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ExpressJS Interview Questions and Answers

Posted By: Imran Ghani     Posted Date: February 09, 2017    Points: 2   Category :JavaScript/VBScript
 
Most Comprehensive list of Express.js Interview Questions and Answers in series of MEAN Stack Tutorials and Interview Questions.


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C# interview questions and answers

  
Hi...
Can u pls tel me
where to find commonly asked C# interview questions and answers?

ASP.NET Interview Questions & Answers

  
1.How we implement Web farm and Web Garden concept in ASP.NET?At least give an example ?
A web farm is a multi-server scenario. So we may have a server in each state of US. If the load on one server is in excess then the other servers step in to bear the brunt.
How they bear it is based on various models.
1. RoundRobin. (All servers share load equally)
2. NLB (economical)
3. HLB (expensive but can scale up to 8192 servers)
4. Hybrid (of 2 and 3).
5. CLB (Component load balancer).
A web garden is a multi-processor setup. i.e., a single server (not like the multi server above).
How to implement webfarms in .Net:
Go to web.config and
Here for mode = you have 4 options.
a) Say mode=inproc (non web farm but fast when you have very few customers).
b) Say mode=StateServer (for webfarm)
c) Say mode=SqlServer (for webfarm)
Whether to use option b or c depends on situation. StateServer is faster but SqlServer is more reliable and used for mission critical applications.
How to use webgardens in .Net:
Go to web.config and
Change the false to true. You have one more attribute that is related to webgarden in the same tag called cpuMask.

2.Is there any limit for query string? if means what is the maximum size?.
Servers should be cautious about depending on URI lengths above 255 bytes, because some older client or proxy implementations may not properly support these leng

ASP.NET Interview Questions & Answers

  
1.How we implement Web farm and Web Garden concept in ASP.NET?At least give an example ?
A web farm is a multi-server scenario. So we may have a server in each state of US. If the load on one server is in excess then the other servers step in to bear the brunt.
How they bear it is based on various models.
1. RoundRobin. (All servers share load equally)
2. NLB (economical)
3. HLB (expensive but can scale up to 8192 servers)
4. Hybrid (of 2 and 3).
5. CLB (Component load balancer).
A web garden is a multi-processor setup. i.e., a single server (not like the multi server above).
How to implement webfarms in .Net:
Go to web.config and
Here for mode = you have 4 options.
a) Say mode=inproc (non web farm but fast when you have very few customers).
b) Say mode=StateServer (for webfarm)
c) Say mode=SqlServer (for webfarm)
Whether to use option b or c depends on situation. StateServer is faster but SqlServer is more reliable and used for mission critical applications.
How to use webgardens in .Net:
Go to web.config and
Change the false to true. You have one more attribute that is related to webgarden in the same tag called cpuMask.

2.Is there any limit for query string? if means what is the maximum size?.
Servers should be cautious about depending on URI lengths above 255 bytes, because some older client or proxy implementations may not properly support these leng

Windows and Unix Interview Questions & Answers

  
1.What is the difference between unix and windows?
Unix and Windows use completely different paradigms for run-time loading of code. Before you try to build a module that can be dynamically loaded, be aware of how your system works.

In Unix, a shared object (.so) file contains code to be used by the program, and also the names of functions and data that it expects to find in the program. When the file is joined to the program, all references to those functions and data in the file's code are changed to point to the actual locations in the program where the functions and data are placed in memory. This is basically a link operation.

In Windows, a dynamic-link library (.dll) file has no dangling references. Instead, an access to functions or data goes through a lookup table. So the DLL code does not have to be fixed up at runtime to refer to the program's memory; instead, the code already uses the DLL's lookup table, and the lookup table is modified at runtime to point to the functions and data.

In Unix, there is only one type of library file (.a) which contains code from several object files (.o). During the link step to create a shared object file (.so), the linker may find that it doesn't know where an identifier is defined. The linker will look for it in the object files in the libraries; if it finds it, it will include all the code from that object file.

In

C# Interview Questions & Answers

  
1.What is the name of c#.net compiler?
The name of c# complier is .CSC

2.what is the main difference between delegate and an event in c#?
They aren't the same. An event is an event. A "delegate" assigns a particular event handler to an object instance. Thus, when an object event happens, the proper procedure/method is called.

