Database Management Systems (DBMS)
What term describes the following? a DBMS component that determines the most efficient way to execute a given database query.
Difficulty: Hard
About this MCQ
This Hard Database Management Systems (DBMS) MCQ checks one syllabus fact.
The question is: “What term describes the following? a DBMS component that determines the most efficient way to execute a given database query.”
The accepted answer is A. Query optimizer. Query optimizer is the fact required by What term describes the following a DBMS component that determines the most efficient way to execute a given database query option A Option B Referential integrity does not match the stem it is a near-miss used to catch incomplete recall of Query optimizer Option C Relational database does not match the stem it is a near-miss used to catch incomplete recall of Query optimizer Remaining alternatives Database schema fall outside the same rule and should be eliminated once Query optimizer 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.
- A. Query optimizer ✓
- B. Referential integrity
Why not B: “Referential integrity” is not correct. The accepted answer is A. Query optimizer. Query optimizer is the fact required by What term describes the following a DBMS component that determines the most efficient way to execute a given database query option A Option
- C. Relational database
Why not C: “Relational database” is not correct. The accepted answer is A. Query optimizer. Query optimizer is the fact required by What term describes the following a DBMS component that determines the most efficient way to execute a given database query option A Option
- D. Database schema
Why not D: “Database schema” is not correct. The accepted answer is A. Query optimizer. Query optimizer is the fact required by What term describes the following a DBMS component that determines the most efficient way to execute a given database query option A Option
Correct answer
A. Query optimizer
Explanation
Query optimizer is the fact required by What term describes the following a DBMS component that determines the most efficient way to execute a given database query option A Option B Referential integrity does not match the stem it is a near-miss used to catch incomplete recall of Query optimizer Option C Relational database does not match the stem it is a near-miss used to catch incomplete recall of Query optimizer Remaining alternatives Database schema fall outside the same rule and should be eliminated once Query optimizer 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.
Source: Database Management Systems (DBMS) Official Reference Guide
Tags: computer science, dbms, SQL, databases
Submitted by: MCQsHub Editorial
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