WorksheetsDB-Quiz1
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Is a primary key a unique key?
a)
yes
b)
no
2.
Can a table have multiple primary keys?
a)
yes
b)
no
3.
Is a weak entity dependent on another entity?
a)
Yes
b)
No
4.
Are entities represented by circles in an ER diagram?
a)
Yes
b)
No
5.
Is a DBMS used to manage databases?
a)
Yes
b)
No
6.
Is MySQL a commercial DBMS?
a)
Yes
b)
No
7.
Does a DBMS ensure the ACID properties of transactions?
a)
Yes
b)
No
8.
Are NoSQL databases always relational?
a)
Yes
b)
No
9.
Is SQL injection a security vulnerability?
a)
Yes
b)
No
10.
Is data mining used to analyze data?
a)
Yes
b)
No
100 %
