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Question 1:

Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series.

Information and details provided in a question apply only to that question.

You need to examine information about logins, CPU times, and Disk I/O on a particular database in Microsoft Azure.

What should you use?

A. Activity Monitor

B. Sp_who3

C. SQL Server Management Studio (SSMS) Object Explorer

D. SQL Server Data Collector

E. SQL Server Data Tools (SSDT)

F. SQL Server Configuration Manager

Correct Answer: A

Activity Monitor displays information about SQL Server processes and how these processes affect the current instance of SQL Server. Activity Monitor is a tabbed document window with the following expandable and collapsible panes: Overview, Active User Tasks, Resource Waits, Data File I/O, and Recent Expensive Queries.

The Activity User Tasks Pane shows information for active user connections to the instance, including the following column:

The Recent Expensive Queries Pane shows information about the most expensive queries that have been run on the instance over the last 30 seconds, including the following column:

CPU (ms/sec): The rate of CPU use by the query

References:https://technet.microsoft.com/en-us/library/cc879320(v=sql.105).aspx

Question 2:

You have a database that stores information for a shipping company. You create a table named Customers by running the following Transact-SQL statement. (Line numbers are included for reference only.)

You need to ensure that salespeople can view data only for the customers that are assigned to them. Which Transact-SQL segment should you insert at line 07?

A. RETURNS varchar(20)WITH Schemabinding

B. RETURNS dbo.CustomersORDER BY @salesPerson

C. RETURNS tableORDER BY @salesPerson

D. RETURNS tableWITH Schemabinding

Correct Answer: D

The return value can either be a scalar (single) value or a table. SELECT 1 just selects a 1 for every row, of course. What it\’s used for in this case is testing whether any rows exist that match the criteria: if a row exists that matches the WHERE clause, then it returns 1, otherwise it returns nothing. Specify the WITH SCHEMABINDING clause when you are creating the function. This ensures that the objects referenced in the function definition cannot be modified unless the function is also modified.

References: https://docs.microsoft.com/en-us/sql/t-sql/statements/create-function-transact- sql

Question 3:

You use SQL Server 2016 to maintain the data used by applications at your company.

You want to execute two statements.

You need to guarantee that either both statements succeed, or both statements fail together as a batch.

Which code should you use?

A. Option A

B. Option B

C. Option C

D. Option D

E. Option E

Correct Answer: D

Structure should be: BEGIN TRY BEGIN TRANSACTION COMMIT TRANSACTION END TRY BEGIN CATCH ROLLBACK TRANSACTION END CATCH.

Reference: TRY…CATCH (Transact-SQL)

Question 4:

You need to recommend a solution to allow application users to perform UPDATE operations on the database tables. The solution must meet the business requirements. What should you recommend?

A. Create a user-defined database role and add users to the role.

B. Create stored procedures that use EXECUTE AS clauses.

C. Create a Policy-Based Management Policy.

D. Create functions that use EXECUTE AS clauses.

Correct Answer: B

Question 5:

You have a database named DB1 that stores more than 700 gigabyte (GB) of data and serves millions of requests per hour.

Queries on DB1 are taking longer than normal to complete.

You run the following Transact-SQL statement:

SELECT * FROM sys.database_query_store_options

You determine that the Query Store is in Read-Only mode.

You need to maximize the time that the Query Store is in Read-Write mode.

Which Transact-SQL statement should you run?

A. ALTER DATABASE DB1SET QUERY_STORE (QUERY_CAPTURE_MODE = ALL)

B. ALTER DATABASE DB1SET QUERY_STORE (MAX_STORAGE_SIZE_MB = 50)

C. ALTER DATABASE DB1SET QUERY_STORE (CLEANUP_POLICY = (STALE_QUERY_THRESHOLD_DAYS = 14));

D. ALTER DATABASE DB1SET QUERY_STORE (QUERY_CAPTURE_MODE = NONE)

Correct Answer: C

Stale Query Threshold (Days): Time-based cleanup policy that controls the retention period of persisted runtime statistics and inactive queries. By default, Query Store is configured to keep the data for 30 days which may be unnecessarily

long for your scenario.

Avoid keeping historical data that you do not plan to use. This will reduce changes to read- only status. The size of Query Store data as well as the time to detect and mitigate the issue will be more predictable. Use Management Studio or the

following script to configure time-based cleanup policy:

ALTER DATABASE [QueryStoreDB]

SET QUERY_STORE (CLEANUP_POLICY = (STALE_QUERY_THRESHOLD_DAYS =

14));

References:https://docs.microsoft.com/en-us/sql/relational-databases/performance/best- practice-with-the-query-store

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Question 6:

You have a server named Server1 that has 16 processors.

