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Q81. - (Topic 1)
You are developing an application that will transmit large amounts of data between a client computer and a server. You need to ensure the validity of the data by using a cryptographic hashing algorithm. Which algorithm should you use?
A. RSA
B. HMACSHA2S6
C. Aes
D. RNGCryptoServiceProvider
Answer: B
Q82. - (Topic 2)
You are creating a console application named App1.
App1 will validate user input for order entries.
You are developing the following code segment (line numbers are included for reference only):
You need to complete the code segment.
The solution must ensure that prices are positive and have two decimal places.
Which code should you insert at line 03?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: B
Explanation: * Regex.IsMatch Method (String, String)
Indicates whether the specified regular expression finds a match in the specified input string.
Syntax:
public static bool IsMatch(
string input,
string pattern
)
Q83. DRAG DROP - (Topic 1)
You are developing an application that will populate an extensive XML tree from a Microsoft SQL Server 2008 R2 database table named Contacts.
You are creating the XML tree. The solution must meet the following requirements: . Minimize memory requirements. . Maximize data processing speed. You open the database connection. You need to create the XML tree.
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:
Q84. - (Topic 2)
You are developing an application that includes a class named Customer and a generic list of customers. The following code segment declares the list of customers:
List<Customer> customersList = new List<Customer> () ;
You populate the customersList object with several hundred Customer objects.
The application must display the data for five Customer objects at a time.
You need to create a method that will return the correct number of Customer objects.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Q85. - (Topic 1)
You are developing code for a class named Account. The Account class includes the following method:
You need to ensure that overflow exceptions are thrown when there is an error. Which type of block should you use?
A. checked
B. try
C. using
D. unchecked
Answer: A
Q86. - (Topic 2)
You need to store the values in a collection.
The solution must meet the following requirements:
. The values must be stored in the order that they were added to the collection. . The values must be accessed in a first-in, first-out order.
Which type of collection should you use?
A. SortedList
B. Queue
C. ArrayList
D. Hashtable
Answer: B
Q87. DRAG DROP - (Topic 2)
You are developing a C# console application that outputs information to the screen. The following code segments implement the two classes responsible for making calls to the Console object:
When the application is run, the console output must be the following text:
Log started Base: Log continuing Finished
You need to ensure that the application outputs the correct text.
Which four lines of code should you use in sequence? (To answer, move the appropriate classes from the list of classes to the answer area and arrange them in the correct order.)
Answer:
Q88. HOTSPOT - (Topic 2)
You are developing the following classes named:
Class1
Class2
Class3
All of the classes will be part of a single assembly named Assembly.dll. Assembly.dll will be used by multiple applications.
All of the classes will implement the following interface, which is also part ofAssembly.dll:
public interface Interface1 { void Method1(decimal amount); void Method2(decimal amount); }
You need to ensure that the Method2 method for the Class3 class can be executed only when instances of the class are accessed through the Interface1 interface. The solution must ensure that calls to the Method1 method can be made either through the interface or through an instance of the class.
Which signature should you use for each method? (To answer, select the appropriate signature for each method in the answer area.)
Answer:
Q89. - (Topic 1)
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.)
A. Replace line 05 with the following code segment: protected get;
B. Replace line 06 with the following code segment: private set;
C. Replace line 03 with the following code segment: public string EmployeeType
D. Replace line 05 with the following code segment: private get;
E. Replace line 03 with the following code segment: protected string EmployeeType
F. Replace line 06 with the following code segment: protected set;
Answer: B,E
Q90. - (Topic 2)
You have the following code (line numbers are included for reference only):
You need to ensure that if an exception occurs, the exception will be logged. Which code should you insert at line 28?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Explanation: * XmlWriterTraceListener
Directs tracing or debugging output as XML-encoded data to a TextWriter or to a Stream,
such as a FileStream.