Question 26 :
You have a large table that you wish to partition to improve performance. The table contains many columns of data about customers and you decide that basic information about each customer will remain in the current table. Extended information, such as shipping instructions, secretaries' names, etc. will be moved to a new table along with the PK. What type of partitioning is this?
If you are moving some columns from one table to a new table, this is vertical partitioning.
Question 27 :
On which platforms can you use Instant File Initialization to improve database growth performance in SQL Server 2005?
Windows 2003 and XP Pro
Both Windows 2003 Server and later as well as Windows XP Professional support Instant File Initialization.
Question 28 :
You have created a database snapshot on SQL Server 2005 for the sales database to capture the end-of-month activity. The next day your server fails and you need to recover to a standby server using the previous night's backups. How do you recover the snapshot?
There is nothing you can do. The snapshot is lost.
Database snapshots cannot be backed up, so once the server failed, the database snapshot was lost.
Question 29 :
Using Reporting Services 2005, it is true or false that subreports execute a query against the datasource once for every detail row in the report?
True. Subreports can be used for a master-detail relationship, or the subreport can be a separate item, but in either case RS will query to get the data for the report once for each detail row. If end users are going to only occasionally look at the data you're displaying in the subreport or only view it for a few rows, a better option is to create a link to the other report.
Question 30 :
You have noticed in both your SQL Server 2000 and 2005 instances that when a database grows in SQL Server, there is a delay in the database response. Why is that?
Once the file is grown, zeros are written to the new space, causing a delay.
When a database file grows, unless instant file initialization is turned on, the server must allocate disk space and then write 0s into all that space. This zero-ing out of the file creates the delay.