Database Management Systems (DBMS)
The concept in which a database structure that improves the speed of data retrieval operations on a table is best known as which of these terms?
Difficulty: Hard
About this MCQ
This Hard Database Management Systems (DBMS) MCQ checks one syllabus fact.
The question is: “The concept in which a database structure that improves the speed of data retrieval operations on a table is best known as which of these terms?”
The accepted answer is C. Database index. The concept in which a database structure that improves the speed of data retrieval operations on a table is best known as which of these terms is answered by Database index option C Option A Foreign key does not match the stem it is a near-miss used to catch incomplete recall of Database index Option B ACID properties does not match the stem it is a near-miss used to catch incomplete recall of Database index Remaining alternatives Candidate key fall outside the same rule and should be eliminated once Database index 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.
- A. Foreign key
Why not A: “Foreign key” is not correct. The accepted answer is C. Database index. The concept in which a database structure that improves the speed of data retrieval operations on a table is best known as which of these terms is answered by Database index option
- B. ACID properties
Why not B: “ACID properties” is not correct. The accepted answer is C. Database index. The concept in which a database structure that improves the speed of data retrieval operations on a table is best known as which of these terms is answered by Database index option
- C. Database index ✓
- D. Candidate key
Why not D: “Candidate key” is not correct. The accepted answer is C. Database index. The concept in which a database structure that improves the speed of data retrieval operations on a table is best known as which of these terms is answered by Database index option
Correct answer
C. Database index
Explanation
The concept in which a database structure that improves the speed of data retrieval operations on a table is best known as which of these terms is answered by Database index option C Option A Foreign key does not match the stem it is a near-miss used to catch incomplete recall of Database index Option B ACID properties does not match the stem it is a near-miss used to catch incomplete recall of Database index Remaining alternatives Candidate key fall outside the same rule and should be eliminated once Database index 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.
Source: Database Management Systems (DBMS) Official Reference Guide
Tags: computer science, dbms, SQL, databases
Submitted by: MCQsHub Editorial
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