C# .NET Quiz with Result 1) A local variable
a) Can be used anywhere in the program b) Is declared within a method - correct answer c) Must accept a class d) Represent a class object 2) An instance variable
a) is an object of a class b) represents an attribute of an object - correct answer c) is a method of a class d) a and c 3) Private Button print = new button();
a) creates a button control b) initializes a button control c) instantiates button control d) a and b e) a and c - correct answer 4) An instance method
a) Represents the behavior of an object - correct answer b) Represents the attribute of an object c) Represents another class d) a and b 5) A Constructor
a) is used to create objects b) must have the same name as the class it is declared within c) maybe overloaded d) b and c e) all of the above - correct answer 6) class Test: Form { }
a) Creates the class Test : Form b) Creates the class Test that inherits the class Form - correct answer c) Creates the class form that inherits the class Test d) a and b 7) A variable declared inside a method is called a________variable
a) Static b) Private c) Local - correct answer d) Serial e) b and d 8) Defining two methods with the same name but with different parameters is called.
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a) Loading b) Overloading - correct answer c) Multiplexing d) Duplexing 9) Find any errors in the following BankAccount constructor: Public int BankAccount() { balance = 0; }
a) Name b) Formal parameters c) Return type - correct answer d) No errors 10) In the body of a method, C# uses the variable named_____to refer to the current object whose method is being invoked.
a) call b) this - correct answer c) do d) that 11) String mystring; Creates a(n)
a) Class b) Constructor c) Object - correct answer d) a and b 12) An Event is
a) The result of a users action - correct answer b) result of a party c) code to force users action 13) A delegate defines
a) a Wahsington representative b) a class that encapsulates methods - correct answer c) a means of passing arrays into methods d) a substitue for an inherited method 14) Is it possible to pass methods as arguments for other methods without modification.
a) True - correct answer b) False 15) All interfaces must contain IDrivable
a) True b) False - correct answer 16) What is the proper header for a class that intends to use an interface.
a) class MyClass IFace b) class MyClass ; IFace c) class MyClass : IFace - correct answer d) class MyCalss {IFace}
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e) class MyCalss(IFace) 17) In order for a class to use an interface, it must
a) inherit the properties of the interface b) contain the same methods as the interface c) create an interface objects d) a and b e) all of the above - correct answer 18) Every class directly or indirectly extends the______class.
a) System b) Object - correct answer c) Drawing d) Console 19) The concept of composition specifies that you can.
a) Compose good code with C# b) Compose C# projects with different objects - correct answer d) Reduce errors by remaining composed during programming e) all of the above 20) Polymorphism occurs when the methods of the child class.
a) Override the parent class methods but maintain the implementation b) Maintain the same return type and arguments as the parent class, but implement it differently - correct answer c) Have different return types and arguments than the parent class d) Are Virtual 21) To output the value of multidimensional array, Console.WriteLines(___)
a) myArray[1][3]; - correct answer b) myArray[1.3]; c) myArray{1}{3}; d) myArray(1),(3); 22) All methods in an abstract base class must be declared abstract.
a) True b) False - correct answer 23) Methods that are declared abstract in the base class must show implementation at the time of declaration.
a) True b) False - correct answer 24) The code public class B : A { }
a) Defines a class that inherits all the methods of A b) Defines a class that inherits the public and protected methods of A only correct answer c) Errors d) a and b
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25) Assuming that public class B : A { public B(int i) :base(i) { } } compiles and runs correctly, what can we conclude about the constructors in the class A?
a) One constructor takes an argument of type i b) There is only a default constructor c) One constructor takes an arguments of the type int - correct answer d) a and b 26) Classes declared with the sealed keyword cannot be base class.
a) True - correct answer b) False 27) A method_____an exception when that method detects that a problem has occured.
a) Trys b) Catches c) Throws - correct answer d) a and b 28) Exception objects are derived from the class.
a) Try b) Catch c) Exception - correct answer d) Event e) System 29) An abstract class
a) may contain instance variables b) may contain constructors c) may extend another class d) a and b e) all of the above - correct answer 30) A____block enclose the code that could throw an exception.
