MCPDMCPD(70-536)章节练习(2018.07.26)

多项选择题
You work as an application developer at Certkiller .com. You are in the process of creating an application for Certkiller .com’s Human Resources department that tracks employee benefits. You have to store current employee data without recompiling the application. You elect to store this employee data as a custom section in the application configuration file. The relevant portion of the application configuration file is shown in the following exhibit： You want to use the .NET 2.0 Configuration API to access the custom section. You need to ensure that programmatic access of the EmployeeSection element is enabled. What should you do？（）
A. Create a custom section handler class that inherits the ConfigurationSection interface.
B. Add a section element to the EmployeeSection element of the application configuration file.
C. Create a custom section handler class that implements the IConfigurationSectionHandler interface.
D. Add an EmployeeSection element to the configSections element of the application configuration file.
E. Create a custom section handler class that implements the IApplicatioSettingsProvider interface.
F. Add a section element to the configSections element of the application configuration file.
单项选择题
You work as an application developer at Certkiller .com. You are developing an application that makes use of a Queue class object named MyQueue. This Queue class object will be used to store messages sent by the user during application run time.You would like to access the message at the beginning of the queue， prior to processing the user messages， without removing it. What should you do？（）
A. Use the Enqueue method of the MyQueue object.
B. Use the Contains method of the MyQueue object.
C. Use the Dequeue method of the MyQueue object.
D. Use the Peek method of the MyQueue object.
多项选择题
You work as an application developer at Certkiller .com. You have recently created an application domain for Certkiller .com. A few weeks later you are asked to retrieve information from this application domain， which is the current application domain. What can you do to achieve this objective？（）
A. Use the following code： AppDomain appInfo = ApplicationDomain.Current；
B. Use the following code： AppDomain appInfo = AppDomain.CurrentDomain （）；
C. Use the following code： AppDomain appInfo = Thread.GetDomain （）；
D. Use the following code： AppDomain appInfo = MainThread.GetDomain （）；
单项选择题
You work as an application developer at Certkiller .com. You have been given the responsibility of creating a class named CalcSalary that will determine the salaries of Certkiller .com’s staff.The CalcSalary class includes methods to increment and decrement staff salaries.You would like to invoke the IncrementSalary and DecrementSalary methods dynamically at runtime from the sales manager application when needed. After viewing the information displayed in the exhibit， you decide to use the Salary delegate to invoke these methods. using System； public delegate boolSalary （Employee Emp， double Amount）； public class CalcSalary { // for promotions public static bool IncrementSalary （Employee Emp， double Amount） { // implementation details } // for demotions public static bool DecrementSalary （Employee Emp， double Amount） { // implementation details } What code should you use？（）
A.A
B.B
C.C
D.D
单项选择题
You work as an application developer at Certkiller .com. You are required to dynamically load assemblies into a custom child application domain. You need to ensure that the assemblies loaded into the child application domain have the same permissions as the applications that are accessed across the local intranet.What should you do？（）
A.A
B.B
C.C
D.D
单项选择题
You work as an application developer at Certkiller .com. You have recently created a business application， which requires complex installation logic. You add the following code to your project after electing to create a custom installer for the business application. public class ApplicationInstaller ： Intaller { public override void Install （IDictionary stateSaver） { //Install the application Base.Install （stateSaver）； } public override void Commit （IDictionary savedState） { //Commit the application Base.Commit （savedState）； } public override void Rollback （IDictionary savedState） { //Rollback the application Base.Rollback （savedState）； } public override void Uninstall （IDictionary savedState） { //UnInstall the application Base.Uninstall （savedState）； } } What should be done NEXT？（）
A. The assembly should be compiled and the Install.exe tool should be run.
B. The RunInstaller attribute should be added to the business application assembly and it should be set to true.
C. The assembly should be compiled and should be run as normal.
D. The RunInstaller attribute should be added to the ApplicationInstaller class and it should be set to true.
多项选择题
You work as an application developer at Certkiller .com. Certkiller .com has instructed you to create a class named MetricFormula. This class will be used to compare MetricUnit and EnglishUnit objects.The MetricFormula is currently defined as follows （Line numbers are used for reference purposes only）： 1. public class MetricFormula2. { 3. 4. } You need to ensure that the MetricFormula class can be used to compare the required objects. What should you do？（）
A. Add the following code on line 1：： IComparable {
B. Add the following code on line 1：： IComparer {
C. Add the following code on line 3： public int Compare （object x， object y） {// implementation code }
D. Add the following code on line 3： public int CompareTo （object obj） {// implementation code }
单项选择题
You work as an application developer at Certkiller .com. Certkiller .com has asked you to develop an application allows administrators to control Windows services dynamically without using the Services MMC. You start by creating a class named LocalServiceController. You need to add the correct code to the LocalServiceController class to ensure that administrators are able to start local Windows services.What code should you use？（）
A.A
B.B
C.C
D.D
单项选择题
You work as an application developer at Certkiller .com. Certkiller .com has asked you to create a multi-threaded application， which executes a critical database backup operation on an hourly basis. You define this operation with the following code： public void BackupDB （） { //Implementation code } You then create a Thread object for the purpose of invoking this method. You need to ensure that the thread is scheduled for execution before any other thread at runtime.What should you do？（）
A.A
B.B
C.C
D.D
单项选择题
You work as an application developer at Certkiller .com. You have recently created an application domain for Certkiller .com. A few weeks later， you are required to determine if assembly references in this application domain， which is the current application domain， are being cached. What property should you use to achieve this objective？（）
A. AppDomain.CurrentDomain.ShadowCopyFiles
B. AppDomain.CurrentDomain.CachePath
C. AppDomain.CurrentDomain.ConfigurationFile
D. AppDomain.CurrentDomain.Evidence