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INF2603 EXAM PACK 2025 {DETAILED QUESTIONS AND ANSWERS }
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INF2603 EXAM PACK 2025 {DETAILED QUESTIONS AND ANSWERS }
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lOMoAR cPSD| 47715245Downloaded by palmer kamulee (kamuleepalmer@gmail.com)
, lOMoAR cPSD| 47715245
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.
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3. Please answer the questions in the order in 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):
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1. The _____ is actually a system-created database whose
tables store the user/designer-created database
characteristics and contents.
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
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