Question 1

What is the role of the DataSet object in ADO.NET?

Accepted Answer

One of the major component of ADONET is the DataSet object, which always remains disconnected from the database and reduces the load on the database

Question 2

Why do you use the App_Code folder in ASP.NET?

Accepted Answer

The App_Code folder is automatically present in the project It stores the files, such as classes, typed data set, text files, and reports If this folder is not available in the application, you can add this folder One of the important features of the App_Code folder is that only one dll is created for the complete folder, irrespective of how many files it contains

Question 3

What are the different implementations of LINQ?

Accepted Answer

The different implementations of LINQ are: => LINQ to SQL - Refers to a component ofNET Framework version 35 that provides a run-time infrastructure to manage relational data as objects => LINQ to DataSet - Refers to a component that makes it easier and faster to query over data cached in a DataSet object => LINQ to XML - Provides an in-memory XML programming interface => LINQ to Objects - Refers to the use of LINQ queries with any IEnumerable or IEnumerable(T) collection directly, without the use of an intermediate LINQ provider or API, such as LINQ to SQL or LINQ to XML

Question 4

Which namespaces in .NET are used for XML?

Accepted Answer

The Systemxmldll is the real physical file, which contains the XML implementation Some of the other namespaces that allow NET to use XML are as follows: => SystemXml => SystemXmlSchema => SystemXmlXPath => SystemXmlXsl

Question 5

What technologies are being used in AJAX?

Accepted Answer

AJAX uses four technologies, which are as follows: => JavaScript => XMLHttpRequest => Document Object Model (DOM) => Extensible HTML (XHTML) and Cascading Style Sheets (CSS)

Question 6

Which utility allows you to reference an assembly in an application?

Accepted Answer

An assembly can be referenced by using the gacutilexe utility with the /r option The /r option requires a reference type, a reference ID, and a description

Question 7

How can different versions of private assemblies be used in the same application without a re-build?

Accepted Answer

You can use different versions of private assemblies in the same application without a re-build by specifying the assembly version in the AssemblyInfocs or AssemblyInfovb file

Question 8

How can you implement a condition in a workflow?

Accepted Answer

You can implement a condition by using either of the following ways: => By creating a rule condition - Specifies that you can implement conditions either directly in code or by using a tool, called the Rule Condition Editor Rule conditions are stored in a separate Extensible Markup Language (XML) file When a rule condition occurs in a workflow, the expression in a condition is evaluated and a Boolean value is returned => By creating a code condition - Refers to defining a condition directly in code A code condition can be created by writing a method in the code The method contains code for the condition and returns a Boolean value

Question 9

Which class is used to indicate Black Navigation Bar ?

Accepted Answer

.navbar-inverse is used to display in black color.

Question 10

What is the difference between int and int32 ?

Accepted Answer

There is no difference between int and int32 System Int is an alias name for SystemInt32 which is a Net Class

Question 11

What is C-Sharp (C#) and its advantages ?

Accepted Answer

C# is a type-safe, managed and object oriented language, which is compiled by Net framework for generating intermediate language (IL) Below are some of the features supported in C# - * Constructors and Destructors * Properties * Passing Parameters * Arrays * Main * XML Documentation and * Indexers Below are the advantages of C# - * Easy to learn * Object oriented * Component oriented * Part of NET framework

Question 12

What does a deadlock mean in DB2?

Accepted Answer

When two independent processes contend for the same resource or the resources reserved by one another, it is called a deadlock -911 and -913 are the SQLcode for a deadlock

Question 13

How is sign stored in a COMP field?

Accepted Answer

It is stored in the most significant bit Bit is ON if -ve, OFF if +ve

Question 14

What is the IDD in IDMS?

Accepted Answer

IDD is the Integrated Data Dictionary It contains information about the elements, record types, sets, maps and dialogues within the database

Question 15

What is the meaning of VSAM RETURN-CODE 28?

Accepted Answer

Out of space condition is raised

Question 16

Which among the following are not access Specifiers in C++?

Accepted Answer

Default is the access specifier in java not in C++

Question 17

Which of the following methods doesn't use sorting?

Accepted Answer

Using insertion we can perform insertion sort, using selection we can perform selection sort, using exchange we can perform the bubble sort.But by using deletion we cannot perform any sort.

Question 18

A binary tree with 7 nodes will have how many null branches?

Accepted Answer

A binary tree with n nodes has exactly n+1 null nodes

Question 19

What are the methods are available in storing sequential files?

Accepted Answer

ll the above listed methods are used in storing sequential files

Question 20

What could be the bucket size if collision and overlapping occur at same time?

Accepted Answer

One. If there is only one entry possible in the bucket, when the collision occurs, there is no way to accommodate the colliding value. This results in the overlapping of values

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