70-483 Exam
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Q61. - (Topic 2)
You are developing a game that allows players to collect from 0 through 1000 coins. You are creating a method that will be used in the game. The method includes the following code. (Line numbers are included for reference only.)
01 public string FormatCoins(string name, int coins)
02 {
04 }
The method must meet the following requirements:
Return a string that includes the player name and the number of coins. Display the number of coins without leading zeros if the number is 1 or greater. Display the number of coins as a single 0 if the number is 0.
You need to ensure that the method meets the requirements.
Which code segment should you insert at line 03?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
Q62. DRAG DROP - (Topic 2)
You are developing a class named Temperature.
You need to ensure that collections of Temperature objects are sortable.
You have the following code:
Which code segments should you include in Target 1, Target 2 and Target 3 to complete the code? (To answer, drag the appropriate code segments to the correct targets 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:
Q63. - (Topic 1)
You are developing an application that uses structured exception handling. The application includes a class named Logger. The Logger class implements a method named Log by using the following code segment:
public static void Log(Exception ex) { }
You have the following requirements:
. Log all exceptions by using the Log() method of the Logger class.
. Rethrow the original exception, including the entire exception stack.
You need to meet the requirements. Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
Q64. - (Topic 1)
You are developing an application. The application includes classes named Employee and Person and an interface named IPerson.
The Employee class must meet the following requirements:
. It must either inherit from the Person class or implement the IPerson interface. . It must be inheritable by other classes in the application.
You need to ensure that the Employee class meets the requirements.
Which two code segments can you use to achieve this goal? (Each correct answer presents a complete solution. Choose two.)
A. Option A
B. Option B
C. Option C
D. Option D
Answer: B,D
Explanation:
Sealed - When applied to a class, the sealed modifier prevents other classes from inheriting from it. http://msdn.microsoft.com/en-us/library/88c54tsw(v=vs.110).aspx
Q65. - (Topic 2)
You are developing an assembly.
You plan to sign the assembly when the assembly is developed.
You need to reserve space in the assembly for the signature.
What should you do?
A. Run the Assembly Linker tool from the Windows Software Development Kit (Windows SDK).
B. Run the Strong Name tool from the Windows Software Development Kit (Windows SDK).
C. Add the AssemblySignatureKeyAttribute attribute the assembly.
D. Add the AssemblyDelaySignAttribute attribute to the assembly.
Answer: D
Q66. - (Topic 2)
You are developing a C# application. The application references and calls a RESTful web service named EmployeeService. The EmployeeService web service includes a method named GetEmployee, which accepts an employee ID as a parameter. The web service returns the following JSON data from the method.
{"Id":1,"Name":"David Jones">
The following code segment invokes the service and stores the result:
You need to convert the returned JSON data to an Employee object for use in the application.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
Q67. - (Topic 2)
You develop an application by using C#. The application counts the number of times a specific word appears within a set of text files. The application includes the following code. (Line numbers are included for reference only.)
You have the following requirements:
. Populate the _wordCounts object with a list of words and the number of occurrences of each word. . Ensure that updates to the ConcurrentDictionary object can happen in parallel.
You need to complete the relevant code.
Which code segment should you insert at line 23?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Q68. - (Topic 1)
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. LinkedList
B. Queue
C. Array
D. HashTable
E. SortedList
Answer: E
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
Q69. - (Topic 1)
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 throw an InvalidCastException exception if the obj object is not of type IDataContainer when accessing the Data property.
You need to meet the requirements. Which code segment should you insert at line 07?
A. var dataContainer = (IDataContainer) obj;
B. var dataContainer = obj as IDataContainer;
C. var dataContainer = obj is IDataContainer;
D. dynamic dataContainer = obj;
Answer: A
Explanation:
http://msdn.microsoft.com/en-us/library/ms173105.aspx
Q70. - (Topic 1)
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?
A. var fs = File.Open(Filename, FileMode.OpenOrCreate, FileAccess.Read, FileShare.ReadWrite);
B. var fs = File.Open(Filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
C. var fs = File.Open(Filename, FileMode.OpenOrCreate, FileAccess.Read, FileShare.Write);
D. var fs = File.ReadAllLines(Filename);
E. var fs = File.ReadAllBytes(Filename);
Answer: A
Explanation:
FileMode.OpenOrCreate - Specifies that the operating system should open a file if it exists; otherwise, a new file should be created. If the file is opened with FileAccess.Read, FileIOPermissionAccess.Read permission is required. If the file access is FileAccess.Write, FileIOPermissionAccess.Write permission is required. If the file is opened with FileAccess.ReadWrite, both FileIOPermissionAccess.Read and FileIOPermissionAccess.Write permissions are required.
http://msdn.microsoft.com/en-us/library/system.io.filemode.aspx
FileShare.ReadWrite - Allows subsequent opening of the file for reading or writing.If this flag is not specified, any request to open the file for reading or writing (by this process or another process) will fail until the file is closed.However, even if this flag is specified, additional permissions might still be needed to access the file. http://msdn.microsoft.com/pl-pl/library/system.io.fileshare.aspx