Datatype, MySQL

Question: Which of the following MySQL attribute group is not correct?
A
binary,default,index

B
national,not null,null

C
primary key,unique,zerofill

D
auto_increment, varchar, int

Note: Not available
1. Report
Question: Enum values are stored accodring to their index numbers
A
True

B
False

Note: Not available
1. Report
Question: BLOB data type can have default column value.
A
True

B
False

Note: Not available
1. Report
Question: How much storage space does DATETIME require?
A
4 bytes

B
2 bytes

C
8 bytes

D
1 byte

Note: Not available
1. Report
Question: If an ENUM column is declared NOT NULL, its default value is the first element of the list of allowed values.
A
True

B
False, ENUM column cannot be null

C
False, its default value is the last element of the list of allowed values

D
True , ENUM column cannot be null

Note: Not available
1. Report

Question: Which of the following MySQL attribute group is not correct?