File Organization Quiz

Which file organisation stores records in the order they arrive?

• Sequential

• Serial

• Direct access

• Hashing

Which file organisation is best when quick searching by ID is needed?

• Serial

• Sequential

• Direct access

• None of the above

A sequential file allows faster searching than a direct access file.

• True

• False

What is the main problem in hashing?

• Too much memory

• Collisions

• Slow processing

• Data duplication

Which method is best for transaction logs in a bank?

• Serial

• Sequential

• Direct access

• Hashing

Which of the following reduces collisions in hashing?

• Using a prime number for table size

• Using small table size

• Duplicating records

• Deleting data

When deleting in a serial file, what usually happens?

• The record is removed immediately

• The record is marked as 'deleted'

• The entire file is erased

• Nothing changes

In direct access with indexing:

• You must read the whole file

• You use an index table with pointers

• Records are always sequential

• Collisions always happen

What happens if ID 1077 and ID 5077 both hash to the same slot?

• They are deleted

• A collision occurs

• They overwrite each other

• No problem occurs

Binary files store data in human-readable text form.

• True

• False