When should you call the garbage collector in .NET?

When should you call the garbage collector in .NET?
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Answer :

As a good rule, you should not call the garbage collector. However, you could call the garbage collector when you are done using a large object (or set of objects) to force the garbage collector to dispose of those very large objects from memory. However, this is usually not a good practice.
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Related questions

When should you call the garbage collector in .NET?

Description : When should you call the garbage collector in .NET?

Last Answer : As a good rule, you should not call the garbage collector. However, you could call the garbage collector when you are done using a large object (or set of objects) to force the garbage collector to dispose of those very large objects from memory. However, this is usually not a good practice. 

Type of garbage collector?

Description : Type of garbage collector?

Last Answer : Answer:There are two types of Garbage Collector managed garbage collector  see we will declaring variable ,object in our programes once this kind of variable,object goes out of the ... datbase once the connection is closed it puts this memmory ino the heep and process follws the same

Briefly describe how garbage collection works.

Description : Briefly describe how garbage collection works.

Last Answer : The garbage collector is a thread that runs in the background of managed .NET applications. It constantly traces the reference tree and attempts to find objects that are no longer referenced. When a nonreferenced object is found, its memory is reclaimed for later use.

Describe garbage collection (in simple terms).

Description : Describe garbage collection (in simple terms).

Last Answer : Garbage collection eliminates uneeded objects. 1. the new statement allocates memory for an object on the heap. 2. When no objects reference the object it may be removed from the heap (this is a non deterministic process). 3. Finalize is called just before the memory is released.

Do local values get garbage collected?

Description : Do local values get garbage collected? 

Last Answer : They die when they are pulled off the stack (go out of scope). 

Describe, in general, how java's garbage collector works ?

Description : Describe, in general, how java's garbage collector works ?

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Which one of the following tools is used to view the metadata information contained in a .NET assembly? Select Answer:  1. al.exe  2. ilasm.exe  3. vbx.exe  4. csc.exe  5. ildasm.exe

Description : Which one of the following tools is used to view the metadata information contained in a .NET assembly? Select Answer:  1. al.exe  2. ilasm.exe  3. vbx.exe  4. csc.exe  5. ildasm.exe

Last Answer :  5. ildasm.exe

In Visual Basic .NET or Visual C# programming, when would you use Structured Query Language (SQL)? How are they executed?

Description : In Visual Basic .NET or Visual C# programming, when would you use Structured Query Language (SQL)? How are they executed? 

Last Answer : ADO.NET handles most of the database communication for you behind-thescenes. You would only use SQL statements when generating ad-hoc queries for the database. You execute SQL statements by ... returning statements, such as DELETE, INSERT INTO, or UPDATE statements, use the ExecuteNonQuery method.

How could you execute DDL commands, such as ALTER or CREATE TABLE, against a database with ADO.NET?

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Last Answer : You must use a Command object to execute DDL commands. You can set the CommandType property to Text and enter the appropriate DDL command in the CommandText property. Then call Command.ExecuteNonQuery to execute the command.

Briefly contrast connected and disconnected data access in ADO.NET.

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Description : Briefly describe the major components of the .NET Framework and describe what each component does.

Last Answer : The .NET Framework consists of two primary parts: the common language runtime, which manages application execution, enforces type safety, and manages memory reclamation, and the .NET base class library, which consists of thousands of predeveloped classes that can be used to build applications.

Option statements that are supported in VB.NET?

Description : Option statements that are supported in VB.NET?

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What do you know about .NET assemblies?

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What is purpose of Assembly Linker or define SDK Tool in .NET Framework?

Description : What is purpose of Assembly Linker or define SDK Tool in .NET Framework?

Last Answer : Answer: In .NET whole the working should be with the helps of DLLs.So all of Visual Studio .Net compilers gernate assemblies or u can say dll.If we want to create an assembly with ... Studio .Net .This multi file can contain modules that are written in diffrenet langauage in one application.

What size is a .NET object?

Description : What size is a .NET object?

Last Answer : Each instance of a reference type has two fields maintained by the runtime - a method table pointer and a sync block. These are 4 bytes each on a 32-bit system, making a total of 8 bytes ... bytes, even for classes with no data (e.g. System.Object). Values types have no equivalent overhead. 

What is the smallest unit of execution in .NET?

Description : What is the smallest unit of execution in .NET?

Last Answer : an Assembly. 

How is the DLL Hell problem solved in .NET?

Description : How is the DLL Hell problem solved in .NET? 

Last Answer : Assembly versioning allows the application to specify not only the library it needs to run (which was available under Win32), but also the version of the assembly.

What are advantages and disadvantages of Microsoft-provided data provider classes in ADO.NET?

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Last Answer : SQLServer.NET data provider is high-speed and robust, but requires SQL Server license purchased from Microsoft. OLE-DB.NET is universal for accessing other sources, like Oracle, DB2, Microsoft Access and Informix. ... on top of the OLE layer, so it's not as fastest and efficient as SqlServer.NET.

What is the role of the DataReader class in ADO.NET connections?

Description : What is the role of the DataReader class in ADO.NET connections?

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How do you debug an ASP.NET Web application?

Description : How do you debug an ASP.NET Web application?

Last Answer : Attach the aspnet_wp.exe process to the DbgClr debugger. 

What debugging tools come with the .NET SDK?

Description : What debugging tools come with the .NET SDK?

Last Answer : 1. CorDBG – command-line debugger. To use CorDbg, you must compile the original C# file using the /debug switch. 2. DbgCLR – graphic debugger. Visual Studio .NET uses the DbgCLR.

What’s the .NET collection class that allows an element to be accessed using a unique key?

Description : What’s the .NET collection class that allows an element to be accessed using a unique key? 

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What’s the top .NET class that everything is derived from?

