Answer to Question #211776 in Programming & Computer Science for Jaguar

Question

QUESTION 28

Which one of the following statements is NOT true regarding hashing methods for file 

searching?

1. In modulo division hashing, the key is divided by the file size and the remainder plus one is 

used for the address of the record.

2. In digit extraction hashing, selected digits are extracted from the key and used as the 

address of the record.

3. In direct hashing, no algorithmic manipulation is done, so the file must contain a record for 

each possible key.

4. Modulo division hashing guarantees no collisions or synonyms.

QUESTION 29

In file processing, collision occurs when…

1. ...the file is not big enough to hold all the data records.

2. …two files are open in memory at the same time.

3. …the data in the file contains two synonyms, i.e. two keys collide at the home address.

4. …the prime area is inaccessible.

Answer 1

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