a) Try - correct answer b) Catch c) Exception d) Error e) a and b 31) A Thread is:
a) an object that allows computer multitasking - correct answer b) an object that wraps itself with other threads c) a deprecated object that is no longer used 32) Synchronization is:
a) the delaying of a thread until there is sufficient memory and work to keep it up b) making every thread start and end at the same time c) make each thread do the s ame thing d) have each thread start at the same time but not necessarily finish together
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e) wait until the required resources, that are used by other threads become available - correct answer 33) In C# Thread.Sleep(time) measures time in:
a) seconds b) milliseconds - correct answer c) nanoseconds d) all of the above 34) When a thread returns from a WaitSleepJoin or Suspended state it returns to the:
a) Unstarted state b) Stopped state c) Started state (now considering a part of the running state) - correct answer d) Resume state 35) The ThreadPriority enumeration does not contain:
a) Lowest b) Highest c) BelowNormal d) None of the above - correct answer 36) The way of returning a thread from s suspended state is:
a) Pulse b) PulseAll c) Interrupt d) Resume - correct answer e) ReStart 37) In order to lock/unlock an object use the.
a) Lock and Unlock methods b) Enter and Exit methods - correct answer c) Close and Open methods d) Close and Allow methods 38) Class String and the Char structure found in the:
a) System.Strings namespace b) System.Text namespace c) System.Chars namespace d) System namespace - correct answer 39) A String literal is a:
a) only contains one character b) contains numbers rather than letters c) sequence of characters in double quotation marks - correct answer d) contains exactly its variable name and nothing else 40) To create a string li teral exclude escape sequence, use:
a) !string b) @string - correct answer
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c) #string d) $string 41) String indexers treat strings as:
a) binary code b) 1 to string Length c) arrays of characters - correct answer d) a character 42) If an IndexofAny method is passed an array of characters it:
a) finds the first occurrence of each letter in the string b) searches for the first occurrence of any of the characters in the string correct answer c) will search for the first occurrence of the sequence of characters d) generates an error 43) Concatenating with strings are done with:
a) reserved words b) method calls c) operator overloading d) operator overloading and method calls - correct answer 44) If two StringBuilder objects contain the same string then
a) they represent the same meory location b) the are two different objects - correct answer c) if one changes, so will the other d) None of the above 45) The proper way to convert a string to all lowercase is:
a) String = string.ToLower(string); b) ToLower(string); c) string.ToLower(); - correct answer d) string.ToLower(string);
ASP.NET QUIZ WITH RESULT 1) Which of the following languages can be used to write server side scripting in ASP.NET?
a) C-sharp b) VB c) C++ d) a and b - correct answer 2) When an .aspx page is requested from the web server, the out put will be rendered to browser in following format.
a) HTML - correct answer b) XML c) WML d) JSP
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3) The Asp.net server control, which provides an alternative way of displaying text on web page, is
a) < asp:label > - correct answer b) < asp:listitem > c) < asp:button > 4) The first event to be triggered in an aspx page is.
a) Page_Load() b) Page_Init() - correct answer c) Page_click() 5) Postback occurs in which of the following forms.
a) Winforms b) HTMLForms c) Webforms - correct answer 6) What namespace does the Web page belong i n the .NET Framework class hierarchy?
a) System.web.UI.Page - correct answer b) System.Windows.Page c) System.Web.page 7) Which method do you invoke on the Data Adapter control to load your generated dataset?
a) Fill( ) - correct answer b) ExecuteQuery( ) c) Read( ) 8) How do you register a user control?
a) Add Tag prefix, Tag name b) Add Source, Tag prefix c) Add Src, Tagprefix, Tagname - correct answer 9) Which of the following is true?
a) User controls are displayed correctly in the Visual Studio .NET Designer b) Custom controls are displayed correctly in VS.Net Designer - correct answer c) User and Custom controls are displayed correctly in the Visual Studio .NET Designer. 10) To add a custom control to a Web form we have to register with.
a) TagPrefix b) Name space of the dll that is referenced c) Assemblyname d) All of the above - correct answer 11) Custom Controls are derived from which of the classes
a) System.Web.UI.Webcontrol b) System.Web.UI.Customcontrol c) System.Web.UI.Customcontrols.Webcontrol - correct answer 12) How ASP.Net Different from classic ASP?
a) Scripting is separated from the HTML, Code is interpreted seperately
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b) Scripting is separated from the HTML, Code is compiled as a DLL, the DLLs can be executed on server - correct answer c) Code is separated from the HTML and interpreted Code is interpreted separately 13) What's the difference between Response.Write() andResponse.Output.Write()?
