Answer the following qustions about fixed-length and variable-length records: What is the primary difference between fixed-...

Answer the following qustions about fixed-length and variable-length records:

What is the primary difference between fixed- and variable-length records?
What happens if a data element is smaller than the fixed-length of the respective field?
What happens if a data element is larger than the fixed-length of the respective field?

Expert Solution

Hi, I would love to answer you with these questions. I hope you will like an answer and get a clear idea related to the same. So not wasting the time let's head towards the answers.

Ans.A What is the primary difference between fixed- and variable-length records?

Fixed-length records :

Al the records available in the file are of the same size.
This leads to the wastage of the memory
Accessing to the records is easier and faster
Location of the record can be easily and exactly determined

Variable-length records :

The different records in the file are of different sizes
This does not lead to the memory wastage as in the fixed-length records
The accessing of the records is slower as compared to that of the fixed-length records
When multiple records are to be stored in a file this is used

Ans.B What happens if a data element is smaller than the fixed-length of the respective field?

If the data element is smaller than the fixed-length in the respective fields than the data element will be stored by padding up the left length.

Ans.C What happens if a data element is larger than the fixed-length of the respective field?

If the data length is larger than the larger-length in the respective field then it cannot be stored in the respective field as the length is needed to be fixed of every element and the larger would not be accepted and for this the variable length record would be preferred.

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venereology answered 1 year ago

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