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) MCQ checks one syllabus fact.
The question is: “Which concept is defined as follows: the process of intentionally introducing redundancy into a database to improve read performance?”
The accepted answer is A. Denormalization. Denormalization is the person body or term that satisfies 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 match the stem it is a near-miss used to catch incomplete recall of Denormalization Option C Database index does not match the stem it is a near-miss used to catch incomplete recall of Denormalization Remaining alternatives Database trigger fall outside the same rule and should be eliminated once Denormalization is identified Database Management Systems DBMS questions of this type reward precise definitions rather than approximate associations Database Management Systems DBMS recall of this distinction is a regular item in FPSC PPSC NTS and CSS.
- A. Denormalization ✓
- B. Candidate key
Why not B: “Candidate key” is not correct. The accepted answer is A. Denormalization. Denormalization is the person body or term that satisfies Which concept is defined as follows the process of intentionally introducing redundancy into a database to improve read pe
- C. Database index
Why not C: “Database index” is not correct. The accepted answer is A. Denormalization. Denormalization is the person body or term that satisfies Which concept is defined as follows the process of intentionally introducing redundancy into a database to improve read pe
- D. Database trigger
Why not D: “Database trigger” is not correct. The accepted answer is A. Denormalization. Denormalization is the person body or term that satisfies Which concept is defined as follows the process of intentionally introducing redundancy into a database to improve read pe
Correct answer
A. Denormalization
Explanation
Denormalization is the person body or term that satisfies 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 match the stem it is a near-miss used to catch incomplete recall of Denormalization Option C Database index does not match the stem it is a near-miss used to catch incomplete recall of Denormalization Remaining alternatives Database trigger fall outside the same rule and should be eliminated once Denormalization is identified Database Management Systems DBMS questions of this type reward precise definitions rather than approximate associations Database Management Systems DBMS recall of this distinction is a regular item in FPSC PPSC NTS and CSS.
Source: Database Management Systems (DBMS) Official Reference Guide
Tags: computer science, dbms, SQL, databases
Submitted by: MCQsHub Editorial
Related MCQs
- Select the correct name for: a diagram that visually represents entities and their relationships within a data...
- The following statement describes a specific concept. What is it called? a stored procedure that automatically...
- In computer science, Transaction refers to which of the following?
- Select the accurate description of Database trigger.
- What term describes the following? a sequence of one or more database operations executed as a single logical...
- Which term refers to a virtual table based on the result of a stored SQL query?