Programming & Databases MCQs with Answers and Explanations

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1What is a global variable?

A.A variable declared with a wider program-level scope

B.A variable available only inside one loop

C.A constant stored in hardware

D.A variable belonging to a database row

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2Where is a local variable normally accessible?

A.Everywhere on the internet

B.Only within the block or function where it is declared

C.Only inside a database

D.In every program running on the computer

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3What does variable scope determine?

A.How fast a variable is stored

B.Where in a program a variable can be accessed

C.Which operating system is installed

D.How a database is backed up

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4What is recursion?

A.A function calling itself to solve a smaller version of a problem

B.A database deleting itself

C.A compiler translating the same statement twice

D.A loop without any condition

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5What is the purpose of a return statement in a function?

A.To restart the computer

B.To send a value back to the calling code

C.To create a database automatically

D.To declare every variable globally

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6What is the difference between a parameter and an argument?

A.They always mean completely different programs

B.A parameter appears in a function definition, while an argument is supplied during a function call

C.An argument declares a class

D.A parameter can only contain text

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7What is a function in programming?

A.A reusable block of code designed to perform a task

B.A physical memory location

C.A database record

D.A type of operating system

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8What is the purpose of a break statement inside a loop?

A.It restarts the entire program

B.It immediately terminates the nearest loop

C.It skips only variable declarations

D.It creates another loop

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9Which loop checks its condition before executing its body?

A.While loop

B.Unconditional loop

C.Function declaration

D.Class constructor

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10Which loop is generally most suitable when the number of iterations is known in advance?

A.For loop

B.Infinite loop

C.Recursive exception

D.Switch statement

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11Which programming structure is used to repeat a block of code?

A.Loop

B.Comment

C.Constant

D.Class declaration

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12What is an algorithm?

A.A random collection of commands

B.A finite sequence of steps for solving a problem

C.A computer hardware component

D.A database table

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13What is pseudocode?

A.Machine code executed by a processor

B.A language-independent description of an algorithm

C.A database query language

D.An operating system command

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14Which data type normally stores either true or false?

A.Integer

B.String

C.Boolean

D.Character array

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15What does a data type define?

A.The physical size of the computer

B.The type of value a variable can store

C.The number of users in a database

D.The name of a programming language

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16What is the primary difference between a constant and a variable?

A.A constant cannot store data

B.A variable cannot have a name

C.A constant is not intended to change after assignment

D.A variable always contains text

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17What is a variable in programming?

A.A fixed hardware component

B.A named storage location for data

C.A programming language translator

D.A database server

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18A program runs successfully but produces an incorrect result. What type of error is this?

A.Syntax error

B.Compilation error

C.Logical error

D.Linking error

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19Which type of programming error occurs while a program is running?

A.Syntax error

B.Runtime error

C.Typographical comment

D.Documentation error

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20What is a syntax error in programming?

A.An error caused by incorrect program grammar

B.An error caused by faulty hardware

C.An error that always deletes data

D.An error in the operating system

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Programming and Databases MCQs with Answers for Computer Tests 2026

Programming and Databases MCQs help candidates prepare for computer literacy, IT assistant, data entry, office and technical screening tests. The questions cover database concepts, SQL basics, programming fundamentals and common terminology. MCQist has 23+ Programming & Databases practice MCQs - free with answer explanations.

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What database topics appear in MCQ tests?

Common database MCQs cover tables, records, fields, primary keys, foreign keys, SQL commands, normalization, DBMS functions and differences between databases and spreadsheets.

Programming basics for FPSC, NTS and office jobs

For non-technical posts, focus on concepts such as variables, loops, conditions, algorithms, compilers, interpreters and common programming languages. Technical posts may require deeper database and coding practice.

Programming and Databases MCQs with Answers | MCQist