You administer a Microsoft SQL Server 2012 instancethat contains a financial database hosted on a storage
area network (SAN).
The financial database has the following characteristics:
A data file of 2 terabytes is located on a dedicated LUN (drive D).
A transaction log of 10 GB is located on a dedicated LUN (drive E).
Drive D has 1 terabyte of free disk space.
Drive E has 5 GB of free disk space.
The database is continually modified by users during business hours from Monday through Friday between
09:00 hours and 17:00 hours.
Five percent of the existing data is modified each day.
The Finance department loads large CSV files into anumber of tables each business day at 11:15 hours and
15:15 hours by using the BCP or BULK INSERT commands.
Each data load adds 3 GB of data to the database.
These data load operations must occur in the minimum amount of time.
A full database backup is performed every Sunday at10:00 hours. Backup operations will be performed every
two hours (11:00, 13:00, 15:00, and 17:00) during business hours.
You need to ensure that the backup size is as smallas possible.
Which backup should you perform every two hours?
A.
BULK_LOGGED
B.
NO_CHECKSUM
C.
FULL
D.
RESTART
E.
CHECKSUM
F.
STANDBY
G.
DBO.ONLY
H.
NORECOVERY
I.
SIMPLE
J.
Transaction log
K.
Differential
L.
CONTINUE_AFTER_ERROR
M.
COPY_ONLY
N.
SKIP
Explanation:
Verified answer as correct.
Reference: http://msdn.microsoft.com/en-us/library/ms186865.aspx
Reference: http://msdn.microsoft.com/en-us/library/ms191429.aspx
Reference: http://msdn.microsoft.com/en-us/library/ms179478.aspx
The possible Solutions are j) Transaction log and k) differential, because a full backup happens already at sunday.
the differential backup would grow because ALL differences to the last full backup are always written.
if you make a Transaction log backup then only the Transactions since last Transaction log backup are taken. so it should be as small as possible.
the right solution therefore is j) transaction log
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I agree with possible solutions ie J and K.
If you can run a bulk insert operation :
* the database is not in Full recovery mode.
* you cannot run a backup log after since a full backup as run
According to the operations schedule, Differential must be the good one.
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Thanks Testee for all the explanations. It is really helpful.
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The Question says every two hours, i believe it should be a differential backup, a transaction log back is taken by the minute.
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T-Log backup is the correct option.
Differential backup would only increase in size every 2 hours, also the old Diff backups becomes useless once you take a new Diff backup.
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