Hierarchical model MCQs in DBMS

By: Prof. Dr. Fazal Rehman Shamil | Last updated: September 23, 2024

MCQs on Hierarchical Model in DBMS

1. Which of the following is true about the hierarchical database model?
   • A. It organizes data in a tree-like structure.
   • B. It allows multiple relationships between records.
   • C. It is based on a graph structure.
   • D. It does not support parent-child relationships.
   • Answer: A. It organizes data in a tree-like structure.
2. In a hierarchical database model, a parent node can have how many child nodes?
   • A. Exactly one
   • B. At least two
   • C. One or more
   • D. No child nodes
   • Answer: C. One or more
3. Which of the following statements is false about the hierarchical database model?
   • A. Each child can have only one parent.
   • B. It is suitable for applications with a one-to-many relationship.
   • C. It is easy to implement many-to-many relationships in this model.
   • D. The model is based on parent-child relationships.
   • Answer: C. It is easy to implement many-to-many relationships in this model.
4. Which operation is commonly used to traverse a hierarchical database model?
   • A. Join
   • B. Traversal
   • C. Search
   • D. Parsing
   • Answer: B. Traversal
5. In the hierarchical model, a node that has no parent is called a:
   • A. Root
   • B. Leaf
   • C. Child
   • D. Sibling
   • Answer: A. Root
6. What is a disadvantage of the hierarchical database model?
   • A. Complex queries are easy to formulate.
   • B. Redundancy is minimized.
   • C. Data integrity is compromised.
   • D. Changes in structure require reorganization of the entire database.
   • Answer: D. Changes in structure require reorganization of the entire database.
7. In a hierarchical database model, a leaf node:
   • A. Has no children.
   • B. Has multiple parents.
   • C. Is the topmost node.
   • D. Has only one child.
   • Answer: A. Has no children.
8. The hierarchical model is primarily used in which of the following scenarios?
   • A. Many-to-many relationships
   • B. One-to-one relationships
   • C. One-to-many relationships
   • D. No relationships
   • Answer: C. One-to-many relationships
9. Which of the following DBMSs uses a hierarchical model?
   • A. Oracle
   • B. MySQL
   • C. IBM Information Management System (IMS)
   • D. PostgreSQL
   • Answer: C. IBM Information Management System (IMS)
10. In the hierarchical model, each child record can have how many parent records?
    • A. One
    • B. Two
    • C. Zero
    • D. Multiple
    • Answer: A. One

 

More MCQs Of Database Systems

1. Database Models MCQs in DBMS
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