70-483 | Microsoft 70-483 Exam Questions and Answers 2021
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Microsoft 70-483 Free Dumps Questions Online, Read and Test Now.
NEW QUESTION 1
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?
- A. Insert the following code at line 02: where T : new()
- B. Replace line 01 with the following code: public void CreateObject<T>()
- C. Replace line 01 with the following code: public Object CreateObject<T>()
- D. Insert the following code at line 02: where T : Object
Answer: A
Explanation: You must require default/empty constructor to successfully call T obj = new T();
NEW QUESTION 2
You have the following code. (Line numbers are included for reference only.)
When you execute the code, you get an exception.
You need to ensure that B_Products contain all of the products that start with the letter “B”. What should you do?
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: D
Explanation: Simply select the product items.
NEW QUESTION 3
You have the following code (line numbers are included for reference only):
You need to identify the missing line of code at line 15. Which line of code should you identify?
- A. using (fooSqlConn.BeginTransaction())
- B. while (fooSqlReader.Read())
- C. while (fooSqlReader.NextResult())
- D. while (fooSqlReader.GetBoolean(0))
Answer: B
Explanation: The SqlDataReader.Read method advances the SqlDataReader to the next record. Example:
SqlCommand command =
new SqlCommand(queryString, connection); connection.Open();
SqlDataReader reader = command.ExecuteReader();
// Call Read before accessing data. while (reader.Read())
{
ReadSingleRow((IDataRecord)reader);
}
// Call Close when done reading. reader.Close();
}
Reference: SqlDataReader.Read Method ()
https://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqldatareader.read(v=vs.110).aspx
NEW QUESTION 4
A public class named Message has a method named SendMessage. The SendMessage() method is leaking memory.
- A. Add a finally statement and implement the gc.collect() method.
- B. Modify the Message class to use the IDisposable interface.
- C. Remove the try…catch block and allow the errors to propagate.
- D. Replace the try…catch block with a using statement.
Answer: A
Explanation: Reference: https://docs.microsoft.com/enus/ dotnet/api/system.gc.collect?redirectedfrom=MSDN&view=netframework- 4.7.2#System_GC_Collect
NEW QUESTION 5
You are developing an application that will process orders. The debug and release versions of the application will display different logo images.
You need to ensure that the correct image path is set based on the build configuration. Which code segment should you use?
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: C
Explanation: There is no such constraint (unless you define one explicitly) RELEASE. http://stackoverflow.com/questions/507704/will-if-release-work-like-if-debug-does-in-c
NEW QUESTION 6
You have the following code.
You need to remove all of the data from the myData list. Which code should you use?
- A. for (int i = 0; i <= myData.Count; i++) myData.RemoveAt(i);
- B. while (myData.Count ! = 0) myData.RemoveAt(0);
- C. foreach(string currentString in myData) myData.Remove(currentString);
- D. for (int i = 0; i <= myData.Count; i++) myData.RemoveAt(0);
Answer: C
NEW QUESTION 7
DRAG DROP
You are developing an application that includes a class named Customer.
The application will output the Customer class as a structured XML document by using the following code segment:
You need to ensure that the Customer class will serialize to XML. You have the following code:
Which code segments should you include in Target 1, Target 2, Target 3 and Target 4 to complete the code? To answer, drag the appropriate code segments to the correct targets. 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:
Explanation:
NEW QUESTION 8
You are developing an application that includes methods named ConvertAmount and TransferFunds. You need to ensure that the precision and range of the value in the amount variable is not lost when the TransferFunds() method is called.
Which code segment should you use?
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: A
Explanation: The double keyword signifies a simple type that stores 64-bit floating-point values. The float keyword signifies a simple type that stores 32-bit floating-point values. Reference: double (C# Reference)
NEW QUESTION 9
DRAG DROP
You are developing a custom collection named LoanCollection for a class named Loan class.
You need to ensure that you can process each Loan object in the LoanCollection collection by using a foreach loop.
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:
Explanation:
NEW QUESTION 10
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?
- A. New DataContractSerializer(typeof(Location))
- B. New XmlSerializer(typeof(Location))
- C. New NetDataContractSenalizer()
- D. New DataContractJsonSerializer(typeof(Location))
Answer: D
Explanation: The code is using [DataContract] attribute here so need to use DataContractSerializer class.
The DataContractJsonSerializer class serializes objects to the JavaScript Object Notation (JSON) and deserializes JSON data to objects.
Use the DataContractJsonSerializer class to serialize instances of a type into a JSON document and to deserialize a JSON document into an instance of a type.
NEW QUESTION 11
DRAG DROP
You need to write code that will display value1, and then value2 in the console. You write the following code:
How should you complete the code? To answer, drag the appropriate code elements to the correct targets. Each code element 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.
NOTE: Each correct selection is worth one point.
Answer:
Explanation: Target 1: string
Target 2: in
Target 3: Split
Target 4: ";"
NEW QUESTION 12
DRAG DROP
You are developing an application that will include a method named GetData. The GetData() method will retrieve several lines of data from a web service by using a System.IO.StreamReader object. You have the following requirements:
The GetData() method must return a string value that contains the first line of the response from the web service.
The application must remain responsive while the GetData() method runs. You need to implement the GetData() method.
How should you complete the relevant code? (To answer, drag the appropriate objects to the correct locations in the answer area. Each object 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:
Explanation: Box 1. async
Box 2. await
Box 3. ReadLineAsync(); Incorrect:
Not Box 3: ReadToEndAsync() is not correct since only the first line of the response is required.
NEW QUESTION 13
You are creating an application that manages information about zoo animals. The application includes a class named Animal and a method named Save.
The Save() method must be strongly typed. It must allow only types inherited from the Animal class that uses a constructor that accepts no parameters.
You need to implement the Save() method. Which code segment should you use?
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: C
Explanation: The condition new() ensures the empty/default constructor and must be the last condition.
When you define a generic class, you can apply restrictions to the kinds of types that client code can use for type arguments when it instantiates your class. If client code tries to instantiate your class by
using a type that is not allowed by a constraint, the result is a compile-time error. These restrictions are called constraints. Constraints are specified by using the where contextual keyword. http://msdn.microsoft.com/en-us/library/d5x73970.aspx
NEW QUESTION 14
You have the following code:
You need to retrieve all of the numbers from the items variable that are greater than 80. Which code should you use?
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: A
NEW QUESTION 15
You are developing a C# application named Application1 by using Microsoft Visual Studio 2021. You plan to compare the memory usage between different builds of Application1.
You need to record the memory usage of each build. What should you use from Visual Studio?
- A. IntelliTrace
- B. Memory Usage from Performance Profiler
- C. Performance Wizard from Performance Profiler
- D. Code Analysis
Answer: B
NEW QUESTION 16
You are developing a C# application. The application includes the following code segment, (Line numbers are included for reference only.)
The application fails at line 17 with the following error message: "An item with the same key has already been added."
You need to resolve the error.
Which code segment should you insert at line 16?
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: A
Explanation: The dictionary<TKey,TValue>.ContainsKey method (TKey) determines whether the Dictionary<TKey,TValue> contains the specified key.
Reference: Dictionary<TKey, TValue>.ContainsKey Method (TKey) https://msdn.microsoft.com/en-us/library/kw5aaea4(v=vs.110).aspx
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