Interview Questions

Q:

What is Pareto Analysis?

Answer

Pareto analysis is otherwise known as the 80/20 rule. It stipulates that 80%of problems will arise from 20% of causes – that few factors can create big problems.


 

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Q:

Why an infocube has maximum of 16 dimensions?

Answer

Because any Database will supports only 16 foreign keys in a database table. 


It depends upon the Database limits provided to define the Foreign key constraint, e.g. in Sql Server 2005, the recommended max limit for foreign keys is 253, but you can define more.

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Q:

What are Number Functions in SQL?

Answer

- ABS(number)

Returns the absolute positive value of an expression.
Syntax:
ABS(expression)
Example:
SELECT ABS(-1.0), ABS(0.0), ABS(1.0)
Output:
1.0    .0    1.0

- CEIL(number)

Returns the smallest integer greater than, or equal to, the specified numeric expression.
Syntax:
CEILING(expression)
Example:
SELECT CEILING($223.45), CEILING($-223.45), CEILING($0.0)
Output:
224.00    -223.00        0.00

- FLOOR(number)

Returns the largest integer less than, or equal to, the specified numeric expression.
Syntax:
FLOOR(expression)
Example:
SELECT FLOOR($223.45), CEILING($-223.45), CEILING($0.0)
Output:
223.00      -224.00        0.00

- MOD(number, divisor)

Returns the remainder of the division from 2 integer values.
Syntax:
MOD(dividend, divisor)
Example:
SELECT MOD(20,3)
Output:
2

- POWER(number, power)

Returns the exponential value for the numeric expression.
Syntax:
POWER(number, power)
Example:
SELECT POWER(2.0, 3.0)
Output:
8.0

- SIGN(number)

Returns the sign i.e. positive or negative value for the numeric expression. It returns -1 for negative expressions, a value of 0 for zero
Syntax:
SIGN(number)
Example:
SELECT SIGN(4)
Output:
1

- ROUND(number, precision)

Returns the numeric value rounded off to the next value specified.
Syntax:
ROUND(number, number of places)
Example:
SELECT ROUND(1.3456, 2)

- SQRT(number)

Returns the square root value of the expression.
Syntax:
SQRT(number)
Example:
SELECT SQRT(4.0)
Output:
2.0

- TRUNC(number, precision)

Returns a numeric value that truncate to the specific places
Syntax:
TRUNCATE(number,places)
Example:
SELECT TRUNCATE(1.3456, 2)
Output:
1.34

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Subject: Oracle

0 1869
Q:

List out few of the applications that make use of Multilinked Structures?

Answer

Sparse matrix,


Index generation

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Subject: Technology

1 1866
Q:

What does Customer Satisfaction mean to you?

Answer

Customer Satisfaction means, dealing with the customer in a proper or positive way. Every individual mindset is  different so their cause and satisfactory leave also changed. So the main challenge of a worker of a call center is to make them understand that they are also concerned about their trouble.

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Subject: Call Center

3 1865
Q:

What is the difference between the communication and transmission

Answer

Transmission is a physical movement of information and concern issues like bit polarity, synchronization, clock etc.


Communication means the meaning full exchange of information between two communication media

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0 1865
Q:

What are JavaScript types?

Answer

Number, String, Boolean, Function, Object, Null, Undefined.

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Subject: Web Technology

0 1862
Q:

How to get last modified date of a file?

Answer

long lastModified();


we can give this return value to a date object and we can get data to be displayed.

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Subject: Java

0 1859