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NEW QUESTION 51
You have an Azure subscription that contains the resources shown in the following table.
You need to configure a connection between VM1 and MIL The solution must meet the following requirements:
* The connection must be encrypted.
* Network latency must be minimized.
What should you implement?
- A. virtual network peering
- B. private endpoints
- C. service endpoints
- D. a site-to-site VPN
Answer: B
NEW QUESTION 52
You have an Azure SQL database.
Users report that the executions of a stored procedure are slower than usual. You suspect that a regressed
query is causing the performance issue.
You need to view the query execution plan to verify whether a regressed query is causing the issue. The
solution must minimize effort.
What should you use?
- A. Extended Events in Microsoft SQL Server Management Studio (SSMS)
- B. Performance Recommendations in the Azure portal
- C. Query Store in Microsoft SQL Server Management Studio (SSMS)
- D. Query Performance Insight in the Azure portal
Answer: C
Explanation:
Section: [none]
Explanation:
Use the Query Store Page in SQL Server Management Studio.
Query performance regressions caused by execution plan changes can be non-trivial and time consuming to
resolve.
Since the Query Store retains multiple execution plans per query, it can enforce policies to direct the Query
Processor to use a specific execution plan for a query. This is referred to as plan forcing. Plan forcing in Query
Store is provided by using a mechanism similar to the USE PLAN query hint, but it does not require any change
in user applications. Plan forcing can resolve a query performance regression caused by a plan change in a
very short period of time.
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/performance/monitoring-performance-by-using-the-
query-store
NEW QUESTION 53
HOTSPOT
You are evaluating the role assignments.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Hot Area:
Answer:
Explanation:
Section: [none]
Explanation:
Box 1: Yes
DBAGroup1 is member of the Contributor role.
The Contributor role grants full access to manage all resources, but does not allow you to assign roles in Azure RBAC, manage assignments in Azure Blueprints, or share image galleries.
Box 2: No
Box 3: Yes
DBAGroup2 is member of the SQL DB Contributor role.
The SQL DB Contributor role lets you manage SQL databases, but not access to them. Also, you can't manage their security-related policies or their parent SQL servers. As a member of this role you can create and manage SQL databases.
Reference:
https://docs.microsoft.com/en-us/azure/role-based-access-control/built-in-roles Question Set 3
NEW QUESTION 54
You plan to move two 100-GB databases to Azure.
You need to dynamically scale resources consumption based on workloads. The solution must minimize downtime during scaling operations.
What should you use?
- A. An Azure SQL Database elastic pool
- B. Azure SQL databases
- C. SQL Server on Azure virtual machines
- D. an Azure SQL Database managed instance
Answer: A
Explanation:
Azure SQL Database elastic pools are a simple, cost-effective solution for managing and scaling multiple databases that have varying and unpredictable usage demands. The databases in an elastic pool are on a single server and share a set number of resources at a set price.
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/elastic-pool-overview
NEW QUESTION 55
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?
- A. PARAMETERIZATIONto FORCED
- B. PARAMETERIZATIONto SIMPLE
- C. Delayed Durability to Forced
- D. READ_COMMITTED_SNAPSHOTto ON
Answer: D
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
NEW QUESTION 56
......
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