Database Management Systems (DBMS)
Which concept is defined as follows: the process of intentionally introducing redundancy into a database to improve read performance?
Difficulty: Hard
About this MCQ
This Hard Database Management Systems (DBMS) question asks: Which concept is defined as follows: the process of intentionally introducing redundancy into a database to improve read performance? The correct choice is A. Denormalization. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
Database Management Systems (DBMS) items like this one are written for Pakistan exams such as CSS, FPSC, PPSC, and NTS. The difficulty label is a hint about how much of the topic the stem assumes, not a score. Tags and exam names, when they are present, tell you where else the same idea is tested. Previous and next links stay in Database Management Systems (DBMS) so you can continue the subject. Related questions point at nearby stems if you want another angle on the same idea.
Treat the explanation as part of the question, not a footnote. If you missed it, reread the stem against the correct option before you open the next Database Management Systems (DBMS) item. A timed quiz is the same pool with a clock and a score. A past paper is a full sitting rather than this single question.
- A. Denormalization ✓
- B. Candidate key
Why not B: “Candidate key” does not fit this question. The answer is Denormalization.
- C. Database index
Why not C: “Database index” does not fit this question. The answer is Denormalization.
- D. Database trigger
Why not D: “Database trigger” does not fit this question. The answer is Denormalization.
Correct answer
A. Denormalization
Explanation
Denormalization is the term that matches “Which concept is defined as follows: the process of intentionally introducing redundancy into a database to improve read performance” (option A). Option B (Candidate key) does not fit this question. Option C (Database index) does not fit this question. Option D (Database trigger) does not fit this question. For this Database Management Systems (DBMS) question, the accepted answer is Denormalization.
Source: Database Management Systems (DBMS) Official Reference Guide
Tags: computer science, dbms, SQL, databases
Submitted by: MCQsHub Editorial
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