You plan to deploy multiple instances of SQL Server 2016 to Server1. You need to recommend a method to allocate processors to each instance.

What should you include in the recommendation?

More than one answer choice may achieve the goal. Select the BEST answer.

A. Processor affinity

B. Windows System Resource Manager (WSRM)

C. Max Degree of Parallelism

D. Resource Governor

Correct Answer: A

CPU affinity management through Windows System Resource Manager is not recommended for SQL Server multi-instance management. Instead, use the processor affinity settings in SQL Server. Reference: Server Properties (Processors Page)

Question 7:

You have a database named DB1.

You plan to create a stored procedure that will insert rows into three different tables. Each insert must use the same identifying value for each table, but the value must increase from one invocation of the stored procedure to the next.

Occasionally, the identifying value must be reset to its initial value.

You need to design a mechanism to hold the identifying values for the stored procedure to use.

What should you do?

More than one answer choice may achieve the goal. Select the BEST answer.

A. Create a sequence object that holds the next value in the sequence. Retrieve the next value by using the stored procedure. Reset the value by using an ALTER SEQUENCE statement as needed.

B. Create a sequence object that holds the next value in the sequence. Retrieve the next value by using the stored procedure. Increment the sequence object to the next value by using an ALTER SEQUENCE statement. Reset the value as needed by using a different ALTER SEQUENCE statement.

C. Create a fourth table that holds the next value in the sequence. At the end each transaction, update the value by using the stored procedure. Reset the value as needed by using an UPDATE statement.

D. Create an identity column in each of the three tables. Use the same seed and the same increment for each table. Insert new rows into the tables by using the stored procedure. Use the DBCC CHECKIDENT command to reset the columns as needed.

Correct Answer: A

an application can obtain the next sequence number without inserting the row by calling the NEXT VALUE FOR function.

ALTER SEQUENCE

Includes argument:

RESTART [ WITH ]

The next value that will be returned by the sequence object. If provided, the RESTART WITH value must be an integer that is less than or equal to the maximum and greater than or equal to the minimum value of the sequence object. If the

WITH value is omitted, the sequence numbering restarts based on the original CREATE SEQUENCE options.

CREATE SEQUENCE

Creates a sequence object and specifies its properties. A sequence is a user-defined schema bound object that generates a sequence of numeric values according to the specification with which the sequence was created. The sequence of

numeric values is generated in an ascending or descending order at a defined interval and can be configured to restart (cycle) when exhausted.

Sequence Numbers

Question 8:

You deploy a SQL Server instance named SQLProd that uses SQL Server 2016.

You need to recommend a solution to monitor the transactions that are running currently against SQLProd. The solution must minimize the amount of custom code required.

What should you recommend?

A. Statistics

B. A dynamic management view

C. A trigger

D. User-defined views

Correct Answer: B

Dynamic management views and functions return server state information that can be used to monitor the health of a server instance, diagnose problems, and tune performance. Transactions can be monitored.

Reference: Dynamic Management Views and Functions (Transact-SQL)

Question 9:

You are designing a Windows Azure SQL Database for an order fulfillment system. You create a table named Sales.Orders with the following script.

Each order is tracked by using one of the following statuses:

Fulfilled

Shipped

Ordered

Received

You need to design the database to ensure that that you can retrieve the following information:

The current status of an order

The previous status of an order.

The date when the status changed.

The solution must minimize storage.

More than one answer choice may achieve the goal. Select the BEST answer.

A. To the Sales.Orders table, add three columns named Status, PreviousStatus and ChangeDate. Update rows as the order status changes.

B. Create a new table named Sales.OrderStatus that contains three columns named OrderID, StatusDate, and Status. Insert new rows into the table as the order status changes.

C. Implement change data capture on the Sales.Orders table.

D. To the Sales.Orders table, add three columns named FulfilledDate, ShippedDate, and ReceivedDate. Update the value of each column from null to the appropriate date as the order status changes.

Correct Answer: B

Question 10:

You are designing a monitoring application for a new SQL Server 2016 instance.

You need to recommend a solution to generate a report that displays the 10 most frequent wait types that occur for the instance.

Which of following answer should you include in the recommendation?

A. SQL Server Profiler

B. The SQL Server error log

C. The DBCC SQLPERF(WAITSTATS) command

D. The sys.dm_os_wait_stats dynamic management view

Correct Answer: D

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