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2021 Feb microsoft virtual academy 70-483:
Q41. DRAG DROP - (Topic 1)
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.
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:
Q42. - (Topic 2)
You are modifying an existing application.
The application includes a Loan class and a Customer class. The following code segment defines the classes.
You populate a collection named customer-Collection with Customer and Loan objects by using the following code segment:
You create a largeCustomerLoans collection to store the Loan objects by using the following code segment:
Collection<Loan> largeCustomerLoans = new Collection<Loan>();
All loans with an Amount value greater than or equal to 4000 must be tracked.
You need to populate the largeCustomerLoans collection with Loan objects.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
Explanation: Must add to the largeCustomerLoans collection, not the customerLoanCollection.
We iterate through each customer in customerCollection and check each loan belonging to this customer.
Q43. DRAG DROP - (Topic 1)
You have a method named GetCustomerIDs that returns a list of integers. Each entry in the list represents a customer ID that is retrieved from a list named Customers. The Customers list contains 1,000 rows.
Another developer creates a method named ValidateCustomer that accepts an integer parameter and returns a Boolean value. ValidateCustomer returns true if the integer provided references a valid customer. ValidateCustomer can take up to one second to run.
You need to create a method that returns a list of valid customer IDs. The code must execute in the shortest amount of time.
What should you do? (Develop the solution by selecting and ordering the required code snippets. You may not need all of the code snippets.)
Answer:
Q44. HOTSPOT - (Topic 2)
You have the following code (line numbers are included for reference only):
To answer, complete each statement according to the information presented in the code.
Answer:
Q45. 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 ContosoValidationException exceptions are caught, log the information by using the static void Log (ContosoValidationException ex) method. . When ContosoDbException or other ContosoException exceptions are caught, log the information by using the static void Log(ContosoException 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:
Update 70-483:
Q46. HOTSPOT - (Topic 1)
You are developing an application in C#.
The application will display the temperature and the time at which the temperature was recorded. You have the following method (line numbers are included for reference only):
You need to ensure that the message displayed in the lblMessage object shows the time formatted according to the following requirements:
The time must be formatted as hour:minute AM/PM, for example 2:00 PM.
The date must be formatted as month/day/year, for example 04/21/2013.
The temperature must be formatted to have two decimal places, for example 23-
45.
Which code should you insert at line 04? (To answer, select the appropriate options in the answer area.)
Answer:
Q47. - (Topic 2)
You write the following method (line numbers are included for reference only):
You need to ensure that the method extracts a list of URLs that match the following pattern: @http://(www\.)?([^\.]+)\.com;
Which code should you insert at line 07?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Explanation: The MatchCollection.GetEnumerator method returns an enumerator that
iterates through a collection.
Note:
The MatchCollection Class represents the set of successful matches found by iteratively
applying a regular expression pattern to the input string.
Reference: MatchCollection.GetEnumerator Method
https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.matchcollection.getenumerator(v=vs.110).aspx
Q48. - (Topic 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.
Q49. - (Topic 2)
You are developing an application in C#.
The application uses exception handling on a method that is used to execute mathematical calculations by using integer numbers.
You write the following catch blocks for the method (line numbers are included for reference only):
You need to add the following code to the method:
At which line should you insert the code?
A. 01
B. 03
C. 05
D. 07
Answer: A
Q50. - (Topic 1)
You are developing an application by using C#.
The application includes an object that performs a long running process.
You need to ensure that the garbage collector does not release the object's resources until
the process completes.
Which garbage collector method should you use?
A. ReRegisterForFinalize()
B. SuppressFinalize()
C. Collect()
D. WaitForFullGCApproach()
Answer: B