Scoping Additional Practice Test — Class 12 Computer Science

12th Standard Computer Science — Scoping: Additional Online Practice Test

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In programming, what is the term used to describe the container that maps variable names to their corresponding memory objects?

A.Namespace B.Scope array C.Class module D.Inheritance block

If a variable 'a' is assigned the value 5, 'b' is set equal to 'a', and then 'a' is changed to 3, what value is 'b' mapped to?

A.3 B.5 C.8 D.None of the above

The duration for which a mapped variable is alive in a computer program's memory is referred to as its:

A.Scope B.Namespace lifetime C.Lifetime D.Visibility duration

Under the LEGB hierarchy, which scope is searched immediately after the Local scope during variable resolution?

A.Enclosed Scope B.Global Scope C.Built-in Scope D.Module Scope

Which type of scope occurs when a variable is declared inside an outer function that contains another nested function definition?

A.Local Scope B.Enclosed Scope C.Global Scope D.Built-in Scope

When are the variables and functions of the Built-in scope loaded into a program?

A.Only when explicitly called inside a function B.As soon as the compiler or interpreter starts, or when library files are imported C.After the Local and Global scopes are completely executed D.Upon saving the source code file

The process of subdividing a large computer program into separate, independent, and reusable sub-programs is known as:

A.Scoping B.Access Control C.Modular Programming D.Variable Mapping

Which of the following is a recognized characteristic of modules in programming?

A.They cannot contain both data and processing logic B.They can be separately compiled and stored in libraries C.They can only be called once during a program run D.They must have their scopes declared as public in all environments

Which of the following benefits of modular programming directly enables multiple programmers to collaborate on the same application simultaneously?

A.The code is stored across multiple separate files B.Debugging time is automatically reduced to zero C.All variables are automatically placed in Global scope D.The need to write logic in subroutines is completely eliminated

Q10

What is the security technique that regulates who or what is permitted to view or use resources in a computing environment?

A.Modularization B.Access Control C.Dynamic Scoping D.Local Mapping

Q11

In classical object-oriented programming, the principle of data encapsulation is ensured by combining which of the following?

A.Public instance variables and public namespaces B.Private instance variables and public methods C.Protected variables and global modules D.Local scopes and nested compilers

Q12

Which class members are accessible from within their own class and also available to any of its derived sub-classes, but denied to other processes?

A.Private members B.Public members C.Protected members D.Global members

Q13

How does Python handle member access restriction since it does not have strict enforcement mechanisms like C++ or Java?

A.By automatically throwing compile-time errors B.By using private namespaces that prevent script compilation C.By prefixing member names with single or double underscores as a convention D.By requiring all classes to be written inside Enclosed scopes

Q14

Which of the following correctly describes the default access behavior of class members in Python compared to C++ or Java?

A.In Python, members are private by default; in C++ and Java, they are public B.In Python, members are public by default; in C++ and Java, they are private C.In Python, members are protected by default; in C++ and Java, they are local D.There is no default behavior as all environments require explicit keywords

Q15

Which of the following prefixing options is prescribed by Python to emulating a private access specifier?

A.A single underscore prefix B.A double underscore prefix C.A double colon prefix D.A double dollar sign prefix

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About this Scoping test

This free online practice test covers Scoping from the 12th Standard Computer Science (Samacheer Kalvi) syllabus. Choose the number of questions and an optional time limit, then answer and submit — everything is checked in your browser, with the correct answers and a worked explanation shown at the end. For the full solutions to every question in this set, see the solved MCQs page.

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