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DBMS online mcqs practice set with answers

DBMS online mcqs practice set with answers

Study DBMS online mcqs practice set with answers for your academic course and prepare for your exam and online assignments. You can give online FREE Quiz and test your knowledge on OMCQ portal.

#OMCQ #MCQ #OnlineMCQ #OnlineQuiz – Yes! After Practice of MCQ, you can give Online Quiz Test of DBMS Multiple Choice Question Practice Exam Online Set and check your knowledge about your study.

Exam Question

An advantage of the database management approach is

  • 1. data is dependent on programs
  • 2. data redundancy increases
  • 3. data is integrated and can be accessed by multiple programs
  • 4. none of the above

View Answer

Answer 3. data is integrated and can be accessed by multiple programs

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

An integral part of database that can restore database to consistent state of before failure is called

  • 1. Recovery scheme
  • 2. Backup scheme
  • 3. Restoring scheme
  • 4. Transaction scheme

View Answer

Answer 1. Recovery scheme

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

A functional dependency is a relationship between or among:

  • 1. tables
  • 2. rows
  • 3. relations
  • 4. attributes

View Answer

Answer 4. attributes

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

DFD stands for

  • 1. Data Flow Document
  • 2. Data File Diagram
  • 3. Data Flow Diagram
  • 4. None of the above

View Answer

Answer 3. Data Flow Diagram

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

What is an SQL virtual table that is constructed from other tables?

  • 1. Just another table
  • 2. A view
  • 3. A relation
  • 4. Query results

View Answer

Answer 2. A view

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

Which of the following is NOT a type of SQL constraint?

  • 1. PRIMARY KEY
  • 2. FOREIGN KEY
  • 3. ALTERNATE KEY
  • 4. UNIQUE

View Answer

Answer 3. ALTERNATE KEY

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

Identify the class name for the following code: ABC123 course();

  • 1. ABC123
  • 2. course
  • 3. course()
  • 4. All of the above

View Answer

Answer 1. ABC123

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

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Exam Question

The following are components of a database except….

  • 1. user data
  • 2. metadata
  • 3. reports
  • 4. indexes

View Answer

Answer 3. reports

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

Which of the following applies to a class rather than an object?

  • 1. Query
  • 2. Update
  • 3. Scope
  • 4. Constructor

View Answer

Answer 3. Scope

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

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Exam Question

The keyword “inverse” is used in which of the following?

  • 1. Class
  • 2. Attribute
  • 3. Relationship
  • 4. All of the above

View Answer

Answer 3. Relationship

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

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Exam Question

The primary key is selected from the:

  • 1. [A]. composite keys
  • 2. [B]. determinants
  • 3. [C]. candidate keys
  • 4. [D]. foreign keys

View Answer

Answer 3. [C]. candidate keys

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

“Course(course_id,sec_id,semester); Here the course_id,sec_id and semester are…and course is a…”

  • 1. “Relations, Attribute”
  • 2. “Attributes, Relation”
  • 3. “Tuple, Relation”
  • 4. “Tuple, Attributes”

View Answer

Answer 2. “Attributes, Relation”

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

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Exam Question

The attribute AGE is calculated from DATE_OF_BIRTH . The attribute AGE is

  • 1. Single valued
  • 2. Multi valued
  • 3. Composite
  • 4. Derived

View Answer

Answer 4. Derived

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

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Exam Question

Consider the schedule: T1:R(X);T2:R(Y); T3:W(X); T2:R(X);T1:R(Y). The schedule T1 is?

  • 1. Conflict and View Serializable
  • 2. Not Conflict, but View Serializable
  • 3. Not Conflict and not View Serializable
  • 4. Conflict,but not View Serializable

View Answer

Answer 4. Conflict,but not View Serializable

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

In a database, data is stored in spreadsheets which have rows and columns.

  • 1. True
  • 2. False

View Answer

Answer 2. False

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

A UML diagram includes which of the following?

  • 1. Class name
  • 2. List of attributes
  • 3. List of operations
  • 4. All of the above

View Answer

Answer 4. All of the above

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

“Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables?”

  • 1. Data Definition Language(DDL)
  • 2. Data Manipulation Language(DML)
  • 3. Both of above
  • 4. None

View Answer

Answer 1. Data Definition Language(DDL)

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

Which of the following is not a recovery technique?

  • 1. Deferred update
  • 2. Immediate update
  • 3. Two-phase commit
  • 4. Recovery management

View Answer

Answer 3. Two-phase commit

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

Which of the following products was the first to implement true relational algebra in a PC DBMS?

  • 1. IDMS
  • 2. Oracle
  • 3. dBase-II
  • 4. R:base

View Answer

Answer 4. R:base

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt

Exam Question

A table on the many side of a one to many or many to many relationship must:

  • 1. Be in Second Normal Form (2NF)
  • 2. Be in Third Normal Form (3NF)
  • 3. Have a single attribute key
  • 4. Have a composite key

View Answer

Answer 4. Have a composite key

Practice set and Exam Quiz

Yes! You can do Online MCQ practice of DBMS question set and give online exam quiz test for DBMS, so you can check your knowledge. You can get MCQ Study and Exam link from home page.

Discuss if any doubt
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Important note for exam preparation: Must try Online MCQ Quiz Test after practice these DBMS MCQ, so you can check your knowledge and improve efficiency. You can get link from above mention for these subjects.