You are developing an application. The application contains the following code segment (line numbers are included for reference only): When you run the code, you receive the following error message: "Cannot implicitly convert type 'object'' to 'int'. An explicit conversion exists (are you missing a cast?)." You need to ensure that the code can be compiled. Which code should you use to replace line 05?

Correct Answer: var2 = arrayl[0] as int;

You need to write a method that retrieves data from a Microsoft Access 2013 database. The method must meet the following requirements: ✑ Be read-only. ✑ Be able to use the data before the entire data set is retrieved. ✑ Minimize the amount of system overhead and the amount of memory usage. Which type of object should you use in the method?

Correct Answer: OleDbDataReader

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 OrderDate property or in a later year. You need to ensure that the application meets the requirements. Which code segment should you insert at line 08?

Correct Answer: Where order.OrderDate.Value != null && order.OrderDate.Value.Year >= year

You are developing an application. The application includes a method named ReadFile that reads data from a file. The ReadFile() method must meet the following requirements: ✑ It must not make changes to the data file. ✑ It must allow other processes to access the data file. ✑ It must not throw an exception if the application attempts to open a data file that does not exist. You need to implement the ReadFile() method. Which code segment should you use?

Correct Answer: var fs = File.ReadAllLines(Filename);

You are implementing a method named ProcessReports that performs a long-running task. The ProcessReports() method has the following method signature: public void ProcessReports(List values,CancellationTokenSource cts, CancellationToken ct) If the calling code requests cancellation, the method must perform the following actions: ✑ Cancel the long-running task. Set the task status to TaskStatus.Canceled. You need to ensure that the ProcessReports() method performs the required actions. Which code segment should you use in the method body?

Correct Answer: throw new AggregateException();

An application receives JSON data in the following format: The application includes the following code segment. (Line numbers are included for reference only.) You need to ensure that the ConvertToName() method returns the JSON input string as a Name object. Which code segment should you insert at line 10?

Correct Answer: Return ser.Deserialize(json);

You are developing an application that will be deployed to multiple computers. You set the assembly name. You need to create a unique identity for the application assembly. Which two assembly identity attributes should you include in the source code? (Each correct answer presents part of the solution. Choose two.)

Correct Answer: AssemblyCultureAttribute

You are developing an application. The application converts a Location object to a string by using a method named WriteObject. The WriteObject() method accepts two parameters, a Location object and an XmlObjectSerializer object. The application includes the following code. (Line numbers are included for reference only.) You need to serialize the Location object as a JSON object. Which code segment should you insert at line 20?

Correct Answer: New NetDataContractSenalizer()

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?

Correct Answer: dynamic dataContainer = obj;

You are writing the following method (line numbers are included for reference only): You need to ensure that CreateObject compiles successfully. What should you do?

Correct Answer: Insert the following code at line 02: where T : Object

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?

Correct Answer: DoWork((ItemBase)o);

You are developing an application that will parse a large amount of text. You need to parse the text into separate lines and minimize memory use while processing data. Which object type should you use?

Correct Answer: DataContractSerializer

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?

Correct Answer: Assembly.Load(bytes);

You are creating a class named Employee. The class exposes a string property named EmployeeType. The following code segment defines the Employee class. (Line numbers are included for reference only.) The EmployeeType property value must be accessed and modified only by code within the Employee class or within a class derived from the Employee class. You need to ensure that the implementation of the EmployeeType property meets the requirements. Which two actions should you perform? (Each correct answer represents part of the complete solution. Choose two.)

Correct Answer: Replace line 05 with the following code segment:protected get;

You are implementing a method named Calculate that performs conversions between value types and reference types. The following code segment implements the method. (Line numbers are included for reference only.) You need to ensure that the application does not throw exceptions on invalid conversions. Which code segment should you insert at line 04?

Correct Answer: int balance = (int) (float)amountRef;

You are creating a console application by using C#. You need to access the application assembly. Which code segment should you use?

Correct Answer: Assembly.Load();

You use the Task.Run() method to launch a long-running data processing operation. The data processing operation often fails in times of heavy network congestion. If the data processing operation fails, a second operation must clean up any results of the first operation. You need to ensure that the second operation is invoked only if the data processing operation throws an unhandled exception. What should you do?

Correct Answer: Examine the Task.Status property immediately after the call to the Task.Run() method.

You are developing an application by using C#. You have the following requirements: ✑ Support 32-bit and 64-bit system configurations. ✑ Include pre-processor directives that are specific to the system configuration. ✑ Deploy an application version that includes both system configurations to testers. ✑ Ensure that stack traces include accurate line numbers. You need to configure the project to avoid changing individual configuration settings every time you deploy the application to testers. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

Correct Answer: Create two application configurations based on the default Debug configuration.

You are developing a method named CreateCounters that will create performance counters for an application. The method includes the following code. (Line numbers are included for reference only.) You need to ensure that Counter1 is available for use in Windows Performance Monitor (PerfMon). Which code segment should you insert at line 16?

Correct Answer: CounterType = PerformanceCounterType.SampleBase

You are developing an assembly that will be used by multiple applications. You need to install the assembly in the Global Assembly Cache (GAC). Which two actions can you perform to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

Correct Answer: Use the Assembly Registration tool (regasm.exe) to register the assembly and to copy the assembly to the GAC.

You are debugging an application that calculates loan interest. The application includes the following code. (Line numbers are included for reference only.) You need to ensure that the debugger breaks execution within the CalculateInterest() method when the loanAmount variable is less than or equal to zero in all builds of the application. What should you do?

Correct Answer: Insert the following code segment at line 03:Trace.Assert(loanAmount > 0);

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MCSD Programming in C

Program in C for professional application development.

4.8★★★★★(159 ratings)

16,667 studentsIntermediate

Develop a strong foundation in C programming concepts such as syntax, object-oriented design, and debugging. The exam helps you build the coding skills needed for software development and problem solving. This certification is useful for aspiring developers who want practical programming fluency. It supports progression into more advanced application development and software engineering roles.

What you'll learn

Write C code- Apply OOP principles- Debug applications- Manage program flow- Work with data structures

70-483

Lectures1

Quizzes0

Duration30 week

Students16,667

$20.00

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