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  1. Home
  2. Microsoft Certification
  3. DP-300 Exam
  4. Microsoft.DP-300.v2024-01-23.q244 Dumps
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Question 81

You deploy a database to an Azure SQL Database managed instance.
You need to prevent read queries from blocking queries that are trying to write to the database.
Which database option should set?

Correct Answer: D
Section: [none]
Explanation:
In SQL Server, you can also minimize locking contention while protecting transactions from dirty reads of
uncommitted data modifications using either:
* The READ COMMITTED isolation level with the READ_COMMITTED_SNAPSHOT database option set to
ON.
* The SNAPSHOT isolation level.
If READ_COMMITTED_SNAPSHOT is set to ON (the default on SQL Azure Database), the Database Engine
uses row versioning to present each statement with a transactionally consistent snapshot of the data as it
existed at the start of the statement. Locks are not used to protect the data from updates by other transactions.
Incorrect Answers:
A: When the PARAMETERIZATION database option is set to SIMPLE, the SQL Server query optimizer may
choose to parameterize the queries. This means that any literal values that are contained in a query are
substituted with parameters. This process is referred to as simple parameterization. When SIMPLE
parameterization is in effect, you cannot control which queries are parameterized and which queries are not.
B: You can specify that all queries in a database be parameterized by setting the PARAMETERIZATION
database option to FORCED. This process is referred to as forced parameterization.
C: Delayed transaction durability is accomplished using asynchronous log writes to disk. Transaction log
records are kept in a buffer and written to disk when the buffer fills or a buffer flushing event takes place.
Delayed transaction durability reduces both latency and contention within the system.
Some of the cases in which you could benefit from using delayed transaction durability are:
* You can tolerate some data loss.
* You are experiencing a bottleneck on transaction log writes.
* Your workloads have a high contention rate.
Reference:
https://docs.microsoft.com/en-us/sql/t-sql/statements/set-transaction-isolation-level-transact-sql
insert code

Question 82

You have an Azure SQL logical server.
You run the following script.

Correct Answer:
insert code

Question 83

You have an Azure SQL database named DB 1 in the General Purpose service tier.
You need to monitor DB 1 by using SQL Insights.
What should you include in the solution? To answer, select the appropriate options in the answer are
a.
NOTE: Each correct selection is worth one point.

Correct Answer:
insert code

Question 84

You have a 50-TB Microsoft SQL Server database named DB1.
You need to reduce the time it takes to perform database consistency checks of DB1.
Which Transact-SQL command should you run? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Correct Answer:

Explanation
Table Description automatically generated with low confidence

Reference:
https://docs.microsoft.com/en-us/sql/t-sql/database-console-commands/dbcc-checkdb-transact-sql?view=sql-serv
insert code

Question 85

You have an Azure subscription.
You plan to deploy a new Azure virtual machine that will host a Microsoft SQL Server instance.
You need to configure the disks on the virtual machine. The solution must meet the following requirements:
* Minimize latency for transaction logs.
* Minimize the impact on IO Of the virtual machine.
Which type of disk should you use for each workload? To answer. drag the appropriate disk types to the correct workloads. Each disk type may be used once, at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.

Correct Answer:

Explanation

Graphical user interface, text, application Description automatically generated
insert code
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