CS403 Midterm Past Paper

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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.

1 / 30

Category: CS403-mid

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

a. Database

b. Relation

c. Schema

d. None of the above

2 / 30

Category: CS403-mid

Select the correct statement about the ANSI/SPARC architecture

a. The internal level in a database system will definitely be relational

b. The conceptual level is a level of indication between the internal level and the external level

c. The external level is not concerned with individual user perceptions, while the conceptual level is concerned with a community user perception.

d. Any given database has many conceptual schemas and one physical schema, but it has only one external schemas.

3 / 30

Category: CS403-mid

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.

4 / 30

Category: CS403-mid

Which of the following constraints enforces entity integrity?

a. CHECK

b. PRIMARY KEY

c. FOREIGN KEY

d. NOT NULL

5 / 30

Category: CS403-mid

Which of the following is not true about relational tables?

a. Each row is unique

b. Column values are of the same kind

c. The sequence of rows is significant

d. Each column must have a unique name

6 / 30

Category: CS403-mid

Identify the INCORRECT statement among the given.

a. An entity type describes the schema or intension for a set of entities which share the same structure.

b. An entity may be an object with a physical existence like a car, a house or an Employee

c. One cannot consider something which has conceptual existence like a course in a degree program as an entity

d. Age can be considered as a single value attribute of a person.

7 / 30

Category: CS403-mid

Which of the following enforces a relation into 1st normal form?

a. Every non-key attribute is fully functionally dependent on primary key

b. The domain of attribute must include only atomic values.

c. Every non-key attribute is partially dependent on super key

d. non-key attribute is non-transitively dependent on primary key.

8 / 30

Category: CS403-mid

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

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

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

c. allow any actions that would destroy links between tables

d. unique identifier for a row within a database table

9 / 30

Category: CS403-mid

User rights information is stored in

a. Catalog

b. Buffer

c. Logical database

d. Physical database

10 / 30

Category: CS403-mid

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

a. Transitive dependency

b. Full functional dependency

c. Any kind of dependency

d. Non-transitive dependency

11 / 30

Category: CS403-mid

If K is a foreign key in relation R1, then

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

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

c. K is a key for some other relation

d. K is a primary key for R1.

12 / 30

Category: CS403-mid

Which of the following is true about relational schema?

a. Contains only derived attributes

b. The sequence of columns is significant

c. Values are atomic

d. The sequence of rows is significant

13 / 30

Category: CS403-mid

User rights information is stored in

a. Physical database

b. Buffer

c. Logical database

d. Catalog

14 / 30

Category: CS403-mid

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

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

b. one process (which represents the entire system)

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

d. all sources/sinks (external entities)

15 / 30

Category: CS403-mid

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

a. DBMS

b. Data model

c. Database

d. Data

16 / 30

Category: CS403-mid

In a conceptual model for a university, what type of relationship exists between Grade and Student entities?

a. 1:M

b. Ternary

c. 1:1

d. M:M

17 / 30

Category: CS403-mid

The Entity Relation Model models

a. Entities

b. Relationships

c. Entities and Relationships

d. Entities, Relationships and Processes

18 / 30

Category: CS403-mid

A weak entity type

a. both (a) and (b)

b. must have total participation in an identifying relationship

c. none of the above

d. does not have a key attribute(s)

19 / 30

Category: CS403-mid

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. A and B

b. B and C

c. Only B

d. Only A

20 / 30

Category: CS403-mid

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

a. NOT NULL

b. FOREIGN KEY

c. CHECK

d. UNIQUE

21 / 30

Category: CS403-mid

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. all tuples in a particular relation may have different attributes

c. relational model supports multi-valued attributes whose values can be represented in sets.

d. for any two tuples, the values associated with all of their attributes may be the same.

22 / 30

Category: CS403-mid

Identify the correct statement with respect to normalization

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

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

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

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

23 / 30

Category: CS403-mid

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

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

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

c. all sources/sinks (external entities)

d. one process (which represents the entire system)

24 / 30

Category: CS403-mid

Which of the following constraints enforces entity integrity?

a. NOT NULL

b. CHECK

c. PRIMARY KEY

d. FOREIGN KEY

25 / 30

Category: CS403-mid

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

a. hyperlink

b. primary key

c. superkey

d. common attribute

26 / 30

Category: CS403-mid

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

a. A recursive relationship

b. A binary relationship

c. An identifying relationship

d. A ternary relationship

27 / 30

Category: CS403-mid

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

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

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

28 / 30

Category: CS403-mid

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

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

d. enforce domain integrity

29 / 30

Category: CS403-mid

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

a. computer infrastructure

b. input and output

c. hardware

d. software

30 / 30

Category: CS403-mid

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

a. uniqueness

b. completeness

c. specialization

d. inheritance

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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 online Practice Quiz

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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