This document contains information about a final examination for a database systems course taken in June 2012. It has two sections - a multiple choice objective question section and a structured question section. The objective question section contains 40 questions testing various concepts related to databases. The structured question section contains two questions, one asking students to define terms, describe benefits of different database types, and answer questions related to sample tables provided. The second question asks students to perform relational algebra operations on sample tables and write SQL queries.

1. EXAMINATION AND EVALUATION DIVISION
DEPARTMENT OF POLYTECHNIC EDUCATION
(MINISTRY OF HIGHER EDUCATION)
INFORMATION & COMMUNICATION TECHNOLOGY (ICT)
DEPARTMENT
FINAL EXAMINATION
JUNE 2012 SESSION
FP304: DATABASE SYSTEM
DATE: 20 NOVEMBER 2012 (TUESDAY)
DURATION: 2 HOURS (8.30AM – 10.30AM)
This paper consists of FIFTEEN (15) pages including the front page.
Section A: Objective (40 questions – answer ALL)
Section B: Structure (2 questions – answer ALL).
CONFIDENTIAL
DO NOT OPEN THIS QUESTION PAPER UNTIL INSTRUCTED BY THE CHIEF INVIGILATOR
(The CLO stated is for reference only)

2. CONFIDENTIAL FP304 DATABASE SYSTEM
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SECTION A
OBJECTIVE QUESTIONS (50 marks)
INSTRUCTION:
This section consists of FORTY (40) objective questions. Answer ALL questions in the answer booklet.
1. Which of the following is NOT an application of database system in real life?
[CLO1]
A. Book a flight ticket.
B. Purchase using your money.
C. Study at Polytechnic
D. Buy cloth from supermarket.
2. Which of the following is NOT an example of desktop database? [CLO1]
A. Microsoft Access
B. Oracle
C. FoxPro
A. Paradox
An integrated collection of concepts for describing and manipulating data, relationship between data constraints on the data in organization.
3. The statement above refers to [CLO1]
A. Data Model
B. Record Based Data Model
C. Relational Data Model
D. Object Based Data Model
4. A database management system (DBMS) is a [CLO1]
A. collection of persistent data that can be shared and interrelated.
B. tool to monitor and improve database performance.
C. control mechanisms to prevent interference from simultaneous users and recover lost data after a failure.
D. software system used to create, maintain, and provide controlled access to a database.

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5. ___________ is a language and graphical tools to define entities, relationship, integrity constraints and authorization rights. [CLO1]
A. Transaction processing
B. Database definition
C. Database tuning
D. Application development
Data is represented as collections of records and relationships are represented by sets.
6. The statement above refers to [CLO1]
A. Network Data Model
B. Hierarchical Data Model
C. Physical Data Model
D. External Data Model
7. What type of model represents data as record types and also represents a limited type of one-to-many relationships? [CLO1]
A. Hierarchy model
B. Physical model
C. Network model
D. Relational model
8. Which of the following is TRUE about the types of integrity relational rule? [CLO1]
A. Entity integrity, Null and Domain integrity
B. Null, Entity integrity and Referentially integrity
C. Referentially integrity, Domain integrity and Null
D. Domain integrity, Entity integrity and Referentially integrity
9. The _________ is an Equijoin of the two relations R and S over all common attributes x. [CLO1]
A. Natural join
B. Left outer join
C. Full outer join
D. Right outer join

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10. What is the relation that would be produced by the above relational algebra statement? [CLO3]
A. Compute the natural join between the STUDENT and COURSE relations
B. Compute the left outer join between the STUDENT and COURSE relations
C. Compute the Set Difference between the STUDENT and COURSE relations
D. Compute the outer join between the STUDENT and COURSE relations
11. If relation A has 6 rows and 4 attributes and relation B has 3 rows and 2 attributes and the Cartesian product operation was carried out on relation A and relation B, what would be the degree of the new relation C where C = A X B? [CLO1]
A. 12
B. 24
C. 6
D. 18
12. A join that use the only comparison operator = is called ________.
[CLO1]
A. natural join
B. same join
C. equijoin
D. theta join
13. _______ constraint states that no primary key value can be null. [CLO1]
A. Key
B. Domain
C. Referential-integrity
D. Entity-integrity
STUDENT – COURSE

