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Q1. - (Topic 2)
You are creating a class library that will be used in a web application.
You need to ensure that the class library assembly is strongly named.
What should you do?
A. Use the gacutil.exe command-line tool.
B. Use the xsd.exe command-line tool.
C. Use the aspnet_regiis.exe command-line tool.
D. Use assembly attributes.
Answer: D
Explanation: The Windows Software Development Kit (SDK) provides several ways to sign an assembly with a strong name:
* Using the Assembly Linker (Al.exe) provided by the Windows SDK.
* Using assembly attributes to insert the strong name information in your code. You can use either the AssemblyKeyFileAttribute or the AssemblyKeyNameAttribute, depending on where the key file to be used is located.
* Using compiler options such /keyfile or /delaysign in C# and Visual Basic, or the
/KEYFILE or /DELAYSIGN linker option in C++. (For information on delay signing, see
Delay Signing an Assembly.)
Note:
* A strong name consists of the assembly's identity—its simple text name, version number, and culture information (if provided)—plus a public key and a digital signature. It is generated from an assembly file (the file that contains the assembly manifest, which in turn contains the names and hashes of all the files that make up the assembly), using the corresponding private key. Microsoft. Visual Studio. .NET and other development tools provided in the .NET Framework SDK can assign strong names to an assembly.
Assemblies with the same strong name are expected to be identical.
Q2. - (Topic 2)
You are developing an application that will use multiple asynchronous tasks to optimize performance.
You create three tasks by using the following code segment. (Line numbers are included for reference only.)
You need to ensure that the ProcessTasks() method waits until all three tasks complete before continuing.
Which code segment should you insert at line 09?
A. Task.WaitFor(3);
B. tasks.Yield();
C. tasks.WaitForCompletion();
D. Task.WaitAll(tasks);
Answer: D
Q3. - (Topic 2)
You are developing code for an application that retrieves information about Microsoft .NET Framework assemblies.
The following code segment is part of the application (line numbers are included for reference only):
You need to insert code at line 04. The code must load the assembly. Once the assembly is loaded, the code must be able to read the assembly metadata, but the code must be denied access from executing code from the assembly.
Which code segment should you insert at line 04?
A. Assembly.ReflectionOnlyLoadFrom(bytes);
B. Assembly.ReflectionOniyLoad(bytes);
C. Assembly.Load(bytes);
D. Assembly.LoadFrom(bytes);
Answer: C
Q4. - (Topic 1)
You are developing an application by using C#. The application includes the following code segment. (Line numbers are included for reference only.)
The DoWork() method must not throw any exceptions when converting the obj object to the IDataContainer interface or when accessing the Data property.
You need to meet the requirements. Which code segment should you insert at line 07?
A. var dataContainer = (IDataContainer)obj;
B. dynamic dataContainer = obj;
C. var dataContainer = obj is IDataContainer;
D. var dataContainer = obj as IDataContainer;
Answer: D
Explanation:
As - The as operator is like a cast operation. However, if the conversion isn't possible, as returns null instead of raising an exception. http://msdn.microsoft.com/en-us/library/cscsdfbt(v=vs.110).aspx
Q5. - (Topic 2)
You are developing an application that will read data from a text file and display the file contents.
You need to read data from the file, display it, and correctly release the file resources.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Q6. - (Topic 2)
You need to create a method that can be called by using a varying number of parameters.
What should you use?
A. Method overloading
B. Interface
C. Named parameters
D. Lambda expressions
Answer: A
Explanation:
Member overloading means creating two or more members on the same type that differ only in the number or type of parameters but have the same name. Overloading is one of the most important techniques for improving usability, productivity, and readability of reusable libraries. Overloading on the number of parameters makes it possible to provide simpler versions of constructors and methods. Overloading on the parameter type makes it possible to use the same member name for members performing identical operations on a selected set of different types.
Q7. - (Topic 1)
You are developing an application that uses the Microsoft ADO.NET Entity Framework to retrieve order information from a Microsoft SQL Server database. The application includes the following code. (Line numbers are included for reference only.)
