Practice high-yield Computer Science & IT MCQs on Database Systems — Part 2 with worked academic solutions for PPSC, FPSC, CSS, PMS, NTS.
Questions
40
Difficulty Level
Exam-Level
Target Exams
PPSC, FPSC, CSS...
Estimated Time
48 mins
Exam-Level PPSC FPSC CSS PMS NTS
Verified for Commission Syllabus • Oct 14, 2026
40
Verified Practice Questions
Interactive test mode with detailed academic worked solutions
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🎉 Set complete! All 40 questions answered.
Question 1 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Updating a database means
Correct Answer: Option C — modifying or adding record occurrences
Detailed Academic Explanation:
modifying or adding record occurrences is the correct answer to “Updating a database means”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 2 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In SQL, which command(s) is(are) used to enable/disable all triggers on a table?
Correct Answer: Option B — ALTER TABLE
Detailed Academic Explanation:
ALTER TABLE is the correct answer to “In SQL, which command(s) is(are) used to enable/disable all triggers on a table”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 3 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
When you have finished entering information into a form
Correct Answer: Option B — the contents of the form are written to the data file
Detailed Academic Explanation:
the contents of the form are written to the data file is the correct answer to “When you have finished entering information into a form”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 4 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The main idea behind computer files is that it is convenient to
Correct Answer: Option B — store information together
Detailed Academic Explanation:
store information together is the correct answer to “The main idea behind computer files is that it is convenient to”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 5 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
A list consists of last names, first names, addresses, and pin codes if all people in the list have the same last and the same pin code, a useful key would be
Correct Answer: Option C — a compound key consisting of the first name and the last name
Detailed Academic Explanation:
a compound key consisting of the first name and the last name is the correct answer to “A list consists of last names, first names, addresses, and pin codes if all people in the list have the same last and the same pin code, a useful key would be”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 6 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In SQL, which command is used to add new rows to a table?
Correct Answer: Option C — INSERT
Detailed Academic Explanation:
INSERT is the correct answer to “In SQL, which command is used to add new rows to a table”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 7 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
A number of related records that are treated as a unit is called
Correct Answer: Option A — file
Detailed Academic Explanation:
file is the correct answer to “A number of related records that are treated as a unit is called”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 8 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
If you want to group the records in the abc database, you could use the Jobcode as the _____.
Correct Answer: Option C — Sort Key
Detailed Academic Explanation:
Sort Key is the correct answer to “If you want to group the records in the abc database, you could use the Jobcode as the _____.”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 9 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The Management Information system (MIS) structure with one main computer system is called a
Correct Answer: Option C — centralized MIS structure
Detailed Academic Explanation:
centralized MIS structure is the correct answer to “The Management Information system (MIS) structure with one main computer system is called a”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 10 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
If a calculation is embedded in a form
Correct Answer: Option B — the calculations are stored with the form
Detailed Academic Explanation:
the calculations are stored with the form is the correct answer to “If a calculation is embedded in a form”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 11 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Data security threats include
Correct Answer: Option B — privacy invasion
Detailed Academic Explanation:
privacy invasion is the correct answer to “Data security threats include”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 12 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
An operation that will increase the length of a list is
Correct Answer: Option A — Insert
Detailed Academic Explanation:
Insert is the correct answer to “An operation that will increase the length of a list is”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 13 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In SQL, which command is used to add a column/integrity constraint to a table
Correct Answer: Option D — ALTER TABLE
Detailed Academic Explanation:
ALTER TABLE is the correct answer to “In SQL, which command is used to add a column/integrity constraint to a table”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 14 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In SQL, which command is used to changes data in a table?
Correct Answer: Option A — UPDATE
Detailed Academic Explanation:
UPDATE is the correct answer to “In SQL, which command is used to changes data in a table”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 15 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What name is given to the collection of facts, items of information or data which are related in some way?
Correct Answer: Option A — Database
Detailed Academic Explanation:
Database is the correct answer to “What name is given to the collection of facts, items of information or data which are related in some way”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 16 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In a large DBMS
Correct Answer: Option A — each user can "see" only a small part of the entire database
Detailed Academic Explanation:
each user can "see" only a small part of the entire database is the correct answer to “In a large DBMS”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 17 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which of the following command(s) is(are) used to recompile a stored procedure in SQL?
Correct Answer: Option B — ALTER PROCEDURE
Detailed Academic Explanation:
ALTER PROCEDURE is the correct answer to “Which of the following command(s) is(are) used to recompile a stored procedure in SQL”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 18 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Internal auditors should review data system design before they are
Correct Answer: Option D — All of the above
Detailed Academic Explanation:
All of the above is the correct answer to “Internal auditors should review data system design before they are”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 19 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
A _____ means that one record in a particular record type may be related to more than one record of another record type.
Correct Answer: Option B — One-to-many relationship
Detailed Academic Explanation:
One-to-many relationship is the correct answer to “A _____ means that one record in a particular record type may be related to more than one record of another record type.”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 20 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which command(s) is(are) used to redefine a column of the table in SQL ?
Correct Answer: Option A — ALTER TABLE
Detailed Academic Explanation:
ALTER TABLE is the correct answer to “Which command(s) is(are) used to redefine a column of the table in SQL”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 21 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which command(s) is(are) used to enable/disable/drop an integrity constraint in SQL?
