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Microsoft 070-457 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Manage and Maintain Databases | - Create and modify databases - Monitor and optimize database performance - Implement backup and restore strategies |
| Topic 2: Configure and Deploy SQL Server 2012 | - Configure SQL Server instances and services - Install and configure SQL Server components - Configure storage and database files |
| Topic 3: Security and Data Access | - Configure authentication and authorization - Manage SQL Server security principals - Implement data encryption and auditing |
| Topic 4: Data Management and Querying | - Implement T-SQL queries and scripts - Work with indexes and execution plans - Manage data integrity and constraints |
| Topic 5: Monitoring and Troubleshooting | - Monitor SQL Server performance - Troubleshoot database issues - Use SQL Server tools for diagnostics |
Microsoft Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1 Sample Questions:
1. You use Microsoft SQL Server 2012 database to develop a shopping cart application. You need to rotate the unique values of the ProductName field of a table-valued expression into multiple columns in the output. Which Transact-SQL operator should you use?
A) CROSS JOIN
B) UNPIVOT
C) PIVOT
D) CROSS APPLY
2. You administer a Microsoft SQL Server 2012 instance. You need to stop a blocking process that has an SPID of 64 without stopping other processes. What should you do?
A) Execute the following Transact-SQL statement:
ALTER SESSION KILL '64'
B) Execute the following Transact-SQL statement:
EXECUTE sp_KillSPID 64
C) Restart the SQL Server service.
D) Execute the following Transact-SQL statement:
KILL 64
3. You generate a daily report according to the following query:
You need to improve the performance of the query. What should you do?
A) Drop the UDF and rewrite the report query as follows:
WITH cte(CustomerID, LastOrderDate) AS ( SELECT CustomerID, MAX(OrderDate) AS [LastOrderDate] FROM Sales.SalesOrder GROUP BY CustomerID
)
SELECT c.CustomerName
FROM cte
INNER JOIN Sales.Customer c
ON cte.CustomerID = c.CustomerID
WHERE cte.LastOrderDate < DATEADD(DAY, -90, GETDATE())
B) Rewrite the report query as follows:
SELECT c.CustomerName
FROM Sales.Customer c
WHERE NOT EXISTS (SELECT OrderDate FROM Sales.ufnGetRecentOrders(c.
CustomerID, 90))
Rewrite the UDF as follows:
CREATE FUNCTION Sales.ufnGetRecentOrders(@CustomerID int, @MaxAge datetime)
RETURNS TABLE AS RETURN (
SELECT OrderDate
FROM Sales.SalesOrder
WHERE s.CustomerID = @CustomerID
AND s.OrderDate > DATEADD(DAY, -@MaxAge, GETDATE())
C) Drop the UDF and rewrite the report query as follows:
SELECT c.CustomerName
FROM Sales.Customer c
WHERE NOT EXISTS (
SELECT s.OrderDate
FROM Sales.SalesOrder
WHERE s.OrderDate > DATEADD(DAY, -90, GETDATE())
AND s.CustomerID = c.CustomerID)
D) Drop the UDF and rewrite the report query as follows:
SELECT DISTINCT c.CustomerName
FROM Sales.Customer c
INNER JOIN Sales.SalesOrder s
ON c.CustomerID = s.CustomerID
WHERE s.OrderDate < DATEADD(DAY, -90, GETDATE())
4. You administer a Microsoft SQL Server 2012 instance. The instance contains a database that supports a retail sales application. The application generates hundreds of transactions per second and is online 24 hours per day and 7 days per week. You plan to define a backup strategy for the database. You need to ensure that the following requirements are met:
No more than 5 minutes worth of transactions are lost.
Data can be recovered by using the minimum amount of administrative effort.
What should you do? Choose all that apply.
A) Create a LOG backup every 5 minutes.
B) Create a DIFFERENTIAL database backup every 4 hours.
C) Create a FULL database backup every 24 hours.
D) Create a DIFFERENTIAL database backup every 24 hours.
E) Configure the database to use the SIMPLE recovery model.
F) Configure the database to use the FULL recovery model.
5. You are a database developer for an application hosted on a Microsoft SQL Server 2012 server. The database contains two tables that have the following definitions:
Global customers place orders from several countries. You need to view the country from which each customer has placed the most orders. Which Transact-SQL query do you use?
A) SELECT c.CustomerID, c.CustomerName, o.ShippingCountry FROM Customer c INNER JOIN
(SELECT CustomerID, ShippingCountry,
RANK() OVER (PARTITION BY CustomerID
ORDER BY OrderAmount DESC) AS Rnk
FROM Orders
GROUP BY CustomerID, ShippingCountry) AS o
ON c.CustomerID = o.CustomerID
WHERE o.Rnk = 1
B) SELECT c.CustomerID, c.CustomerName, o.ShippingCountry FROM Customer c INNER JOIN
(SELECT CustomerID, ShippingCountry,
RANK() OVER (PARTITION BY CustomerID
ORDER BY COUNT(OrderAmount) DESC) AS Rnk
FROM Orders
GROUP BY CustomerID, ShippingCountry) AS o
ON c.CustomerID = o.CustomerID
WHERE o.Rnk = 1
C) SELECT c.CustomerID, c.CustomerName, o.ShippingCountry FROM Customer c INNER JOIN
(SELECT CustomerID, ShippingCountry,
COUNT(OrderAmount) DESC) AS OrderAmount
FROM Orders
GROUP BY CustomerID, ShippingCountry) AS o
ON c.CustomerID = o.CustomerID
ORDER BY OrderAmount DESC
D) SELECT c.CustomerID, c.CustomerName, o.ShippingCountry FROM (SELECT c.CustomerID, c.CustomerName, o.ShippingCountry, RANK() OVER (PARTITION BY CustomerID
ORDER BY COUNT(o.OrderAmount) ASC) AS Rnk
FROM Customer c
INNER JOIN Orders o
ON c.CustomerID = o.CustomerID
GROUP BY c.CustomerID, c.CustomerName, o.ShippingCountry) cs
WHERE Rnk = 1
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: D | Question # 3 Answer: A | Question # 4 Answer: A,B,C,F | Question # 5 Answer: B |







