Interview Questions

Q:

Difference between a query and a statement in SQL?

Answer

An SQL statement is a string of characters that conforms to the syntax and format specified in the international standard.


A query is a statement that returns a record-set.

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Subject: SQL

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Q:

What CICS command do you need to obtain the user logon-id?

Answer

You must code EXEC CICS ASSIGN with the OPENID option.


 

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Q:

What is the difference between UNION and UNION ALL?

Answer

UNION selects only distinct values whereas UNION ALL selects all values and not just distinct ones

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Subject: SQL

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Q:

What does Earned Income Tax Credit (EITC) means ?

Answer

The United States Federal Earned Income Tax Credit (EITC) is a refundable tax credit, that helps low and medium - income individuals and couples, primarily for those who have qualifying children. 

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Subject: Bank Interview Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

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Q:

Warning implicit declaration of function?

Answer

Function: A Function is a block of statement which perform some operation.



Declaring the function before using the function in program is known as implicit declaration of the function.



For Example::


int bar(void); // function (forward) declaration



int main(void) {


bar(); // bar was declared, the compiler has all the info


return foo(123); // foo not yet known; impl. decl. warning


}



// not previously declared function definition


int foo(int a) {


return a;



// previously declared function definition


int bar() {


return 321;


}

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Subject: Java
Job Role: IT Trainer , Analyst

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Q:

What is mesh network?

Answer

A network in which there are multiple network links between computers to provide multiple paths for data to travel.

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Subject: Network Administration
Job Role: IT Trainer

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Q:

What exactly do you mean by UDP?

Answer

UDP (User Datagram Protocol) is a communications protocol that offers a limited amount of service when messages are exchanged between computers in a network that uses the Internet Protocol (IP).

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Q:

What is XML Namespace?

Answer

An XSL sheet or a document may have duplicate elements and attributes. Therefore, the XML namespaces define a way to distinguish between duplicate element types and attribute names.


An XML namespace is a collection of element type and attribute names. It is a URI due to which any element type or attribute name in an XML namespace can be uniquely identified. 


It consists of two parts : the name of the XML namespace and the local name.


e.g.: xmlns: h=”https://www.abc.com”


After this, you can write


<h:table>


……..


</h:table>


to associate the table with the declared namespace. 

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Subject: Web Technology

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