Question 1

How do you handle errors in CICS programs?

Accepted Answer

Check EIBRESP after the call or use the HANDLE condition

Question 2

How can you have different number of cells for each row of a table?

Accepted Answer

By setting the columnSpan property for cells of each row as required

Question 3

What is IUnknown and what are its three parts?

Accepted Answer

IUnknown as an interface of a COM object Every COM object has to support IUnknown, besides optionally adding other interfaces IUnknown is made of QueryInterface, AddRef and Release

Question 4

Explain When is Marshalling not necessary?

Accepted Answer

Marshalling is the process of packaging and sending interface method parameters across thread, process or machine boundaries It is not necessary when the client and the server are on the same computer

Question 5

Define and explain COM?

Accepted Answer

COM is the component Object Model is a system whch creates application which are binary form that is language independent , object oriented ,modular and reusable

Question 6

What are the three file types in NT ?

Accepted Answer

NTFS, FAT & FAT 32 are the file systems of NT

Question 7

Does VB Supports OOPS Concepts?

Accepted Answer

Visual Basic is not support Inheritance and Data binding OOPS Concept

Question 8

Can I call an XLM macro from within Excel VB?

Accepted Answer

With the help of Excel App instance we can execute a Macro in VB code EXcelAppInstanceApplicationRun("MacroName")

Question 9

Difference between DDE and OLE?

Accepted Answer

DDE (Dynamic Data Exchange) a communication protocol that let applications call each other OLE was the first protocol that enabled users and programmers to create compound documents?that is documents that contain data from different applications (for example an Excel worksheet inside a Word document)

Question 10

What are the different ways to Declare and Instantiate an object in Visual Basic 6?

Accepted Answer

Dim obj as OBJCLASS with eitherSet obj = New OBJCLASS orSet obj = CreateObject(OBJCLASS?) orSet obj = GetObject( , OBJCLASS?)orDim obj as New OBJCLASS

Question 11

How can visual basic be used for server side scripting?

Accepted Answer

Visual basic can be used for server side scripting A component designed with Visual basic will not have any user interface instead provides the functionality of Active X to other programs via COM This form of technique allows server side functionality and add in module

Question 12

What are the rules which should be followed while naming a variable in VB?

Accepted Answer

Some of the rules which should be followed while naming a variable in VB are as follows: 1) Characters should be less than 255 2) Space between characters should be allowed 3) A variable should begin with a number 4) Period may not be permitted

Question 13

Explain about creating VB applications in excel ?

Accepted Answer

User defined functions can be created into the Microsoft spreadsheet Spreadsheets can be customized according to the user needs by using VB applications To create visual basic functions useful for spreadsheet you need to click Tools and select Macros where you will need to click on Visual basic editor

Question 14

How To Open Outlook Explorer in VB Code?

Accepted Answer

Once can use the Shell function to call any Aplication in VB 60 For Outlook Express one can use, Shell (msimnexe)

Question 15

When are you supposed to use endif to end the conditional statement?

Accepted Answer

When the original if was followed by : and then the code block without braces

Question 16

What’s the difference between accessing a class method via -> and via ::?

Accepted Answer

:: is allowed to access methods that can perform static operations, ie those, which do not require object initialization

Question 17

So if md5( ) generates the most secure hash, why would you ever use the less secure crc32( ) and sha1( )?

Accepted Answer

Crypto usage in PHP is simple, but that doesn’t mean it’s free First off, depending on the data that you’re encrypting, you might have reasons to store a 32-bit value in the database instead of the 160-bit value to save on space Second, the more secure the crypto is, the longer is the computation time to deliver the hash value A high volume site might be significantly slowed down, if frequent md5() generation is required

Question 18

Would I use print "$a dollars" or "{$a} dollars" to print out the amount of dollars in this example?

Accepted Answer

In this example it wouldn’t matter, since the variable is all by itself, but if you were to print something like "{$a},000,000 mln dollars", then you definitely need to use the braces

Question 19

How do I find out the number of parameters passed into function?

Accepted Answer

func_num_args() function returns the number of parameters passed in

Question 20

What does a special set of tags do in PHP?

Accepted Answer

The output is displayed directly to the browser

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