PU E
SHI
NG Y L E NC
OU TO THE GATE OF EXC EL
Education is the most powerful weapon which you can use to change the world
,WARNING: PLEASE NOTE THAT PLAGIARISM IS A SERIOUS ACADEMIC
OFFENSE, therefore students must use this document ONLY as a guideline. Hence
students have regenerated their own (personalized) solutions paying particular
attention to module contents as prescribed by module facilitators, lecturers and
supervisors. This document’s purpose is to compact all sources of information that
might be relevant to students’ assignments, hence additional knowledge on the
provided information is not restricted by the authors. However, submitting this
document as one’s final work is considered unethical, and students should be
penalized. If this document is plagiarized by the users and fails, EXCELGATE should
not be rendered accountable since the contents in this document only give learners a
kick-start on what is expected of them from their areas of specialty.
CAUTION: STUDENTS ARE NOT MANDATED TO USE EVERY DETAIL IN THIS
DOCUMENT IN WRITING THEIR ASSIGNMENTS
Education is the most powerful weapon which you can use to change the world
, 8/4/25, 5:16 AM Assessment 6: Attempt review
UNISA 2025 INF2603-25-Y Welcome Message Assessment 6
QUIZ
Started on Monday, 4 August 2025, 5:04 AM
State Finished
Completed on Monday, 4 August 2025, 5:16 AM
Time taken 12 mins 19 secs
Grade 14.00 out of 15.00 (93.33%)
Question 1
Incorrect
Mark 0.00 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
The correct answer is: security compliant
Question 2
Correct
Mark 1.00 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
The correct answer is: natural identifier
https://mymodules.dtls.unisa.ac.za/mod/quiz/review.php?attempt=28485884&cmid=1084360 1/5
SHI
NG Y L E NC
OU TO THE GATE OF EXC EL
Education is the most powerful weapon which you can use to change the world
,WARNING: PLEASE NOTE THAT PLAGIARISM IS A SERIOUS ACADEMIC
OFFENSE, therefore students must use this document ONLY as a guideline. Hence
students have regenerated their own (personalized) solutions paying particular
attention to module contents as prescribed by module facilitators, lecturers and
supervisors. This document’s purpose is to compact all sources of information that
might be relevant to students’ assignments, hence additional knowledge on the
provided information is not restricted by the authors. However, submitting this
document as one’s final work is considered unethical, and students should be
penalized. If this document is plagiarized by the users and fails, EXCELGATE should
not be rendered accountable since the contents in this document only give learners a
kick-start on what is expected of them from their areas of specialty.
CAUTION: STUDENTS ARE NOT MANDATED TO USE EVERY DETAIL IN THIS
DOCUMENT IN WRITING THEIR ASSIGNMENTS
Education is the most powerful weapon which you can use to change the world
, 8/4/25, 5:16 AM Assessment 6: Attempt review
UNISA 2025 INF2603-25-Y Welcome Message Assessment 6
QUIZ
Started on Monday, 4 August 2025, 5:04 AM
State Finished
Completed on Monday, 4 August 2025, 5:16 AM
Time taken 12 mins 19 secs
Grade 14.00 out of 15.00 (93.33%)
Question 1
Incorrect
Mark 0.00 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
The correct answer is: security compliant
Question 2
Correct
Mark 1.00 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
The correct answer is: natural identifier
https://mymodules.dtls.unisa.ac.za/mod/quiz/review.php?attempt=28485884&cmid=1084360 1/5