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Based on Figure 1, answer questions 14, 15 and 16.
Set A = { 11, 14 , 15 , 17 , 18 } Set B = { 12 , 16 , 18 , 20 }
Figure 1 : Venn Diagram
14. What are the values of X? [CLO3]
A. 12, 16, 20
B. 11, 14, 15, 17
C. 11,12, 15, 18
D. 11, 14, 15, 17, 18
15. What is the value of Y? [CLO3]
A. 14
B. 16
C. 12
D. 18
16. What are the values if ~ (A U B)? [CLO3]
A. 11, 12, 13, 14, 15, 16, 17, 19, 20
B. 11, 12, 13, 14, 15, 17, 18, 19, 20
C. 11, 12, 14, 15, 16, 17, 18, 20
D. 11, 12, 13, 14, 15, 19, 20
17. _______ is a SQL statement to get all the students from Kuala Terengganu sorted together. [CLO1]
A. Order By
B. Group By
C. Having
D. Sort
X
Y
Z
13, 19
A
B

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18. Which of the following is the CORRECT order of keywords for SQL SELECT statements? [CLO1]
A. SELECT, FROM, WHERE
B. FROM, WHERE, SELECT
C. WHERE, FROM, SELECT
D. SELECT,WHERE, FROM
19. The ________ qualifier must be included to remove duplicate rows from the results of an SQL SELECT statement. [CLO1]
A. ONLY
B. DISTINCT
C. UNIQUE
D. SINGLE
20. The command to eliminate the table from a database is______ [CLO1]
A. REMOVE TABLE CUSTOMER;
B. DROP TABLE CUSTOMER;
C. DELETE TABLE CUSTOMER;
D. UPDATE TABLE CUSTOMER;
21. What is the difference between the DELETE and DROP command?
[CLO1]
A. DELETE command will delete row(s) of a table while DROP command delete the structure and content (data) of the table.
B. DROP command will delete row(s) of a table while DELETE command delete the structure and content (data) of the table.
C. DELETE command will delete row(s) of a table while DROP command delete content (data) of the table.
D. DROP command will delete row(s) of a table while DELETE command delete content (data) of the table.

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22. What is the returned result from the following query?
[CLO3]
A. The customer_name and telephone of all customers.
B. The customer_name and telephone off all customers living in Kuantan, Kuala Terengganu or Kota Bharu.
C. The customer_name and telephone all customers living in Kuantan and Kuala Terengganu and Kota Bharu.
D. The customer_name of all customers living in Kuantan or Kuala Terengganu or Kota Bharu.
23. What does the following SQL statement do?
[CLO3]
A. Deletes all records from Customer table where the state is equal to Negeri Sembilan.
B. Deletes all records from Customer table where the state is not equal to Negeri Sembilan.
C. Deletes all records from the Customer table.
D. Delete the Customer table.
24. Which of the following can sort rows in SQL statement? [CLO1]
A. SORT BY
B. ALIGN BY
C. ORDER BY
D. GROUP BY
Select customer_name, telephone
from customers
where city in ('Kuantan', 'Kuala Terengganu', Kota Bharu');
Delete from Customer
where state = ‘Negeri Sembilan’

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25. Which of the following SQL statement is used to add email column into staff table? [CLO3]
A. ALTER TABLE STAFF
ADD email varchar(50);
B. ALTER TABLE STAFF
ADD COLUMN email varchar(50);
C. UPDATE TABLE STAFF
ADD email varchar(50);
D. UPDATE TABLE STAFF
ADD COLUMN email varchar(50);
26. SQL can be used to [CLO1]
i. create database structures.
ii. query database data.
iii. modify database data.
A. i, ii
B. i, iii
C. ii, iii
D. i, ii, iii
27. A sub query in SQL SELECT statement which enclosed in [CLO1]
A. braces -- {...}
B. CAPITAL LETTERS
C. parenthesis -- (...)
D. brackets -- [...]
28. A relation is in _______, if and only if, every determinant is a candidate key.
[CLO1]
A. Boyce-Codd Normal Form (BCNF)
B. First normal form (1NF)
C. Second normal form (2NF)
D. Third normal form (3NF)

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An attribute composed of a single component with an independent existence
29. The statement above refers to _____ [CLO1]
A. composite attribute
B. simple attribute
C. multivalued attribute
D. derived attribute
30. The process of organizing data to minimize redundancy is called
_____________. [CLO1]
A. Normalization
B. Logically design
C. Entity relationship
D. Database design
31. Three types of anomalies are [CLO1]
A. Insert, delete, update
B. Modification, update, delete
C. Delete, modification, insert
D. Insert, alter, delete
32. Which of the following database activities require a specific knowledge of a DBMS? [CLO1]
A. Enterprise modeling
B. Conceptual data modeling
C. Logical database design
D. Physical database design and definition
33. Whose role is it to determine the requirements and design for a database?
[CLO1]
A. Database analysts
B. Database administrators
C. Database programmer
D. Database designer

