VU CS-403 Online Test Preparation

MCQ's Test For CS-403 Final Term Exams Preparation Virtual University

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CS-403 Final Term Exams Preparation Virtual University

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Question # 1

Which of the following is INCORRECT with respect to file systems?

Question # 2

Consider two sets A and B. A contains 2 elements and B contains 3. How many elements do their cartesian product contains?

Question # 3

Identify the correct statement

Question # 4

Which of the following is NOT a component of a DFD? Select correct option:

Question # 5

Who is responsible for authorizing access to the database, for coordinating and monitoring its use ?

Question # 6

Identify the advantage of DELETE command over TRUNCATE.

Question # 7

Which of the following is not true with respect to denormalization ?

Question # 8

The ____ constraint specifies whether each entity supertype occurrence must also be a member of at least one subtype.

Question # 9

GRANT SELECT, UPDATE(Designation) ON Employee TO Amali,Hiruni WITH GRANT OPTION; What does this SQL statement do?

Question # 10

Which of the following concepts is applicable with respect to 3NF?

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Virtual University CS-403 Chapter 1 Important MCQ's

Sr.# Question Answer
1 Each course section is assigned a particular faculty member, and each course section corresponds to a particular course. Conceptually, what is the relationship between faculty and course (not course section).
A. 1:1
B. 1:M
C. M:M
D. Ternary
2 A relation (from the relational database model) consists of a set of tuples, which implies that
A. all tuples in a relation must be distinct.
B. relational model supports multi-valued attributes whose values can be represented in sets
C. for any two tuples, the values associated with all of their attributes may be the same
D. all tuples in a particular relation may have different attributes.
3 Which of the following SQL keywords is not used with DDL statements?
A. Table
B. Update
C. Create
D. Alter
4 Which of the following is not true about relational tables?
A. Column values are of the same kind
B. Each row is unique
C. Each column must have a unique name.
D. The sequence of rows is significant.
5 Identify the operation which is NOT one of the parts of the five basic set operations in relational algebra?
A. Join
B. Union
C. Cartesian Product
D. Set Difference
6 The information regarding ‘views’ and ‘Integrity constraints’ are found in
A. Both Data Dictionary and System Catalog
B. System Catalog
C. Data Dictionary
D. Indexes
7 Who is responsible for authorizing access to the database, for coordinating and monitoring its use? Select correct option:
A. Database Designer
B. Database Administrator
C. End User
D. Application Programmer
8 Which of the following is not a form of optical disk?
A. CD ROM
B. WORM
C. Erasable Optical
D. EEPROM
9 Which of the following is not a type of user interface?
A. Graphical User Interface (GUI)
B. Forms
C. DB tables
D. Text based
10 Which of the following is CORRECT about database management system's languages?
A. Data definition languages are used to specify the conceptual schema only.
B. Data manipulation languages are used to create the databases
C. Data manipulation languages are used for retrieval, insertion, deletion and modification of data
D. Data definition langauges are only used to update data in the DBMS.

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