The application must meet the following requirements:
. Return only orders that have an OrderDate value other than null.
. Return only orders that were placed in the year specified in the year parameter.
You need to ensure that the application meets the requirements. Which code segment should you insert at line 08?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: B
Q8. - (Topic 1)
You are developing an application that includes the following code segment. (Line numbers are included for reference only.)
The GetCustomers() method must meet the following requirements:
Connect to a Microsoft SQL Server database.
Populate Customer objects with data from the database.
Return an IEnumerable<Customer> collection that contains the populated
Customer objects.
You need to meet the requirements.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)
A. Insert the following code segment at line 17: while (sqlDataReader.GetValues())
B. Insert the following code segment at line 14: sqlConnection.Open();
C. Insert the following code segment at line 14: sqlConnection.BeginTransaction();
D. Insert the following code segment at line 17: while (sqlDataReader.Read())
E. Insert the following code segment at line 17: while (sqlDataReader.NextResult())
Answer: B,D
Explanation:
SqlConnection.Open - Opens a database connection with the property settings specified by the ConnectionString.
http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.open.aspx SqlDataReader.Read - Advances the SqlDataReader to the next record. http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqldatareader.read.aspx
Q9. - (Topic 2)
You are developing an application that generates code. The application includes the following code segment. (Line numbers are included for reference only.)
You need to ensure that code generated by the GenerateCode() method represents a class that can be accessed by all objects in its application domain.
Which two code segments can you insert at line 05 to achieve this goal? (Each correct answer presents a complete solution. Choose two.)
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A,C
Q10. HOTSPOT - (Topic 1)
You are reviewing the following code:
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Answer:
Q11. DRAG DROP - (Topic 2)
You have an application that uses paging. Each page displays 10 items from a list.
You need to display the third page. (Develop the solution by selecting and ordering the required code snippets. You may not need all of the code snippets.)
Answer:
Q12. - (Topic 2)
You are developing a game that allows players to collect from 0 through 1000 coins. You are creating a method that will be used in the game. The method includes the following code. (Line numbers are included for reference only.)
01 public string FormatCoins(string name, int coins)
02 {
04 }
The method must meet the following requirements:
Return a string that includes the player name and the number of coins. Display the number of coins without leading zeros if the number is 1 or greater. Display the number of coins as a single 0 if the number is 0.
You need to ensure that the method meets the requirements.
Which code segment should you insert at line 03?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
Q13. DRAG DROP - (Topic 1)
You are developing an application that implements a set of custom exception types. You declare the custom exception types by using the following code segments:
The application includes a function named DoWork that throws .NET Framework exceptions and custom exceptions.
The application contains only the following logging methods:
The application must meet the following requirements:
. When AdventureWorksValidationException exceptions are caught, log the information by using the static void Log (AdventureWorksValidationException ex) method.
. When AdventureWorksDbException or other AdventureWorksException exceptions are caught, log the information by using the static void I oq( AdventureWorksException ex) method.
You need to meet the requirements.
How should you complete the relevant code? (To answer, drag the appropriate code segments to the correct locations in the answer area. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)
Answer:
Q14. - (Topic 2)
You are evaluating a method that calculates loan interest- The application includes the following code segment. (Line numbers are included for reference only.)
When the loanTerm value is 3 and the loanAmount value is 9750, the loanRate must be set to 8.25 percent.
You need to adjust the loanRate value to meet the requirements.
What should you do?
A. Replace line 04 with the following code segment: decimal loanRate = 0.0325m;
B. Replace line 17 with the following code segment: interestAmount = loanAmount * 0.0825m * loanTerm;
C. Replace line 15 with the following code segment: loanRate = 0.0825m;
D. Replace line 07 with the following code segment: loanRate = 0.0825m;
Answer: C
Q15. - (Topic 2)
You are developing an application that includes the following code segment. (Line numbers are included for reference only.)
You need to ensure that the DoWork(Widget widget) method runs.
With which code segment should you replace line 24?
A. DoWork((Widget)o);
B. DoWork(new Widget(o));
C. DoWork(o is Widget);
D. DoWork((ItemBase)o);
Answer: A