6. Can we avoid duplicates using apex data loader which we can do through import wizard?
No.

7. What is Bulk API?
The Bulk API is used to upload high volume of data (millions of records).
The Data Loader uses the SOAP-based Web Services API by default. To use the Bulk API instead, check “Bulk API” checkbox in apex data loader settings page.
When you check Bulk API checkbox, increases the batch (upto 10000 records) which is usually 200 in normal upload.
Hard delete bypasses the Recycle Bin, so deleted records do not consume storage space and there is no way to retrieve them.

8. What is difference between “Export” and “Export All” in apex data loader?
Export: It will fetch only active records from salesforce.
Export All: It will fetch active as well as records from recycle bin.

9. True or False: Users can mass transfer records to which they do not have read access?
False

10. What is DateTime format supported in .csv file for upload in salesforce?
YYYY-MM-DDThh:mm:ss.00Z

11. Is there is any option to specify time zone for uploading records in apex data loader?
Yes. Present in settings page of apex data loader.

12. When “Hard Delete” button will be enabled in apex data loader?
When you enable Bulk API setting in apex data loader.