CS403 Midterm Past Paper online Practice Quiz

January 17, 2022

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CS403 Midterm Past Paper

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Practice Quiz from CS403 Midterm Past Paper

This quiz will evaluate your preparation for the CS403 midterm examination and it is based on the past papers of CS403. The purpose of this quiz is to evaluate your performance in this subject. If you can pass this quiz, then there is a great chance that you can secure good marks in your exams.

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Created on January 17, 2022 By

faisal_faisi

CS403

CS403 Midterm Past Papers Practice Quiz

Welcome to CS403 Midterm Online Practice Quiz.

You can check your preparation of CS403 for your Exams here.

Questions Will be different every time you will attempt.

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Category: CS403-mid

1. User rights information is stored in

a. Catalog

b. Logical database

c. Buffer

d. Physical database

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Category: CS403-mid

2. Identify the correct statement with respect to normalization

a. Normalization is a formal technique that can be used only at the starting phase of the database design

b. The process of normalization through decomposition must achieve the dependency reservation property at any cost whereas the lossless join property is sometimes sacrificed.

c. The process of normalization through decomposition must achieve the lossless join property at any cost whereas the dependency reservation property is sometimes sacrificed.

d. Normalization can be used as a top-down standalone database design technique

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Category: CS403-mid

3. A collection of related data is

a. Relational model

b. Data

c. Logical model

d. Database

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Category: CS403-mid

4. Which of the following is a correct way to implement one-to-many relationship while designing tables?

a. as a single table and rarely as two tables with primary and foreign key relationships.

b. by splitting each table into three

c. by splitting the data into two tables with primary key and foreign key relationships

d. using a junction table with the keys from both the tables forming the composite primary key of the junction table.

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Category: CS403-mid

5. Which of the following is a feature of PRIMARY KEY constraint?

a. enforces that the column will only accept null values.

b. unique identifier for a row within a database table

c. allow any actions that would destroy links between tables

d. limit the values that can be placed in a column

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Category: CS403-mid

6. Which of the following is not a benefit of normalization?

a. Minimize insertion anomolies

b. Maximize redundancy

c. Minimize updation anomolies

d. Minimize deletion anomolies

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Category: CS403-mid

7. Which of the following is true about NOT NULL constraint?

a. prevents any actions that would destroy links between tables with the corresponding data values

b. limit the values that can be placed in a column.

c. enforces the uniqueness of the values in a set of columns

d. enforce domain integrity

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Category: CS403-mid

8. A collection of concepts that can be used to describe the structure of a database

a. DBMS

b. Database

c. Data

d. Data model

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Category: CS403-mid

9. The Entity Relation Model models

a. Entities and Relationships

b. Entities, Relationships and Processes

c. Relationships

d. Entities

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Category: CS403-mid

10. Consider the following statements.
A. An entity integrity constraint states that no primary key value can be null.
B. A referential integrity constraint is specified between two relations.
C. A foreign key cannot be used to refer to its own relation.
Identify which of the above statements is/are correct

a. Only A

b. A and B

c. Only B

d. B and C

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Category: CS403-mid

11. Which of the following is NOT a feature of Context DFD?

a. one process (which represents the entire system)

b. sub-processes (which explain and decomposed the major process into small processes)

c. all sources/sinks (external entities)

d. data flows linking the process to the sources and sinks (external entities)

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Category: CS403-mid

12. Which of the following most certainly implies the need for an entire table to implement?

a. A recursive relationship

b. An identifying relationship

c. A ternary relationship

d. A binary relationship

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Category: CS403-mid

13. User rights information is stored in

a. Buffer

b. Physical database

c. Logical database

d. Catalog

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Category: CS403-mid

14. A description on a particular collection of data using the given data model

a. None of the above

b. Database

c. Relation

d. Schema

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Category: CS403-mid

15. Consider the relation Interview(CandidateNo, InterviewDate, InterviewTime, StaffNo, RoomNo) and the following functional dependencies.

