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Microsoft 70-457 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Troubleshoot and Optimize Queries | 15-20% | - Identify and resolve performance issues - Optimize indexes and statistics - Use query hints and execution plans - Analyze execution plans |
| Manage and Maintain Databases | 20-25% | - Implement security principles - Configure SQL Server instances - Implement high availability features - Manage backups and restores - Monitor SQL Server activity |
| Work with Data | 28-33% | - Implement subqueries and joins - Query data using SELECT statements - Manage transactions and error handling - Apply built-in functions and aggregate functions - Modify data using INSERT, UPDATE, DELETE |
| Create Database Objects | 27-32% | - Create and modify views - Create stored procedures - Create functions and triggers - 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 use Microsoft SQL Server 2012 to develop a database that has two tables named Div1Cust and Div2Cust. Each table has columns named DivisionID and CustomerId . None of the rows in Div1Cust exist in Div2Cust. You need to write a query that meets the following requirements:
The rows in Div1Cust must be combined with the rows in Div2Cust.
The result set must have columns named Division and Customer.
Duplicates must be retained.
Which three Transact-SQL statements should you use? (To answer, move the appropriate statements from the list of statements to the answer area and arrange them in the correct order.)
Build List and Reorder:
Correct Answer:
Explanation:
--Burgos - NO
Reference: http://msdn.microsoft.com/en-us/library/ms180026.aspx Reference: http://msdn.microsoft.com/en-us/library/ms188055.aspx
You create an availability group named HaContoso that has replicas named Server01/HA, Server02/HA, and Server03/HA. Currently, Server01l/HA is the primary replica. You need to ensure that the following requirements are met:
Backup operations occur on Server02/HA.
If Server02/HA is unavailable, backup operations occur on Server03/HA.
Backup operations do not occur on Server01/HA.
How should you configure HaContoso?
- A. Set the exclude replica of Server01/HA to true.
Set the backup priority of Server02/HA to 10.
Set the backup priority of Server03/HA to 20. - B. Set the backup preference of HaContoso to Secondary only.
Set the backup priority of Server02/HA to 10.
Set the backup priority of Server03/HA to 20. - C. Set the backup preference of HaContoso to Prefer Secondary.
Set the backup priority of Server02/HA to 20.
Set the backup priority of Server03/HA to 10. - D. Set the backup preference of HaContoso to Secondary only.
Set the backup priority of Server02/HA to 20.
Set the backup priority of Server03/HA to 10.
Correct Answer: D 🗳️
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You administer a Microsoft SQL Server 2012 server that hosts a transactional database and a reporting database. The transactional database is updated through a web application and is operational throughout the day. The reporting database is only updated from the transactional database. The recovery model and backup schedule are configured as shown in the following table: At 16:20 hours, you discover that pages 17, 137, and 205 on one of the database files are corrupted on the transactional database. You need to ensure that the transactional database is restored. You also need to ensure that data loss is minimal. What should you do?
- A. Perform a partial restore.
- B. Restore the latest full backup.
- C. Restore the latest full backup, and restore the latest differential backup. Then, restore the latest log backup.
- D. Restore the latest full backup. Then, restore each differential backup taken before the time of failure from the most recent full backup.
- E. Perform a page restore.
- F. Restore the latest full backup. Then, restore the latest differential backup.
- G. Perform a point-in-time restore.
- H. Restore the latest full backup, and restore the latest differential backup. Then, restore each log backup taken before the time of failure from the most recent differential backup.
Correct Answer: E 🗳️
Explanation: Only visible for PassSureExam members. You can sign-up / login (it's free).
You use Microsoft SQL Server 2012 to create a stored procedure as shown in the following code segment. (Line numbers are included for reference only.)
The procedure can be called within other transactions. You need to ensure that when the DELETE statement from the HumanResourcesJobCandidate table succeeds, the modification is retained even if the insert into the Audit.Log table fails. Which code segment should you add to line 14?
- A. IF (XACT_STATE ( ) ) = 1
- B. IF (XACT_STATE ( ) ) = 0
- C. IF @@TRANCOUNT = 0
- D. IF @@TRANCOUNT = 1
Correct Answer: A 🗳️
Explanation: Only visible for PassSureExam members. You can sign-up / login (it's free).
You administer all the deployments of Microsoft SQL Server 2012 in your company. You need to ensure that an OLTP database that uses a storage area network (SAN) remains available if any of the servers fail. You also need to minimize the amount of storage used by the database. Which configuration should you use?
- A. * Two servers configured in a Windows Failover Cluster in the same data center * SQL Server configured as a clustered instance
- B. * Two servers configured in the same data center * SQL Server Availability Group configured in Asynchronous-Commit Availability Mode * One server configured as an Active Secondary
- C. * Two servers configured in different data centers * SQL Server Availability Group configured in Synchronous-Commit Availability Mode * One server configured as an Active Secondary
- D. * Two servers configured in different data centers * SQL Server Availability Group configured in Asynchronous-Commit Availability Mode
- E. * Two servers configured in the same data center * A primary server configured to perform log-shipping every 10 minutes * A backup server configured as a warm standby
- F. * Two servers configured on the same subnet * SQL Server Availability Group configured in Synchronous-Commit Availability Mode
- G. * SQL Server that includes an application database configured to perform transactional replication
- H. * SQL Server that includes an application database configured to perform snapshot replication
Correct Answer: A 🗳️
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