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Description : How is the DLL Hell problem solved in .NET? 

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What are advantages and disadvantages of Microsoft-provided data provider classes in ADO.NET?

Description : What are advantages and disadvantages of Microsoft-provided data provider classes in ADO.NET?

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What is the role of the DataReader class in ADO.NET connections?

Description : What is the role of the DataReader class in ADO.NET connections?

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How do you debug an ASP.NET Web application?

Description : How do you debug an ASP.NET Web application?

Last Answer : Attach the aspnet_wp.exe process to the DbgClr debugger.

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What’s the .NET collection class that allows an element to be accessed using a unique key?

Description : What’s the .NET collection class that allows an element to be accessed using a unique key?

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What’s the top .NET class that everything is derived from?

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Description : Will we eventually see a .NET Framework-based version of Java as a competitor to C#?

Last Answer : Apparently not. Microsoft will never offer a complete Java environment because Sun has essentially required that Java licensees implement all of Java-something Microsoft will never do. (Why should it? Does ... she's working in a true Java environment because the familiar libraries won't be there. 

But won't most .NET developers eventually choose C# over Visual Basic.NET?

Description : But won't most .NET developers eventually choose C# over Visual Basic.NET? 

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Isn't C# the native language of .NET?

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What’s the top .NET class that everything is derived from?

Description : What’s the top .NET class that everything is derived from?

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Explain how to use the Begin and End methods on a Web Service to make an asynchronous method call.

Description : Explain how to use the Begin and End methods on a Web Service to make an asynchronous method call.

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If a base class has a number of overloaded constructors, and an inheriting class has a number of overloaded constructors; can you enforce a call from an inherited constructor to a specific base constructor?

Description : If a base class has a number of overloaded constructors, and an inheriting class has a number of overloaded constructors; can you enforce a call from an inherited constructor to a specific base constructor?

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If a base class has a number of overloaded constructors, and an inheriting class has a number of overloaded constructors; can you enforce a call from an inherited constructor to a specific base constructor?

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If a base class has a bunch of overloaded constructors, and an inherited class has another bunch of overloaded constructors, can you enforce a call from an inherited constructor to an arbitrary base constructor?

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Which method will you call to start a thread?

Description : Which method will you call to start a thread?

Last Answer : Start

What si the difference between interface and abstractclass Select Answer:  1. interface contain only methods  2. we can't declare a variable for interface  3. interface contain only events  4. None  5. All

Description : What si the difference between interface and abstractclass Select Answer:  1. interface contain only methods  2. we can't declare a variable for interface  3. interface contain only events  4. None  5. All

Last Answer : Ans : 2 The only Difference between Interface and Abstract class is we can declare a variable in abstract class but we can't declare in variable interface

What is the lifespan for items stored in ViewState? Select Answer:  1. Item stored in ViewState exist for the life of the current page  2. Item stored in ViewState exist for the life of the current Session  3. Item stored in ViewState exist for the life of the current Applicaiton  4. Item stored in ViewState exist for the life of the current configuration

Description : What is the lifespan for items stored in ViewState? Select Answer:  1. Item stored in ViewState exist for the life of the current page  2. Item stored in ViewState exist for the life ... of the current Applicaiton  4. Item stored in ViewState exist for the life of the current configuration

Last Answer : 1. Item stored in ViewState exist for the life of the current page AS any web application works on request and response basis ,so on every post backs, The data in control gets lost. To retain page ... control with data. The life cycle of the view state exist for life of current running page only. 

How would you ensure that all relevant registry entries were removed in the event that installation of your application failed?

Description : How would you ensure that all relevant registry entries were removed in the event that installation of your application failed?

Last Answer : You can ensure that registry entries are removed, as well as perform any other “clean-up” tasks, by creating an Installer class and writing the appropriate code in the Rollback event handler. Then create a new Custom Action and set the InstallerClass, and EntryPoint properties to appropriate values.

Describe a general strategy for creating a setup project that terminates installation if a specific file is not already installed on the target machine.

Description : Describe a general strategy for creating a setup project that terminates installation if a specific file is not already installed on the target machine.

Last Answer : First, create a file search to search the file system for the specific file. Then create a launch condition to evaluate the results of the search. You can connect the launch condition to ... in the search's Property property in the expression specified by the launch condition's Condition property. 

What is the purpose of a bootstrapper application? When do you not need to create one?

Description : What is the purpose of a bootstrapper application? When do you not need to create one?

Last Answer : A bootstrapper application automatically detects if Windows Installer is installed on the target machine. If Windows Installer is not present, it installs Windows Installer before proceeding with the rest ... Installer 1.5 already installed) or have had Microsoft Installer 1.5 installed previously.

What is a native image? How do you create one?

Description : What is a native image? How do you create one?

Last Answer : A native image is a precompiled version of a .NET assembly. You can create a native image of your application by using the Ngen.exe utility.

Describe XCOPY deployment. Under what conditions is it useful? When can it not be used?

Description : Describe XCOPY deployment. Under what conditions is it useful? When can it not be used?

Last Answer : XCOPY deployment is a simple method of deployment where the DOS command XCOPY is used to copy the application directory and any subdirectories to the target machine. You can use XCOPY ... an application requires a more complex deployment or references shared assemblies, you cannot use XCOPY.

What is a shared assembly? How would you create one?

Description : What is a shared assembly? How would you create one?

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Briefly highlight the differences between imperative and declarative security as they pertain to code access security.

Description : Briefly highlight the differences between imperative and declarative security as they pertain to code access security.

Last Answer : Imperative security is implemented by calling methods of Permission objects in code at run time. Declarative security is configured by attaching attributes representing permissions to classes ... request assembly-wide permissions using the Assembly (assembly) directive with declarative security.