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. Structural constraints of a relationship type refer to

a. the constraints applicable in granting access to tables, columns and views in a database schema.

b. identifying the owner entity type relevant to a given entity type

c. the role that a participating entity from the entity type plays in each relationship instance

d. whether the existence of an entity depends on it being related to another entity via the relationship type.

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2. A collection of related data is

a. Logical model

b. Data

c. Database

d. Relational model

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

a. Maximize redundancy

b. Minimize insertion anomolies

c. Minimize updation anomolies

d. Minimize deletion anomolies

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

a. 1:1

b. 1:M

c. M:M

d. Ternary

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5. 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.

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

a. K is a primary key for R1.

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

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

d. K is a key for some other relation

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7. User rights information is stored in

a. Buffer

b. Logical database

c. Physical database

d. Catalog

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

a. Allocation of storage locations and data structures

b. Planning, designing and implementing database systems

c. Establishing standards and procedures for database systems

d. Communicating with database users

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Category: CS403-mid

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

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

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

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

d. by splitting each table into three

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10. User rights information is stored in

a. Catalog

b. Physical database

c. Logical database

d. Buffer

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

a. Logical database

b. Physical database

c. Conceptual database

d. Relational database

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12. Identify the INCORRECT statement among the given.

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

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

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

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

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

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

b. unique identifier for a row within a database table

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

d. allow any actions that would destroy links between tables

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14. 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 FD2 violates 2NF

b. The relation Interview is in BCNF.

c. The FD3 violates 3NF.

d. The relation Interview is in 3NF

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15. The Entity Relation Model models

a. Entities, Relationships and Processes

b. Relationships

c. Entities and Relationships

d. Entities

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

a. Full functional dependency

b. Non-transitive dependency

c. Transitive dependency

d. Any kind of dependency

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

a. enforce domain integrity

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

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

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

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18. 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)

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19. A weak entity type

a. does not have a key attribute(s)

b. both (a) and (b)

c. must have total participation in an identifying relationship

d. none of the above

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20. Select the correct statement among the following.

a. When different entity types participate only once in a single relationship type it is called a recursive relationship

b. Partial participation which is also called existence dependency is displayed as a double line connecting the participating entity type to the relationship

c. Role names are not technically necessary in relationship types when all the participating entity types are distinct.

d. Cardinality ratios for binary relationship are displayed on Entity Relationship Diagrams by using a diamond shape notation

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

c. all sources/sinks (external entities)

d. one process (which represents the entire system)

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

a. completeness

b. uniqueness

c. specialization

d. inheritance

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

a. A recursive relationship

b. A ternary relationship

c. An identifying relationship

d. A binary relationship

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

a. Relation

b. Database

c. Schema

d. None of the above

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

a. superkey

b. common attribute

c. primary key

d. hyperlink

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26. Which of the following is true for the relational model?

a. Constraint is a rule that restricts the values in a database

b. Null value is a blank or zero value given to an attribute value when its value is inapplicable or its value is unknown.

c. Degree of a relation is the number of rows in a relation

d. Complex key is a key consisting of more than one attribute.

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27. Which of the following constraints enforces entity integrity?

a. NOT NULL

b. CHECK

c. PRIMARY KEY

d. FOREIGN KEY

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28. Structural constraints of a relationship type refer to

a. the role that a participating entity from the entity type plays in each relationship instance

b. whether the existence of an entity depends on it being related to another entity via the relationship type.

c. identifying the owner entity type relevant to a given entity type

d. the constraints applicable in granting access to tables, columns and views in a database schema

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Category: CS403-mid

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

a. Contains only derived attributes

b. The sequence of rows is significant

c. Values are atomic

d. The sequence of columns is significant

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30. A relation (from the relational database model) consists of a set of tuples, which implies that

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

b. all tuples in a relation must be distinct

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

d. all tuples in a particular relation may have different attributes

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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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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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