lOMoARcPSD|51776212
INF2603 EXAM
2025 UPDATED QUESTIONS AND
ANSWERS.RECENT WITH MANY MORE
QUESTIONS TO STUDY ,WELL
EXPLAINED ANSWERS. WITH THE
CURRENT EXAM TOPICS ,SUMMARIES
AND
NOTES.2024,2023,2022,2021,2020………
summaries
Excellence Through Knowledge
A+ CONCEPTS
, lOMoARcPSD|51776212
UNIVERSITY EXAMINATIONS
OCTOBER/NOVEMBER 2023
INF2603
Database 1
100 Marks
Duration 2 Hours
EXAMINERS:
FIRST: Mr ME Bogopa
SECOND: Ms CL Hlengwa
This paper consists of 5 pages.
Instructions:
1. Answer all questions.
2. The marks for each question are given in
brackets next to the question.
3. Please answer the questions in the order in
, lOMoARcPSD|51776212
which they have been set.
4. You signed an Honesty Declaration. This
means you will complete this paper on your
own and without help.
5. This final pdf document should not be
password protected.
6. Convert all the pages into a single PDF file.
7. Poorly scanned and hard to read answer files
will result in a zero mark.
8. Once your document meets all the criteria,
then you can upload the file to myAdmin.
GOOD LUCK.
QUESTION 1 [20 marks]
Carefully select the most correct answer to each of the
following questions. Please write down only the
question number and corresponding to it put the
correct option’s number (e.g. Qu. 11. (e)) (2 marks
each):
1. The _____ is actually a system-created database
whose tables store the user/designer-created
database characteristics and contents.
, lOMoARcPSD|51776212
a. unique index
b. database tuple
c. system catalogue
d. systematic database
2. Within the relational model, tables are known as ____,
columns of tables are referred to as ____ and rows of
tables are called ____.
a. tuples, attributes, entities
b. relations, attributes, tuples
c. relations, tuples, attributes
d. relation, attributes, tuples
3. Which of the following returns all tuples in one relation
that are not found in the other relation?
a. PRODUCT
b. SELECT
c. PROJECT
d. DIFFERENCE
4. The STUDENT table’s primary key is
STUDENT_NUMB. The STUDENT primary key
column has no null entries, and all entries are unique.
This is an example of _____ integrity.
a. null
b. entity
c. relational
d. referential
5. Which of the following is true of NoSQL databases?
INF2603 EXAM
2025 UPDATED QUESTIONS AND
ANSWERS.RECENT WITH MANY MORE
QUESTIONS TO STUDY ,WELL
EXPLAINED ANSWERS. WITH THE
CURRENT EXAM TOPICS ,SUMMARIES
AND
NOTES.2024,2023,2022,2021,2020………
summaries
Excellence Through Knowledge
A+ CONCEPTS
, lOMoARcPSD|51776212
UNIVERSITY EXAMINATIONS
OCTOBER/NOVEMBER 2023
INF2603
Database 1
100 Marks
Duration 2 Hours
EXAMINERS:
FIRST: Mr ME Bogopa
SECOND: Ms CL Hlengwa
This paper consists of 5 pages.
Instructions:
1. Answer all questions.
2. The marks for each question are given in
brackets next to the question.
3. Please answer the questions in the order in
, lOMoARcPSD|51776212
which they have been set.
4. You signed an Honesty Declaration. This
means you will complete this paper on your
own and without help.
5. This final pdf document should not be
password protected.
6. Convert all the pages into a single PDF file.
7. Poorly scanned and hard to read answer files
will result in a zero mark.
8. Once your document meets all the criteria,
then you can upload the file to myAdmin.
GOOD LUCK.
QUESTION 1 [20 marks]
Carefully select the most correct answer to each of the
following questions. Please write down only the
question number and corresponding to it put the
correct option’s number (e.g. Qu. 11. (e)) (2 marks
each):
1. The _____ is actually a system-created database
whose tables store the user/designer-created
database characteristics and contents.
, lOMoARcPSD|51776212
a. unique index
b. database tuple
c. system catalogue
d. systematic database
2. Within the relational model, tables are known as ____,
columns of tables are referred to as ____ and rows of
tables are called ____.
a. tuples, attributes, entities
b. relations, attributes, tuples
c. relations, tuples, attributes
d. relation, attributes, tuples
3. Which of the following returns all tuples in one relation
that are not found in the other relation?
a. PRODUCT
b. SELECT
c. PROJECT
d. DIFFERENCE
4. The STUDENT table’s primary key is
STUDENT_NUMB. The STUDENT primary key
column has no null entries, and all entries are unique.
This is an example of _____ integrity.
a. null
b. entity
c. relational
d. referential
5. Which of the following is true of NoSQL databases?
