What type of entity cannot be uniquely identified by its own attributes alone and must rely on a relationship with a parent entity? MCQ with Answer and Explanation

Question
What type of entity cannot be uniquely identified by its own attributes alone and must rely on a relationship with a parent entity?
A. Associative Entity
B. Weak Entity
C. Abstract Entity
D. Strong Entity
Answer: Option B
Solution (By JKSSB Mock Tests)
A Weak Entity is an entity that does not possess its own primary key and depends on an identifying relationship with a strong (owner) entity.
This question belongs to: Computer Database Management System (DBMS)
Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Database Management System (DBMS) Questions

Question #1
What is a super key in a relational database?
A. A key that includes the primary key
B. A set of attributes that uniquely identifies a row
C. Both A and B
D. A key that has extra attributes beyond a candidate key
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option C

Explanation:
A super key is a set of one or more attributes that uniquely identifies a row. A candidate key is a minimal super key.
This question belongs to: Computer Database Management System (DBMS)
Question #2
Which of the following database models organizes data in a tree-like upside-down structure with parent-child relationships?
A. Network Model
B. Hierarchical Model
C. Relational Model
D. Object-Oriented Model
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
The Hierarchical Model stores data in a tree-like configuration where each child node has exactly one parent node.
This question belongs to: Computer Database Management System (DBMS)
Question #3
Which of the following is a valid SQL data type for storing large binary data?
A. VARCHAR
B. BLOB
C. CHAR
D. TEXT
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
BLOB (Binary Large Object) is used for storing large binary data, such as images or files.
This question belongs to: Computer Database Management System (DBMS)
Explore All Database Management System (DBMS) MCQs
Today's Top Topics
Cyber Security 269 Database Management System (DBMS) 278 Computer Abbreviations 369 Computer Fundamentals 326 Computer Software 347
Explore Subjects
Accountancy and Statistics 3179 Economy GK 2220 English 15164 Computer 5279 Current Affairs 575
Practice Mix
Which of the following is an indirect tax in India?
The valve between the left atrium and left ventricle is the:
A person faces north. He turns 45° left, then 90° right, then 45° left. Which direction is he facing?
Under the Income Tax Act, the 'TDS' on the sale of an immovable property (other than agricultural land) by a resident is governed by which section, and what is the rate?
In 'Piecemeal Distribution' during dissolution, the first priority for payment of outside liabilities is: