VB.net Interview Questions and Answers
Visual Basic .NET, or VB.NET, is a general-purpose, an object-oriented programming language that is implemented on the .NET Framework. On our website, we have provided potential vb net interview questions. Evolution of Visual Basic language, VB.NET is not backward-compatible with VB6. Therefore, any code written in the previous version will not compile under the new VB.NET.
VB.NET is a structured language that produces efficient programs. Similar to all of the .NET languages, VB.NET is easy to learn and has full support for the concept of object-oriented language. Everything in VB.NET is treated as an object, including primitive types, user-defined types, and even assemblies. Because VB.NET was implemented on the .NET framework of Microsoft, it has full access to all the libraries in the.Net Framework. You can also run VB.NET programs on Mono, which is an open-source alternative to .NET Framework. Visit our website to watch the most popular vb net interview questions and answers. Also, it is also beneficial because the .NET Framework works not only under Windows but also on Linux and Mac OS.
Most Frequently Asked VB.net Interview Questions
Garbage collection, also called automatic memory management, is used to recycle dynamically allocated memory automatically. This function is performed by Garbage collector that reclaims memory if it gets proved that mind will stay unused.
| S.no | System.string | system.stringbuilder |
|---|---|---|
| 1. | Immutable | Mutable |
| 2. | Does not uses Append keyword | Uses Append keyword |
| 3. | Slow | Fast |
| S.no | DataReader | Dataset |
|---|---|---|
| 1. | Cannot persist content | Persists contents |
| 2. | Connected architecture | Disconnected architecture |
TRACE feature in VB.Net allows the user to view if the code is working fine and if it has been executed in the right manner. This feature belongs to the system.process.diagnostics namespace. A lot of recent vb net objective questions and answers were based on this information.
Authentication refers to identifying an entity. Authorization refers to granting or denying access, depending on the defined access rights. In VB.Net, Authentication often leads to Authorization.
There are three types of Authentication in VB.Net - Windows Authentication, Forms Authentication, and Passport Authentication.
Global Assembly Cache (GAC) stores assemblies that are specifically required for sharing by multiple applications on a computer. GAC is often used when the either.Net assembly has a unique security requirement, or if .Net applications have to be shared with other applications.
| S.no | Common Language Runtime (CLR) | Common Type System (CTS) | Common Language Specification (CLS) |
|---|---|---|---|
| 1. | Forms basis of the .NET framework | Used for communicating between languages | Subset of CTS |
| 2. | Manages Garbage Collection, Code Verification, Code Access Security, and Intermediate Language. | Subset of CLS | Used to unite languages under one umbrella |
| S.no | Int32 | int |
|---|---|---|
| 1. | Base class of int | primitive data type |
| 2. | Represents 32-bit integer | Not a keyword in VB.Net |
It is a dialog box that displays information related to the application to the user. However, unlike a regular form, a user cannot type any text in the message box. To support the message box feature, VB.Net provides a MsgBox function.
Many candidates were asked about the elements in the latest versions during vb net interview questions.
Development History
Designed and developed by Mircosoft to leverage .NET framework classes and runtime environment. This information is mostly asked during vb net interview questions. VB.NET has evolved from Visual Basic 6. Its first version, VB 7.0, was released in 2002.
Latest Version
Its latest updated version, VB 15.8, was released in August 2018.
VB.Net has some robust features that make it a popular language among developers:
Our unique extensively researched visual basic exam questions and answers are the best way to prepare for job interviews.
- Assembly Versioning
- Indexers
- Standard Library
- Conditional Compilation
- Properties and Events
- Simple Multithreading
- Delegates and Events Management
- Boolean Conditions
- Easy-to-use Generics
- Automatic Garbage Collection