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Microsoft 70-457 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Implementing T-SQL Queries | - Query data by using SELECT statements
|
| Topic 2: Implementing Database Programming Objects | - Develop stored procedures and functions
|
| Topic 3: Implementing Data Storage | - Design and implement tables, indexes, and constraints
|
| Topic 4: Implementing Database Objects | - Create and modify database objects
|
Microsoft Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1 Sample Questions:
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. Record the LSN of the transaction log at 08:59 hours. Perform a transaction log backup at 08:59 hours.
- B. Record the LSN of the transaction log at 08:59 hours. Perform a transaction log backup at 17:01 hours.
- C. Create a marked transaction in the transaction log at 08:59 hours. Perform a transaction log backup at
08:59 hours. - D. Create a marked transaction in the transaction log at 08:59 hours. Perform a transaction log backup at
17:01 hours. - E. Perform a differential backup at 08:59 hours.
- F. Create a database snapshot at 08:59 hours.
Explanation: Only visible for DumpExam members. You can sign-up / login (it's free).
You create a table that has the StudentCode, SubjectCode, and Marks columns to record mid-year marks for students. The table has marks obtained by 50 students for various subjects. You need to ensure that the following requirements are met:
Students must be ranked based on their average marks.
If one or more students have the same average, the same rank must be given to these students.
Consecutive ranks must be skipped when the same rank is assigned.
Which Transact-SQL query should you use?
- A. SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANK() OVER(PARTITION BY SubjectCode ORDER BY Marks ASC) AS Rank
FROM StudentMarks) tmp
WHERE Rank = 1 - B. SELECT StudentCode as Code,
RANK() OVER(ORDER BY AVG (Marks) DESC) AS Value
FROM StudentMarks
GROUP BY StudentCode - C. SELECT StudentCode as Code,
DENSE_RANK() OVER(ORDER BY AVG (Marks) DESC) AS Value
FROM StudentMarks
GROUP BY StudentCode - D. SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANK() OVER(PARTITION BY SubjectCode ORDER BY Marks DESC) AS Rank
FROM StudentMarks) tmp
WHERE Rank = 1 - E. SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANK() OVER(PARTITION BY StudentCode ORDER BY Marks ASC) AS Rank
FROM StudentMarks) tmp
WHERE Rank = 1 - F. SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANXO OVER(PARTITION BY StudentCode ORDER BY Marks DESC) AS Rank
FROM StudentMarks) tmp
WHERE Rank = 1 - G. SELECT Id, Name, Marks,
DENSE_RANK() OVER(ORDER BY Marks DESC) AS Rank
FROM StudentMarks - H. SELECT StudentCode as Code,
NTILE(2) OVER(ORDER BY AVG (Marks) DESC) AS Value
FROM StudentMarks
GROUP BY StudentCode
Explanation: Only visible for DumpExam 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. * SQL Server that includes an application database configured to perform transactional replication
- 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. * SQL Server that includes an application database configured to perform snapshot replication
- D. * Two servers configured in different data centers * SQL Server Availability Group configured in Asynchronous-Commit Availability Mode
- E. * Two servers configured on the same subnet * SQL Server Availability Group configured in Synchronous-Commit Availability Mode
- F. * 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
- G. * Two servers configured in a Windows Failover Cluster in the same data center * SQL Server configured as a clustered instance
- H. * Two servers configured in different data centers * SQL Server Availability Group configured in Synchronous-Commit Availability Mode * One server configured as an Active Secondary
You administer a Microsoft SQL Server 2012 server that has a database named Contoso. The Contoso database has a table named EmployeeSalary in a schema named HumanResources. You need to create a script that writes audit events into the application log whenever data in the EmployeeSalary table is modified. Which 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:
Explanation:
--Burgos - YES (but with different's blocks of commands)
Reference: http://msdn.microsoft.com/en-us/library/cc280386.aspx Reference: http://msdn.microsoft.com/en-us/library/cc280448.aspx Reference: http://msdn.microsoft.com/en-us/library/cc280404.aspx
DRAG AND DROP You administer several Microsoft SQL Server 2012 servers. Your company has a number of offices across the world connected by using a wide area network (WAN). Connections between offices vary significantly in both bandwidth and reliability. You need to identify the correct replication method for each scenario. What should you do? (To answer, drag the appropriate replication method or methods to the correct location or locations in the answer area. Each replication method may be used once, more than once, or not at all.)
Select and Place:
Explanation:
Reference: http://msdn.microsoft.com/en-us/library/ms151198.aspx
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