Correct Answer: Option C — ALTER TABLE
Detailed Academic Explanation:
ALTER TABLE is the correct answer to “Which command(s) is(are) used to enable/disable/drop an integrity constraint in SQL”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 22 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In SQL, the ALTER TABLESPACE command is used
Correct Answer: Option E — All of the above
Detailed Academic Explanation:
All of the above is the correct answer to “In SQL, the ALTER TABLESPACE command is used”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 23 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The language used in application programs to request data from the DBMS is referred to as the
Correct Answer: Option A — DML
Detailed Academic Explanation:
DML is the correct answer to “The language used in application programs to request data from the DBMS is referred to as the”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 24 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
A database management system might consist of application programs and a software package called
Correct Answer: Option C — BPL
Detailed Academic Explanation:
BPL is the correct answer to “A database management system might consist of application programs and a software package called”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 25 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
An audit trail
Correct Answer: Option B — is the recorded history of operations performed on a file
Detailed Academic Explanation:
is the recorded history of operations performed on a file is the correct answer to “An audit trail”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 26 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
A race condition occurs when
Correct Answer: Option A — Two concurrent activities interact to cause a processing error
Detailed Academic Explanation:
Two concurrent activities interact to cause a processing error is the correct answer to “A race condition occurs when”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 27 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
An indexing operation
Correct Answer: Option C — establishes an index for a file
Detailed Academic Explanation:
establishes an index for a file is the correct answer to “An indexing operation”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 28 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The on-line, softcopy display a customer's charge account to respond to an inquiry is an examples of a
Correct Answer: Option D — on demand report
Detailed Academic Explanation:
on demand report is the correct answer to “The on-line, softcopy display a customer's charge account to respond to an inquiry is an examples of a”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 29 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In SQL, which command(s) is(are) used to create a synonym for a schema object?
Correct Answer: Option B — CREATE SYNONYM
Detailed Academic Explanation:
CREATE SYNONYM is the correct answer to “In SQL, which command(s) is(are) used to create a synonym for a schema object”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 30 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
If you want your database to include methods, you should use a _____ database.
Correct Answer: Option D — Object-Oriented
Detailed Academic Explanation:
Object-Oriented is the correct answer to “If you want your database to include methods, you should use a _____ database.”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 31 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In SQL, which of the following is not a data Manipulation Language Commands?
Correct Answer: Option D — CREATE
Detailed Academic Explanation:
CREATE is the correct answer to “In SQL, which of the following is not a data Manipulation Language Commands”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 32 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which of the following is not characteristic of a relational database model?
Correct Answer: Option B — treelike structure
Detailed Academic Explanation:
treelike structure is the correct answer to “Which of the following is not characteristic of a relational database model”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 33 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
A computer file contains several records. What does each record contain?
Correct Answer: Option C — Fields
Detailed Academic Explanation:
Fields is the correct answer to “A computer file contains several records. What does each record contain”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 34 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In SQL, the CREATE VIEW command is used
Correct Answer: Option B — to define a view of one or more tables or views
Detailed Academic Explanation:
to define a view of one or more tables or views is the correct answer to “In SQL, the CREATE VIEW command is used”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 35 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
A ____ Contains the smallest unit of meaningful data, so you might call it the basic building block for a data file.
Correct Answer: Option C — Fields
Detailed Academic Explanation:
Fields is the correct answer to “A ____ Contains the smallest unit of meaningful data, so you might call it the basic building block for a data file.”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 36 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In the DBM approach, application programs perform the
Correct Answer: Option B — processing functions
Detailed Academic Explanation:
processing functions is the correct answer to “In the DBM approach, application programs perform the”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 37 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In SQL, which command is used to create a database user?
Correct Answer: Option C — CREATE USER
Detailed Academic Explanation:
CREATE USER is the correct answer to “In SQL, which command is used to create a database user”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 38 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
When performing a look-up operation using a form
Correct Answer: Option A — you enter the search value into the form
Detailed Academic Explanation:
you enter the search value into the form is the correct answer to “When performing a look-up operation using a form”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 39 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
A _____ means that one record in a particular record type is related to only one record of another record type.
Correct Answer: Option A — One-to-one relationship
Detailed Academic Explanation:
One-to-one relationship is the correct answer to “A _____ means that one record in a particular record type is related to only one record of another record type.”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
Question 40 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
A _____ database does not use pointers or physical links, but instead finds related records by examining the contents of fields.
Correct Answer: Option C — Relational
Detailed Academic Explanation:
Relational is the correct answer to “A _____ database does not use pointers or physical links, but instead finds related records by examining the contents of fields.”. This question is standard in competitive examination syllabi for Database Systems.
💡Key Conceptual Anchor:Database Systems
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Master the next curriculum module with 40 exam-standard MCQs.
In competitive commission exams (FPSC, PPSC, KPPSC, SPSC, CSS, PMS), questions are frequently phrased with distractor options designed to catch rote learners. Whenever you answer an MCQ, read the Detailed Academic Explanation and Conceptual Anchor to understand why the remaining options are incorrect.