1. Which of the following statements about loading related objects in Entity Framework are true?
a. – For POCO classes, it is possible to explicitly load related entities using Load() method
b. – Eager loading makes it possible to retrieve entity object(s) with related data in single database trip
c. – Lazy loading is enabled by default in Entity Framework
d. – Lazy loading performs database select behind the scenes, when entity’s navigation property is accessed.
2. Which of the following statements about ASP.NET MVC HTML helpers are true?
a. – ASP.NET MVC framework has some set of useful, built in HTML helpers
b. – To Write your own html helper, you need to write an extension method of HtmlHelper class
c. – System.Web.Mvc has to be referred explicitly in a view in order to use built in html helpers there
d. – HTML Helpers are simple functions where you can specify the HTML markup for some reusable component.
3. Which pattern is used, when subclassing is not possible or impractical, to add functionality at runtime?
a. – Decorator,
b. – Adapter,
c. – Composite,
d. – Proxy
4. Which of the following statements about C# interfaces are true?
a. – Interfaces can be inherited by other interfaces
b. – Classes can implement 2 interfaces which have the same method signature
c. – interfaces can contain only methods as members
d. – Interface members can have access modifiers
e. – Interfaces can be instantiated directly
5. What can be used to identify a postback?
a. – HasPostedBack()
b. – IsPostBack()
c. – ViewState
d. – Session
6. Given the following code:
class Sample {
event SampleEventHandlerType SampleEvent;
}
a. – SampleEventHandlerType must be derived from System.EventHandler
b. – SampleEventHandlerType must take two parameters: Object and classderived from System.EventArgs
c. – SampleEventHandlerType must not be static.
7. Which common design pattern is shown below?
public class A
{
private A instance;
private A() {}
public static A Instance
{
get{
if(instance == null)
instance = new A();
return instance;
}
}
}
a. – Abstract Factory
b. – Factory,
c. – Singleton
d. – Builder
8. Which object can help you maintain data across users?
a. – Application Object,
b. – Response Object,
c. – Session Object,
d. – Server Object
9. You can prevent a class from being inherited by another class by using which keyword?
a. – sealed,
b. – Const,
c. – Final,
d. – Static
10. Which of the following scenarios force to select a strategy pattern?
a. – A client needs to choose from multiple algorithms
b. – A client needs to use a family of related objects
c. – Multiple classes are the same but differ only in their behaviors
d. – A change to an object requires changing other objects
11. Which of the following statements are true about exception handling in C#?
a. – catch blocks should be placed from the most specific to most general one
b. – correct blocks order is try/catch/finally
c. – Writing single catch(Exception ex) block should be avoided
d. – Code in finally block is only executed when exception does not occur
e. – throw ex; opposed to throw; placed in catch block makes sure stack trace is preserved
12. In the entity framework which is the primary object that you use to query and modify data?
a. – SessionContext,
b. – EntityObject,
c. – DataContext,
d. – DbContext,
13. Which of the following are a type of entity?
a. – POCO
b. – DBSet
c. – EntityObject
d. – POCO Proxy
14. Which of the following statements about ASP.NET MVC action filters are true?
a. -ASP.NET MVC currently supports 4 types of action filters, but that number can be increased by adding new ones by a developer
b. – It is a mechanism of filtering and limiting requests to given routes
c. – There is a certain order in which action filters are executed
d. – It is a mechanism of adding extra, reusable logic like authorization to action method by decorating it via attribute.
15. Which .NET Collection class allows elements to be accessed using a unique key?
a. – Hashtable,
b. – Dictionary,
c. – List,
d. – ListDictionary,
e. – Stack
16. What is the correct header of string Extension method called WordCount, returning int?
a. – static int WordCount(this string str)
b. – public static int WordCount(string str)
c. – public int WordCount(this string str)
d. – public static int WordCount(this string str)
e. – public int WordCount(string str)
17. What are the advantages of System.Collections.IDictionaryEnumerator over System.Collections.IEnuerator
a. – It provides additional methods to distinguish a key from a specific value,
b. – It is optimized for the dictionary structure,
c. – It has additional properties for direct access to the key and the value
18. What is a delegate?
a. – A strongly typed function pointer;
b. – A light weight thread or process that can call a single method,
c. – An inter-process message channel,
d. – A reference to an object in a different process.
19. Which of the following statements about the Entity Framework are true?
a. – It Provides query syntax for querying the model.
b. – It automatically generates the classes from the model and updates these classes dynamically when the model is changed.
c. – It does not provide any mechanisms to track changes to the model’s objects.
d. – It takes care of database connectivity
20. Choose types are guarantee atomic reads and writes.
a. – float,
b. – long,
c. – double,
d. – string,
e. – int
21. Assuming that only default MVC route is applied, typing ‘/posts/list” URL will result in calling following method on server side.
a. – List() in Posts class,
b. – List() in PostsController class,
c. – PostsList() in Controller class,
d. – This URL is invalid
22. Which of the following jobs are performed by Garbage Collector?
a. – Closing Unclosed files,
b. – Freeing memory on the stack
c. – Closing unclosed database collections,
d. – Freeing memory occupied by unreferenced objects,
e. – Avoiding memory leaks.
23. Which of the following ways of overloading a method in C# are correct?
a. – Different number of Parameters,
b. – Different Parameter data types,
c. – Different return type,
d. – Different order of parameters.
24. Which ServiceController method can be used to send a command to the service?
a. – SendCommand(),
b. – Begin(),
c. – Start(),
d. – ExecuteCommand()
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