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70-483 PDF DEMO:
QUESTION NO: 1
You are developing a C# application that includes a class named Product. The following code segment defines the Product class:
You implement System.ComponentModel.DataAnnotations.IValidateableObject interface to provide a way to validate the Product object.
The Product object has the following requirements:
* The Id property must have a value greater than zero.
* The Name property must have a value other than empty or null.
You need to validate the Product object. Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: B
QUESTION NO: 2
You are debugging a 64-bit C# application.
Users report System.OutOfMemoryException exceptions. The system is attempting to use arrays larger than 2 GB in size.
You need to ensure that the application can use arrays larger than 2 GB.
What should you do?
A. Set the IMAGE_FILE_LARGE_ADDRESS_AWARE flag in the image header for the application executable file.
B. Add the /3GB switch to the boot.ini file for the operating system.
C. Set the value of the user-mode virtual address space setting for the operating system to MAX.
D. Set the value of the gcAllowVeryLargeObjects property to true in the application configuration file.
Answer: D
Explanation
On 64-bit platforms the gcAllowVeryLargeObjects enables arrays that are greater than 2 gigabytes
(GB) in total size.
Reference: <gcAllowVeryLargeObjects> Element
https://msdn.microsoft.com/en-us/library/hh285054(v=vs.110).aspx
QUESTION NO: 3
You are developing an application that contains a class named TheaterCustomer and a method named ProcessTheaterCustomer. The ProcessTheaterCustomer() method accepts a TheaterCustomer object as the input parameter.
You have the following requirements:
* Store the TheaterCustomer objects in a collection.
* Ensure that the ProcessTheaterCustomer() method processes the TheaterCustomer objects in the order in which they are placed into the collection.
You need to meet the requirements.
What should you do?
A. Create a System.Collections.Queue collection. Use the Enqueue() method to add TheaterCustomer objects to the collection. Use the Dequeue() method to pass the objects to the
ProcessTheaterCustomer() method.
B. Create a System.Collections.Stack collection. Use the Push() method to add TheaterCustomer objects to the collection, Use the Peek() method to pass the objects to the ProcessTheaterCustomer() method.
C. Create a System.Collections.SortedList collection. Use the Add() method to add TheaterCustomer objects to the collection. Use the Remove() method to pass the objects to the
ProcessTheaterCustomer() method.
D. Create a System.Collections.ArrayList collection. Use the Insert() method to add TheaterCustomer objects to the collection. Use the Remove() method to pass the objects to the
ProcessTheaterCustomer() method.
Answer: A
Explanation
The System.Collections.Queue collection represents a first-in, first-out collection of objects.
Reference: https://msdn.microsoft.com/en-us/library/system.collections.queue(v=vs.110).aspx
QUESTION NO: 4
You are developing an application that includes a class named Order. The application will store a collection of Order objects.
The collection must meet the following requirements:
* Internally store a key and a value for each collection item.
* Provide objects to iterators in ascending order based on the key.
* Ensure that item are accessible by zero-based index or by key.
You need to use a collection type that meets the requirements.
Which collection type should you use?
A. Queue
B. Array
C. SortedList
D. LinkedList
E. HashTable
Answer: C
Explanation
SortedList<TKey, TValue> - Represents a collection of key/value pairs that are sorted by key based on the associated IComparer<T> implementation.
http://msdn.microsoft.com/en-us/library/ms132319.aspx
QUESTION NO: 5
A public class named Message has a method named SendMessage() method is leaking memory.
A. Replace the try...catch block with a using statement.
B. Add a finally statement and implement the gc.collect() method.
C. Modify the Message class to use the IDisposable interface.
D. Remove the try...catch block and allow the errors to propagate.
Answer: B
Reference:
https://docs.microsoft.com/en-
us/dotnet/api/system.gc.collect?redirectedfrom=MSDN&view=netframework-4.7.
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Updated: May 28, 2022