Interview Questions

Q:

How many items are presented in the associate container?

A) 2 B) 3
C) 4 D) 5
 
Answer & Explanation Answer: D) 5

Explanation:

There are 5 items presented in the associate container. They are set, multiset, map, multimap and bitset.

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Filed Under: C++

1 3880
Q:

Classify the Hashing Functions based on the various methods by which the key value is found.

Answer

Direct method,


 Subtraction method,


 Modulo-Division method,


 Digit-Extraction method,


 Mid-Square method,


 Folding method,


Pseudo-random method

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Subject: Technology

5 3874
Q:

What is DocumentDB ?

Answer

DocumentDB is a NoSQL document-oriented database and records saves in key-value pairs. It's same as the other NoSQL document-oriented such as MongoDB.

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Subject: Oracle
Job Role: Analyst , IT Trainer

3 3867
Q:

Where does the exception are handled?

A) inside the program B) outside the regular code
C) both a & b D) none of these
 
Answer & Explanation Answer: B) outside the regular code

Explanation:
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Q:

What is a template?

A) A template is a formula for creating a generic class B) A template is used to manipulate the class
C) A template is used for creating the attributes D) none of the mentioned
 
Answer & Explanation Answer: A) A template is a formula for creating a generic class

Explanation:
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Q:

What is REORG? When it is used?

Answer

REORG reorganizes data on physical storage to reclutser rows, positioning overflowed rows in their proper sequence, to reclaim space, to restore free space. It is used after heavy updates, inserts and delete activity and after segments of a segmented tablespace have become fragmented.

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Q:

Differentiate between realloc() and free().

Answer

- Free() - A block of memory previously allocated by the malloc subroutine is freed by free subroutine. Undefined results come out if the Pointer parameter is not a valid pointer. If the Pointer parameter is a null value, no action will take place.


- Realloc() - This subroutine changes the size of the block of memory pointed to by the Pointer parameter to the number of bytes specified by the Size parameter and returns a new pointer to the block. The pointer specified by the Pointer parameter must be created with the malloc, calloc, or realloc subroutines and should not be deallocated with the free or realloc subroutines. Undefined results show up if the Pointer parameter is not a valid pointer.

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Subject: C++

0 3847
Q:

What Payroll Forms Are You Familiar With?

Answer

Payroll administrators must understand the function and proper usage of various payroll forms. Forms related to payroll include personal data forms, overtime or absence approval forms, expense reimbursement forms and time sheets.

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