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 Technology Questions

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Q:

How would you resolve an ASRA abend?

Answer

In COBOL II start with CEBR, and get the offset/instruction.

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Subject: Mainframe Interview

0 4715
Q:

Explain Superglobal variables in PHP .

Answer

To access the global data which is originating externally, the super globals are used. The superglobals are available as arrays. These superglobals represents the data from URLs, HTML forms, cookies, sessions and also the web server. For this purpose, $HTTP_GET_VARS, $HTTP_POST_VARS are used. The super globals are pretty good enough to be used in functions. The following are the list of super globals.


$_GET, $_POST, $_COOKIE;$_REQUEST, $_SERVER, $_SESSION, $_ENV, $_FILE


Another PHP Superglobal, called $GLOBALS; is available for persisting every variable with global scope.

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Subject: PHP

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Q:

What are the two types of fields available in IMS DB?

Answer

Key Fields - (PROCOPT=K)


- Used to sequence the database and can't be changed


- It is the field within a segment, used to identify the occurrence of the segment


- Used to maintain the IMS segments in ascending sequence.


 


Search Fields - (PROCOPT=G)


- Used to search for a segment, without the segment being sequenced on that field


- A segment need not have a key or search field.


 


Both types of fields can be used to search the database.

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Subject: Mainframe Interview

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Q:

What operator tests column for the absence of data?

A) NOT operator B) IS NULL operator
C) EXISTS operator D) All of the above
 
Answer & Explanation Answer: B) IS NULL operator

Explanation:

SELECT "column_name"


FROM "table_name"


WHERE "column_name" IS NULL.

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Filed Under: SQL
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Database Administration , IT Trainer , Project Manager

1 4682
Q:

How can you make sure the web application is fit for release ?

Answer


1. We can operate majority of test cases, but importantly we can make use testing techniques such as Pair-wise testing to reduce combinations, and/or model based testing to plan user journeys to ensure major functionality of web application works or not.


2. We can also use analytics to get insight into what users do on the website, which page is most popular and which feature is most used by the users.



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Subject: Web Technology

9 4655
Q:

Why interface data is public?

Answer

to access non-public data outside class getter methods be defined but we cannot define a  method inside interface we can declared a method inside interface.

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Subject: Java

0 4652
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

11 4648
Q:

Convert the expression ((A + B) * C – (D – E) ^ (F + G)) to equivalent  Postfix notations.

A) AC + B * DE - FG +^- B) AB + C * DE - FG + ^-
C) AC + B* DE - FG -+ ^ D) AB + C * DE - FG -+ ^
 
Answer & Explanation Answer: B) AB + C * DE - FG + ^-

Explanation:
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Filed Under: Java

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