FD1 : CandidateNo, InterviewDate -> InterviewTime, StaffNo, RoomNo FD2 : RoomNo, InterviewDate, InterviewTime -> StaffNo, CandidateNo FD3 : StaffNo, InterviewDate -> RoomNo Which of the following is correct?

a. The relation Interview is in BCNF.

b. The relation Interview is in 3NF

c. The FD3 violates 3NF.

d. The FD2 violates 2NF

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Category: CS403-mid

16. Identify the constraint that limits the values that can be placed in a column.

a. NOT NULL

b. UNIQUE

c. CHECK

d. FOREIGN KEY

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Category: CS403-mid

17. Which of the following is true about relational schema?

a. Contains only derived attributes

b. Values are atomic

c. The sequence of columns is significant

d. The sequence of rows is significant

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Category: CS403-mid

18. A database system allows the following EXCEPT

a. any user to access all its data

b. integration of data across multiple applications into a single application

c. more critical functions in organisations to be computerised and the need to keep a large volume of data available in an up to the minute current state increased

d. management and control of data towards an efficient working of an organisation.

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Category: CS403-mid

19. Database management systems, operating systems, applications and utilities are all examples of ____.

a. software

b. computer infrastructure

c. input and output

d. hardware

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Category: CS403-mid

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

a. A logical record is concerned with efficient storage of information in the secondary storage devices.

b. At the physical level, pointer or hashed address scheme may be employed to provide a certain degree of data independence at the user level.

c. The efficiency of a file system depends on how efficiently operations such as retrieve, insert, update, delete may be performed on the information stored in the file

d. Some physical organisations use pointers to record blocks to locate records on disk.

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Category: CS403-mid

21. If K is a foreign key in relation R1, then

a. K is a primary key for R1.

b. every tuple of R1 has a distinct value for K.

c. K cannot have a null value for tuples in R1.

d. K is a key for some other relation

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Category: CS403-mid

22. Which of the following constraints enforces entity integrity?

a. PRIMARY KEY

b. CHECK

c. FOREIGN KEY

d. NOT NULL

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Category: CS403-mid

23. Which of the following is not true about relational tables?

a. Each column must have a unique name

b. The sequence of rows is significant

c. Each row is unique

d. Column values are of the same kind

24 / 30

Category: CS403-mid

24. Which of the following functions are NOT performed by a database administrator?

a. Allocation of storage locations and data structures

b. Communicating with database users

c. Planning, designing and implementing database systems

d. Establishing standards and procedures for database systems

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Category: CS403-mid

25. Making a change to the conceptual schema of a database but not affecting the existing external schemas is an example of

a. Physical data independence

b. Logical data independence

c. Functional dependency

d. Concurrency control.

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Category: CS403-mid

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

a. inheritance

b. specialization

c. completeness

d. uniqueness

27 / 30

Category: CS403-mid

27. Which of the following is NOT a feature of Context DFD?

a. one process (which represents the entire system)

b. all sources/sinks (external entities)

c. sub-processes (which explain and decomposed the major process into small processes)

d. data flows linking the process to the sources and sinks (external entities)

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Category: CS403-mid

28. The ER- data model is an example of:

a. Relational database

b. Physical database

c. Logical database

d. Conceptual database

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Category: CS403-mid

29. Which of the following concepts is applicable with respect to 2NF?

a. Transitive dependency

b. Any kind of dependency

c. Full functional dependency

d. Non-transitive dependency

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Category: CS403-mid

30. An entity can be logically connected to another by defining a ____.

a. common attribute

b. superkey

c. primary key

d. hyperlink

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Note before downloading CS403 midterm past paper

One thing to note dear fellows that you must don’t rely on these papers only. They can be a source of help but not an ultimate solution. If you want to get good marks in your exams you are advised to go through all of your handouts and must watch all of the video lectures.

Golden rules for good marks in VU Exams.

As per my experience, I have developed some golden rules for getting good marks in Virtual University Exams based on experience. I got 3.96 CGPA by following these rules.So here they are:

Never miss your Quiz, Assignment, or GDB.
Always try to do your Assignment on your own.
Try your best to finish your video lectures 10 days before exams.
Try your best to read your handouts twice before exams.
Read forward attempt backward.
Never schedule more than one paper on the same day.
Your most difficult paper should have a gap of 1 or more days.
Toughest paper must be scheduled first.
Read questions forward and attempt backward.
Don’t waste your time during a paper on illegal activities.

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To download the CS403 midterm past paper click here.

CS403 Midterm Past Paper

Practice Quiz from CS403 Midterm Past Paper

Note before downloading CS403 midterm past paper

Golden rules for good marks in VU Exams.

As per my experience, I have developed some golden rules for getting good marks in Virtual University Exams based on experience. I got 3.96 CGPA by following these rules.So here they are:

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