Elite Academic Institute 068 053 513 262 1185
ademic In
Ac sti
te
tu
Eli
te
he
de
W
re a
G ra eM
d u a te s Ar
Educating the world for a better change
,8/4/25, 5:16 AM Assessment 6 (page 1 of 15)
UNISA 2025 INF2603-25-Y Welcome Message Assessment 6
QUIZ
Time left 0:12:52
Question 1
Answer saved
Marked out of 1.00
The "____" characteristic of a primary key states the following:
The selected primary key must not be composed of any attribute(s) that might be considered a security risk or violation. For
example, using a Social Security number as a PK in an EMPLOYEE table is not a good idea.
a. unique values
b. nonintelligent
c. preferably single-attribute
d. security compliant
Clear my choice
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=28485884&cmid=1084360 1/1
, 8/4/25, 5:16 AM Assessment 6 (page 2 of 15)
UNISA 2025 INF2603-25-Y Welcome Message Assessment 6
QUIZ
Time left 0:12:57
Question 2
Answer saved
Marked out of 1.00
If one exists, a data modeler uses a ____ as the primary key of the entity being modeled.
a. foreign key
b. combination key
c. surrogate key
d. natural identifier
Clear my choice
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=28485884&cmid=1084360&page=1 1/1
ademic In
Ac sti
te
tu
Eli
te
he
de
W
re a
G ra eM
d u a te s Ar
Educating the world for a better change
,8/4/25, 5:16 AM Assessment 6 (page 1 of 15)
UNISA 2025 INF2603-25-Y Welcome Message Assessment 6
QUIZ
Time left 0:12:52
Question 1
Answer saved
Marked out of 1.00
The "____" characteristic of a primary key states the following:
The selected primary key must not be composed of any attribute(s) that might be considered a security risk or violation. For
example, using a Social Security number as a PK in an EMPLOYEE table is not a good idea.
a. unique values
b. nonintelligent
c. preferably single-attribute
d. security compliant
Clear my choice
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=28485884&cmid=1084360 1/1
, 8/4/25, 5:16 AM Assessment 6 (page 2 of 15)
UNISA 2025 INF2603-25-Y Welcome Message Assessment 6
QUIZ
Time left 0:12:57
Question 2
Answer saved
Marked out of 1.00
If one exists, a data modeler uses a ____ as the primary key of the entity being modeled.
a. foreign key
b. combination key
c. surrogate key
d. natural identifier
Clear my choice
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=28485884&cmid=1084360&page=1 1/1
