You are a database developer of a Microsoft SQL Server 2012 database. You are designing a table that will store Customer data from different sources. The table will include a column that contains the CustomerID from the source system and a column that contains the SourceID. A sample of this data is as shown in the following table.

You need to ensure that the table has no duplicate CustomerID within a SourceID. You also need to ensure that the data in the table is in the order of SourceID and then CustomerID. Which Transact- SQL statement should you use?

• A. CREATE TABLE Customer
  (SourceID int NOT NULL PRIMARY KEY CLUSTERED,
  CustomerID int NOT NULL PRIMARY KEY CLUSTERED,
  CustomerName varchar(255) NOT NULL);
• B. CREATE TABLE Customer (SourceID int NOT NULL, CustomerID int NOT NULL, CustomerName varchar(255) NOT NULL, CONSTRAINT UQ_Customer UNIQUE CLUSTERED (SourceID, CustomerID));
• C. CREATE TABLE Customer (SourceID int NOT NULL PRIMARY KEY CLUSTERED, CustomerID int NOT NULL UNIQUE, CustomerName varchar(255) NOT NULL);
• D. CREATE TABLE Customer (SourceID int NOT NULL, CustomerID int NOT NULL PRIMARY KEY CLUSTERED, CustomerName varchar(255) NOT NULL);

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,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
• C. SELECT Id, Name, Marks,
  DENSE_RANK() OVER(ORDER BY Marks DESC) AS Rank
  FROM StudentMarks
• D. 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
• E. SELECT StudentCode as Code,
  DENSE_RANK() OVER(ORDER BY AVG (Marks) DESC) AS Value
  FROM StudentMarks
  GROUP BY StudentCode
• F. SELECT StudentCode as Code,
  NTILE(2) OVER(ORDER BY AVG (Marks) DESC) AS Value
  FROM StudentMarks
  GROUP BY StudentCode
• G. SELECT StudentCode as Code,
  RANK() OVER(ORDER BY AVG (Marks) DESC) AS Value
  FROM StudentMarks
  GROUP BY StudentCode
• H. 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

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 APPLY
• B. CROSS JOIN
• C. PIVOT
• D. UNPIVOT

You administer a Microsoft SQL Server 2012 database. All database traffic to the SQL Server must be encrypted by using secure socket layer (SSL) certificates or the connection must be refused. Network
administrators have deployed server certificates to the Windows store of all Windows servers on the
network from a trusted Certificate Authority. This is the only Certificate Authority allowed to distribute
certificates on the network.
You enable the Force Encryption flag for the MSSQLServer protocols, but client computers are unable to
connect. They receive the following error message:
"A connection was successfully established with the server, but then an error occurred during the pre-login
handshake, (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not
trusted.) (Microsoft SQL Server)"
You notice the following entry in the SQL Server log:
"A self-generated certificate was successfully loaded for encryption."
You need to configure SQL Server to encrypt all client traffic across the network. You also need to ensure
that client computers are able to connect to the server by using a trusted certificate. Which three actions
should you perform in sequence? (To answer, move the appropriate actions from the list of actions to the
answer area and arrange them in the correct order.)
Build List and Reorder: