Question Detail

Allocation map

Used to store program data
specifies which blocks are used by which file
is updated by application programs
allow programs to erase files

Answer: Option B

Similar Questions :

1. Natural join can be related with

Function dependency
B tree
Domain calculus
Relational algebric operators

Answer: Option D

2. In order to use a DBMS, it is important to understand

the physical schema
all subschemas
one sub schema
none of above

Answer: Option C

3. Related fields in a data base are grouped to form

data file
data record
menu
bank

Answer: Option B

4. Allocation map

Used to store program data
specifies which blocks are used by which file
is updated by application programs
allow programs to erase files

Answer: Option B

5. File record length

should always be fixed
should always be variable
should be chosen to match the data character
depends upon the size of file

Answer: Option D

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