a) Response.Output.Write() allows you to flush output b) Response.Output.Write() allows you to buffer output c) Response.Output.Write() allows you to write formatted output - correct answer d) Response.Output.Write() allows you to stream output 14) Why is Global.asax is used?
a) Implement application and session level events - correct answer b) Declare Global variables c) No use 15) There can be more than 1 machine.config file in a system
a) True - correct answer b) False 16) What is the extension of a web user control file?
a) .Asmx b) .Ascx - correct answer c) .Aspx 17) Which of the following is true?
a) IsPostBack is a method of System.UI.Web.Page class b) IsPostBack is a method of System.Web.UI.Page class c) IsPostBack is a readonly property of System.Web.UI.Page class - correct answer 18) The number of forms that can be added to a aspx page is.
a) 1 - correct answer b) 2 c) 3 d) More than 3 19) How do you manage states in asp.net application
a) Session Objects b) Application Objects c) Viewstate d) All of the above - correct answer 20) Which property of the session object is used to set the local identifier?
a) SessionId b) LCID - correct answer c) Item d) Key 21) Select the caching type supported by ASP.Net
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a) Output Caching b) DataCaching c) a and b - correct answer d) none of the above 22) Where is the default Session data is stored in ASP.Net?
a) InProcess - correct answer b) StateServer c) Session Object d) al of the above 23) Select the type Processing model that asp.net simulate
a) Event-driven - correct answer b) Static c) Linear d) Topdown 24) Does the EnableViewState allows the page to save the users input on a form?
a) Yes - correct answer b) No 25) Which DLL translate XML to SQL in IIS?
a) SQLISAPI.dll - correct answer b) SQLXML.dll c) LISXML.dll d) SQLIIS.dll 26) What is the maximum number of cookies that can be allowed to a web site?
a) 1 b) 10 c) 20 - correct answer d) More than 30 27) Select the control which does not have any visible interface.
a) Datalist b) DropdownList c) Repeater - correct answer d) Datagrid 28) How do you explicitly kill a user session?
a) Session.Close( ) b) Session.Discard( ) c) Session.Abandon - correct answer d) Session.End e) Session.Exit 29) Which of the following is not a member of ADODBCommand object?
a) ExecuteReader b) ExecuteScalar
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c) ExecuteStream d) Open - correct answer e) CommandText 30) Which one of the following namespaces contains the definition for IdbConnection?
a) System.Data.Interfaces b) System.Data.Common c) System.Data - correct answer d) System.Data.Connection
SQL ADVANCED 1) What will be the output of the following statement? SELECT LEN(CAST(LEFT('026-100', 3) AS INT))
a) 2 - correct answer b) 3 c) 7 d) Statement will generate an error. 2) What will be the output of the following statement? SELECT CAST(-1 AS SMALLDATETIME)
a) 1900-01-01 00:00:00.000 b) 1899-01-01 00:00:00.000 c) 1752-01-01 00:00:00.000 d) The system will generate an error. Only positive integer values can be converted to a SMALLDATETIME data type. - correct answer 3) What will be the output of the following statement? SELECT ROUND(123.89, -1)
a) 120.00 - correct answer b) 123.00 c) 123.90 d) 124.00 4) What will be the output of the following statement? SELECT STR(6365, 3)
a) *** - correct answer b) 6365 c) 6,365 d) 6400 e) 6365.000 5) What will be the output of the following statement? SET ARITHABORT OFF SET ANSI_WARNINGS OFF SELECT 100/0
a) Null - correct answer b) 0 c) Infinity d) An error is generated. 6) View text definitions are stored in which system table?
a) sysobjects
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b) syscolumns c) syscomments - correct answer d) sysviews 7) What's the maximum value can an INT data type hold?
a) 2,147,483,647 - correct answer b) 2,147,483,648 c) 4,294,967,295 d) 4,294,967,296 8) What is the best data type to store the birthdays of the US Presidents, starting with George Washington's birthday of February 22, 1732?
a) DATETIME b) INT - correct answer c) SMALLDATETIME d) VARCHAR 9) Which of the following is NOT a valid description of the public role?
a) The public role captures all default permissions for users in a database. b) The public role cannot be dropped. c) The public role is contained in every database, including msdb, tempdb, model, and all user databases except in the master database for security purposes. correct answer d) The public role cannot have users, groups, or roles assigned to it. 10) What is the maximum date value that can be stored in a SMALLDATETIME data type?
a) June 6, 2079 - correct answer b) July 6, 2079 c) December 31, 2079 d) December 31, 9999
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