Microsoft 70-464 ExamDeveloping Microsoft SQL Server 2012 Databases

Total Question: 183 Last Updated: September 12,2017
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Q91. You need to add a new column named Confirmed to the Employees table. The solution must meet the following requirements: 

. Have a default value of TRUE. 

. Minimize the amount of disk space used. 

Which code segment should you use? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:


Q92. You need to create the InvoiceStatus table in DB1. 

How should you define the InvoiceID column in the CREATE TABLE statement? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:


Q93. You need to implement a solution that addresses the upload requirements. Which code segment should you use to implement the Conversions assembly? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:


Q94. You have a database named Database1. Database1 has two stored procedures named Proc1 and Proc2 and a table named Table1. Table1 has millions of rows. 

Proc1 updates data in Table1. Proc2 reads data from Table1. 

You discover that when Proc1 is executed to update more than 4,000 rows, Proc2 is blocked. The block affects all rows, including those that are not being updated by Proc1. 

You need to ensure that when Proc1 is executing, Proc2 can access the data in Table1 that Proc1 is not updating. 

What should you change Proc1 to do? 

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

A. Update less than 4,000 rows simultaneously. 

B. Use the PAGLOCK table hint. 

C. Wait for Proc2 to complete. 

D. Use the ROWLOCK table hint. 

Answer:


Q95. Topic 8) 

You have a SQL Server 2012 database named Database1. Database1 has a data file named Database1_data.mdf and a transaction log named Database1jog.ldf. Database1_data.mdf is 1.5 GB. Database1jog.ldf is 1.5 terabytes. 

A full backup of Database1 is performed every day. 

You need to reduce the size of the log file. The solution must ensure that you can perform transaction log backups in the future. 

Which code segment should you execute? 

To answer, move the appropriate code segments from the list of code segments to the answer area and arrange them in the correct order. 

Answer: 


Q96. You have a database that contains a user-defined function named Schema1.Udf1 and two tables named Schema1.Table1 and Schema1.Table2. 

Schema1.Table1 has 1 million rows. The schema for Schema1.Table1 is configured as shown in the following table. 

Schema1.Udf1 was defined by using the following code: You need to write a query that will contain the following columns: 

... 

Country CountryID CustomerName 

The solution must meet the following requirements: 

.. 

Rows must be returned only if the function returns data. 

The amount of time it takes the query to execute must be minimized. 

Which query should you use? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:


Q97. Topic 8) 

You create a disk-based table that contains the following script: 

You need to prevent duplicate values in the SKU field. 

Which five code segments should you use? 

To answer, move the appropriate code segments from the list of code segments to the 

answer area and arrange them in the correct order. 

Answer: 


Q98. You have a Microsoft SQL Azure database. You have the following stored procedure: 

You discover that the stored procedure periodically fails to update Person.Contact. 

You need to ensure that Person.Contact is always updated when UpdateContact executes. The solution must minimize the amount of time required for the stored procedure to execute and the number of locks held. 

What should you do? 

A. Add the following line of code to line 12: 

WITH (UPDLOCK) 

B. Add the following line of code to line 05: 

SET TRANSACTION ISOLATION LEVEL SERIALIZABLE 

C. Add the following line of code to line 08: 

WITH (UPDLOCK) 

D. Add the following line of code to line 05: 

SET TRANSACTION ISOLATION LEVEL SNAPSHOT 

Answer:

Explanation: * Overall, you should use UPDLOCK when you read a value that you plan to update later in the same transaction to prevent the value from changing. 

* UPDLOCK Specifies that update locks are to be taken and held until the transaction completes. UPDLOCK takes update locks for read operations only at the row-level or page-level. If UPDLOCK is combined with TABLOCK, or a table-level lock is taken for some other reason, an exclusive (X) lock will be taken instead. When UPDLOCK is specified, the READCOMMITTED and READCOMMITTEDLOCK isolation level hints are ignored. For example, if the isolation level of the session is set to SERIALIZABLE and a query specifies (UPDLOCK, READCOMMITTED), the READCOMMITTED hint is ignored and the transaction is run using the SERIALIZABLE isolation level. 


Q99. You have a database that is accessed by 300 concurrent users. 

You need to log all of the queries that become deadlocked. The solution must meet the following requirements: 

. Provide a representation of the deadlock in XML format. 

. Minimize the impact on the server. 

What should you create? 

A. A SQL Server Profiler trace 

B. A script that enables trace flags 

C. A SQL Server Agent job that retrieves information from the sys.dm_tran_active_transactions dynamic management views 

D. A SQL Server Agent job that retrieves information from the sys.dm_tran_session_transactions dynamic management views 

Answer:

Explanation: Analyze Deadlocks with SQL Server Profiler Use SQL Server Profiler to identify the cause of a deadlock. A deadlock occurs when there is a cyclic dependency between two or more threads, or processes, for some set of resources within SQL Server. Using SQL Server Profiler, you can create a trace that records, replays, and displays deadlock events for analysis. To trace deadlock events, add the Deadlock graph event class to a trace. This event class populates the TextData data column in the trace with XML data about the process and objects that are involved in the deadlock. SQL Server Profiler can extract the XML document to a deadlock XML (.xdl) file which you can view later in SQL Server Management Studio. 


Q100. You discover that the usp_GetOrdersAndItems stored procedure takes a long time to complete while usp_AddOrder or usp_AddXMLOrder run. 

You need to ensure that usp_GetOrdersAndItems completes as quickly as possible. 

What should you do? (Each correct answer presents part of the solution. Choose all that apply.) 

A. Set the isolation level of the usp_GetOrdersAndItems stored procedure to SERIALIZABLE. 

B. Execute the ALTER DATABASE Sales SET ALLOW_SNAPSHOT_ISOLATION ON statement. 

C. Set the isolation level of the usp_AddOrder stored procedure to SERIALIZABLE. 

D. Set the isolation level of the usp_GetOrdersAndItems stored procedure to SNAPSHOT. 

E. Set the isolation level of the usp_AddOrder stored procedure to SNAPSHOT. 

F. Execute the ALTER DATABASE Sales SET ALLOW_SNAPSHOT_ISOLATION OFF statement. 

Answer: B,D 


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