An example might help. I frequently code things so that a single method is called for all instances of a class. No matter which button is clicked, call my generic "button_click" method. That method will use the event arguments to determine which button was actually clicked.

In order to assign all button click events to a single method, I have to code the delegates.

VB.NET Interview Questions & Answers

  
1.Difference Between Array and array list?
Array is the collection of values of the same data type
>the variables in an array is called array elements
>Array is a reference type data type
>The array structure in System's Memory

Array list is a class .
>when you want to access the elements of an array through its index value location in an array,use an ArrayList.
>The use of the arraylist is an alternative to the use of th array.
>The Methods Of ArrayList class are
1)Add
2)Remove
3)Clear
4)Insert
5)TrimToSize
6)Sort
7)Reverse

2.What is the base class of .net?
System.Object is the base class of .NET

It Supports all classes in the .NET Framework class hierarchy and provides low-level services to derived classes. This is the ultimate superclass of all classes in the .NET Framework; it is the root of the type hierarchy.

ADO.NET Interview Questions & Answers

  
1.What is the difference between ADO and ADO.NET?
ADO:-
--------

-Ado is a connected architecture.
-Ado is supported by Lock Types.

ADO.Net:-
----------
-Ado.Net is a Disconnected Architecture.
-Ado.Net is not supported by Lock Types.

2.What is the difference between data reader & data set
DataReader is connected object and one can process the rows that are returned by query, one at a time. It discards every row after you have gone through it and so it is extremely fast.It contains only read-only data, so no updates are allowed using DataReader objects.

In DataReader you can not get the no. of records directly from RecordSet.This is similar to VB 6, ForwardOnly RecordSet.

Meanwhile DataSet is disconnected object type.It uses XML to store data


Data reader is much faster then dataset if only selection query is their

SQL Server Interview Questions & Answers

  
1.What is DESCRIBE command in SQL Server?What is its purpose?How to use it?
DESCRIBE is not a SQL Server Command. This a command used in ORACLE & MYSQL to display the sturcture of a Table.


2.Explain about reporting services of MYSQL?
This forms the report generating environment whereby a report is generated by the data generated by the client and server. This feature is administered via a web interface. Reports are created in RDL format. They can be designed by Microsoft visual studio.

ASP.net MVC Interview Questions Answers

  
List of ASP.net MVC Interview Questions Answers

JQuery Importent Interview Questions with Answers

  
JQuery Importent Interview Questions with Answers

Answers for Scott Hanselman Interview Questions

  
This is my blog post. I just collected the answers of all the questions and posted as a single article

a MUST HAVE HTML5 Interview Questions and Answers

  
HTML5 is the latest Version/Standard of HTML - Hypertext Markup Language. In previous versions, additional plugins were used to render rich web contents but HTML5 facilitates us to render rich contents without the need for any additional plugin.

a MUST HAVE HTML5 Interview Questions and Answers - Part 2

  
1. What is a placeholder attribute in HTML5?
2. What is a draggable attribute in HTML5?
3. Is it possible to get the geographical location of a user using HTML5?
4. What is Application Cache in HTML5?
.....

C# Interview Questions

  
C# Interview Questions
This is a list of questions I have gathered from other sources and created myself over a period of time from my experience, many of which I felt where incomplete or simply wrong. I have finally taken the time to go through each question and correct them to the best of my ability. However, please feel free to post feedback to challenge, improve, or suggest new questions. I want to thank those of you that have contributed quality questions and corrections thus far.

There are some question in this list that I do not consider to be good questions for an interview. However, they do exist on other lists available on the Internet so I felt compelled to keep them easy access

web services interview questions.

  
Hi ,   I am preparing for ASP.NET web service interview.   Can you please send me the FAQ for web services.???   Thanks in advance.   Thanks Narendraan.K

.NET Interview Questions

  
This all.Net Interview Questions are most useful whoom going to face interview as a .Net Fresher.Who are interesting in .NET Technology.

The .NET Interview Question as the following:

1. ASP.NET Interview Questions
2. VB.NET Interview Questions
3. C#.NET Interview Questions
4. SQL Server Interview Questions
5. XML Interview Questions
6. HTML Interview Questions
7. WebServices Interview Questions:
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