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Microsoft 70-457 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Work with Data | 28-33% | - Apply built-in functions and aggregate functions - Manage transactions and error handling - Implement subqueries and joins - Modify data using INSERT, UPDATE, DELETE - Query data using SELECT statements |
| Manage and Maintain Databases | 20-25% | - Implement security principles - Configure SQL Server instances - Monitor SQL Server activity - Implement high availability features - Manage backups and restores |
| Troubleshoot and Optimize Queries | 15-20% | - Optimize indexes and statistics - Use query hints and execution plans - Identify and resolve performance issues - Analyze execution plans |
| Create Database Objects | 27-32% | - Create functions and triggers - Create and modify views - Create stored procedures - Create and alter indexes - Design and implement tables |
Microsoft Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1 Sample Questions:
You are developing a database application by using Microsoft SQL Server 2012. You have a query that runs slower than expected. You need to capture execution plans that will include detailed information on missing indexes recommended by the query optimizer. What should you do?
- A. Include a SET TRANSACTION ISOLATION LEVEL SNAPSHOT statement before you run the query.
- B. Add a LOOP hint to the query.
- C. Enable the optimize for ad hoc workloads option.
- D. Include a SET TRANSACTION ISOLATION LEVEL SERIALIZABLE statement before you run the query.
- E. Add a FORCESEEK hint to the query.
- F. Include a SET STATISTICS PROFILE ON statement before you run the query.
- G. Add a FORCESCAN hint to the Attach query.
- H. Include a SET STATISTICS SHOWPLAN_XML ON statement before you run the query.
- I. Add a HASH hint to the query.
- J. Include a SET FORCEPLAN ON statement before you run the query.
- K. Add an INCLUDE clause to the index.
- L. Cover the unique clustered index with a columnstore index.
- M. Include a SET TRANSACTION ISOLATION LEVEL REPEATABLE READ statement before you run the query.
- N. Add a columnstore index to cover the query.
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You use Microsoft SQL Server 2012 database to develop a shopping cart application. You need to invoke a table-valued function for each row returned by a query. Which Transact-SQL operator should you use?
- A. PIVOT
- B. CROSS JOIN
- C. CROSS APPLY
- D. UNPIVOT
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You administer a Microsoft SQL Server 2012 failover cluster that contains two nodes named Node A and Node B.
A single instance of SQL Server is installed on the cluster. An additional node named Node C has been added to the existing cluster. You need to ensure that the SQL Server instance can use all nodes of the cluster. What should you do?
- A. Use Cluster Administrator to add a new Resource Group to Node B.
- B. Use Node A to install SQL Server on Node C.
- C. Run the Add Node to SQL Server Failover Cluster Wizard on Node
- D. Create a ConfigurationFile.ini file from Node B, and then run the AddNode command-line tool on Node
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You administer a Microsoft SQL Server 2012 instance named SQL2012 that hosts an OLTP database of 1 terabyte in size. The database is modified by users only from Monday through Friday from 09:00 hours to
17:00 hours. Users modify more than 30 percent of the data in the database during the week. Backups are performed as shown in the following schedule:
The Finance department plans to execute a batch process every Saturday at 09:00 hours. This batch process will take a maximum of 8 hours to complete. The batch process will update three tables that are 10 GB in size. The batch process will update these tables multiple times. When the batch process completes, the Finance department runs a report to find out whether the batch process has completed correctly. You need to ensure that if the Finance department disapproves the batch process, the batch operation can be rolled back in the minimum amount of time. What should you do on Saturday?
- A. Create a database snapshot at 08:59 hours.
- B. Record the LSN of the transaction log at 08:59 hours. Perform a transaction log backup at 08:59 hours.
- C. Create a marked transaction in the transaction log at 08:59 hours. Perform a transaction log backup at
17:01 hours. - D. Perform a differential backup at 08:59 hours.
- E. Record the LSN of the transaction log at 08:59 hours. Perform a transaction log backup at 17:01 hours.
- F. Create a marked transaction in the transaction log at 08:59 hours. Perform a transaction log backup at
08:59 hours.
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You administer a Microsoft SQL Server 2012 database that has Trustworthy set to On. You create a stored procedure that returns database-level information from Dynamic Management Views. You grant User1 access to execute the stored procedure. You need to ensure that the stored procedure returns the required information when User1 executes the stored procedure. You need to achieve this goal by granting the minimum permissions required. What should you do? (Each correct answer presents a complete solution. Choose all that apply.)
- A. Grant the db_owner role on the database to User1.
- B. Modify the stored procedure to include the EXECUTE AS OWNER statement. Grant VIEW SERVER STATE permissions to the owner of the stored procedure.
- C. Grant the sysadmin role on the database to User1.
- D. Create a SQL Server login that has VIEW SERVER STATE permissions. Modify the stored procedure to include the EXECUTE AS {newlogin} statement.
- E. Create a SQL Server login that has VIEW SERVER STATE permissions. Create an application role and a secured password for the role.
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