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34. In the Database System Lifecycle, ______________ is the process of monitoring and maintaining the system following installation. [CLO1]
A. operational maintenance
B. database design
C. implementation
D. testing
Figure 2 : ERD
35. Figure 2 refers to _______ [CLO1]
A. Unary relationship
B. Binary relationship
C. Ternary relationship
D. Quarternary relationship
36. ______________ is a series of actions to be taken on the database so that either all actions are completed successfully, or none of them can be completed.
[CLO2]
A. Checkpoint
B. Log
C. Lock
D. Transaction
solicitor
bid
financial
buyer
arranges

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37. If several concurrent transactions are executed over the same data set and the second transaction updates the database before the first transaction is finished, the ____ property is violated and the database is no longer consistent. [CLO2]
A. atomicity
B. consistency
C. isolation
D. durability
38. Which of the following is not a property of transactions? [CLO2]
A. Atomicity
B. Concurrency
C. Isolation
D. Durability
39. A transaction will ends when it is ___________________. [CLO2]
A. committed
B. rolledback
C. committed or Rolledback
D. ended
40. ____________ is the situation that occurs when a user’s changes to the database are lost by a second user’s changes to the database. [ CLO2 ]
A. Concurrent update problem
B. Deadly embrace problem
C. Inconsistent read problem
D. Deadlock problem

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SECTION B
STRUCTURED QUESTIONS (50 marks)
INSTRUCTION:
This section consists of TWO (2) structured questions. Answer ALL questions.
QUESTION 1
a) Define the following :
i. Procedural language interface
ii. Database Management System [CLO1]
(4 Marks)
b) What is metadata and how does it relate to the definition of the database?
[CLO1] (2 Marks)
c) Describe TWO (2) benefits of using Desktop Database and Server Database.
[CLO1] (4 Marks)
d) Based on the Table 1, answer questions i to v.
Table 1: Details of Student
Student sid sname sstate advisor courseID
F2001
Suria Hani Adlin
Terengganu
Halim
DNS
F2002
Lee May Ling
Melaka
Hakimi
DIP
F2004
Hazif Ishak
Terengganu
Halim
DNS
F2006
Adzreen Aiman
Kelantan
Haryani
DIP
F2008
Chan Kee Meng
Perak
Haryani
DIP
F2010
Raju a/l Kumar
Selangor
Hatyani
DIP

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i. What is the degree of the table? [CLO1] (1 mark)
ii. List the attributes of the table. [CLO1] (2 marks)
iii. What is the cardinality of the table? [CLO1] (1 mark)
iv. Write the relation scheme for the table [CLO1] (2 Marks)
v. What is the output for the equation below? [CLO1] (3 Marks)
e) Based on Table 2, generate the output for operation below. [CLO1] (6 Marks)
Table 2: Details of Student1, Student2 and Subject
Student1 stuID stuName
S007
Ahmad
S009
Umair
S010
Siti
Student2 stuID stuName
S003
Kaisah
S005
Qistina
S007
Ahmad
S009
Umair
S011
Balqis
S013
Haziq
Пsid, sname, advisor (σcourseID = ‘DIP’)(STUDENT)

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Subject subjectID subjectName creditHours
FP304
Database Systems
3
FP305
Data Structure
3
i. Student1 Ω student2 (1 mark)
ii. Student2 – student1 (2 marks)
iii. Student1 X subject (3 marks)
QUESTION 2
a) Write the SQL command for the following statements. [CLO3]
i. To create JTMK database (1 mark)
ii. To select all columns from a table named "STUDENT" (2 marks)
iii. Select all records from a table named "STUDENT" where the value of the column "FirstName" is "Rahman" (3 marks)
iv. Select all records from a table named "STUDENT" where the value of the column "FirstName" starts with an "a" (3 marks)
b) Based on the situation below, draw ER diagram to represent the data requirements for the company (10 marks) [CLO1]

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c) What is transaction? [CLO2] (2 marks)
d) Explain FOUR (4) properties of transaction. [CLO2] (4 marks)
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