What is a Metadata?
.NET Interview Questions and Answers
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24. What is a Metadata?
Metadata is information about a PE. In COM, metadata is communicated through non-standardized type libraries.
In .NET, this data is contained in the header portion of a COFF-compliant PE and follows certain guidelines;
it contains information such as the assembly’s name, version, language (spoken, not computera.k.a.,
culture), what external types are referenced, what internal types are exposed, methods, properties, classes, and much more.
The CLR uses metadata for a number of specific purposes. Security is managed through a public key in the PE’s header.
Information about classes, modules, and so forth allows the CLR
to know in advance what structures are necessary. The class loader component of the CLR uses metadata to locate specific classes within assemblies, either locally or across networks.
Just-in-time (JIT) compilers use the metadata to turn IL into executable code.
Other programs take advantage of metadata as well.
A common example
is placing a Microsoft Word document on a Windows 2000 desktop. If the document file has completed comments, author, title, or other Properties metadata, the text is displayed as a tool tip when a user hovers the mouse over the document on the desktop. You can use the Ildasm.exe utility to view the metadata in a PE. Literally, this
tool is an IL disassembler.
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Other Interview Questions
- What is .NET?
- How many languages .NET is supporting now?
- How is .NET able to support multiple languages?
- How ASP .NET different from ASP?
- What is smart navigation?
- What is view state?
- How do you validate the controls in an ASP .NET page?
- Can the validation be done in the server side? Or this can be done only in the Client side?
- How to manage pagination in a page?
- What is ADO .NET and what is difference between ADO and ADO.NET?
- Observations between VB.NET and VC#.NET?
- Advantages of migrating to VB.NET ?
- Advantages of VB.NET
- Using ActiveX Control in .Net
- What is Machine.config?
- What is Web.config?
- What is the difference between ADO and ADO.NET?
- What is the difference between VB and VB.NET?
- What is a Strong Name?
- What is a Manifest?
- Creating a Key Pair?
- What is the difference between "using System.Data;" and directly adding the reference from "Add References Dialog Box"?
- What is GAC?
- What is a Metadata?
- What is managed code and managed data?
- What is .NET / .NET Framework?
- What is Reflection?
- What is "Common Type System" (CTS)?
- What is "Common Language Specification" (CLS)?
- What is "Common Language Runtime" (CLR)?
- What are Attributes?
- What are the Types of Assemblies?
- What is an Intermediate language?
- ASP.NET Authentication Providers and IIS Security
- What is the difference between ASP and ASP.NET?
- Using COM Component in .Net
- What is an assembly?
- What is a Web Service?
- webFarm Vs webGardens
- What is the difference between a namespace and assembly name?
- What’s a Windows process?
- What’s typical about a Windows process in regards to memory allocation?
- Explain what relationship is between a Process, Application Domain, and Application?
- What are possible implementations of distributed applications in .NET?
- What are the consideration in deciding to use .NET Remoting or ASP.NET Web Services?
- What’s a proxy of the server object in .NET Remoting?
- What are remotable objects in .NET Remoting?
- What are channels in .NET Remoting?
- What security measures exist for .NET Remoting in System.Runtime.Remoting?
- What is a formatter?
- Choosing between HTTP and TCP for protocols and Binary and SOAP for formatters, what are the trade-offs?
- What’s SingleCall activation mode used for?
- What’s Singleton activation mode?
- How do you define the lease of the object?
- Can you configure a .NET Remoting object via XML file?
- How can you automatically generate interface for the remotable object in .NET with Microsoft tools?
- What is Delegation?
- What is "Microsoft Intermediate Language" (MSIL)?
- Differences between Datagrid, Datalist and Repeater?
- I am constantly writing the drawing procedures with System.Drawing.Graphics, but having to use the try and dispose blocks is too time-consuming with Graphics objects. Can I automate this?
- How do you trigger the Paint event in System.Drawing?
- With these events, why wouldn’t Microsoft combine Invalidate and Paint, so that you wouldn’t have to tell it to repaint, and then to force it to repaint?
- How can you assign an RGB color to a System.Drawing.Color object?
- What class does Icon derive from? Isn’t it just a Bitmap with a wrapper name around it?
- Before in my VB app I would just load the icons from DLL. How can I load the icons provided by .NET dynamically?
- When displaying fonts, what’s the difference between pixels, points and ems?
- What is the difference between VB 6 and VB.NET?
- What are the authentication methods in .NET?
- What is Serialization in .NET?
- What’s the use of System.Diagnostics.Process class?
- Difference Abstract class and Interface
- re-clarification of object based:
- How to achieve Polymorphism in VB.Net?
- Difference between Class And Interface
- What doesu mean by .NET framework?
- What is assembly?
- What is namespaces?
- NET framework overview
- What is the base class of .NET?
- Explain assemblies.
- Name some of the languages .NET support?
- ADO.NET features? Benefits? Drawbacks?
- How many types of exception handlers are there in .NET?
- Difference between Panel and GroupBox classes?
- What is the base class of Button control?
- What is Response object? How is it related to ASP’s Response object?
- What is IIS? Have you used it?
- Main differences between ASP and ASP.NET.
- What are the advantages and drawbacks of using ADO.NET?
- Why The JavaScript Validation Not Run on the Asp.Net Button But Run SuccessFully On The HTML Button
- what is the difference between user control an custom control? advantages/disadvantages?
- What’s the difference between Response.Write() andResponse.Output.Write()?
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- What is CLR?
- What is Delegate and what is it used for ?
- How is meant by DLL ?
- Which DLL translate XML to SQL in IIS?
- Can anyone tell me about Secure Socket Layer? How to make use of the technology?
- What is the Differnce Between Response.write & response.output.Write
- Which dll is required to translate XML to SQL in IIS ?
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- What is serialization, how it works in .NET?
- What should one do to make class serializable?
- What exactly is being serialized when you perform serialization?
- How does output caching work in ASP.NET?
- What is connection pooling and how do you make your application use it?
- What are different methods of session maintenance in ASP.NET?
- What is Viewstate?
- Can any object be stored in a Viewstate?
- What should you do to store an object in a Viewstate?
- Explain how Viewstate is being formed and how it’s stored on client.
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- Explain DataSet.AcceptChanges and DataAdapter.Update methods.
- When we go for html server controls and when we go for web server controls?
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