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12th Standard English Medium Computer Science Subject Scoping Book Back 2 Mark Questions with Solution updated Book back Questions

Published on: 13/05/2022

QB365 provides detailed and simple solution for every book back questions in class 12 Computer Science subject.It will helps to get more idea about question pattern in every book back questions with solution.

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Download Tamil Nadu 12th Standard Computer Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.

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Std: 12th Standard - Computer Science

chapter: - Book back Questions

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Questions:

Generic 2

5 x 2 = 10

How Python represents the private and protected Access specifiers?

What do you mean by Namespaces?

What is Mapping?

Why scope should be used for variable. State the reason.

What is a scope?

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Answers Key:

Generic 2

5 x 2 = 10

Python prescribes a convention of prefixing the name of the variable or method with single or double underscore to emulate the behavior of protected and private access specifiers.
Example: self_n2 = n2

Namespaces are containers for mapping names of variables to objects.
Example : a : =5
Here the variable 'a' is mapped to the value '5.

The process of binding a variable name with an object is called mapping = (equal to sign) is used in programming languages to map the variable and object.

Scope should be used for a variable because; it limits a variables scope to a single definition. That is the variables are visible only to that part of the code. Essentially, variables are addresses to an object in memory. When you assign a variable with := to an instance (object), you're binding (or mapping) the variable to that instance. Multiple variables can be mapped to the same instance.

Scope refers to the visibility of variables, parameters and functions in one part of a program to another part of the same program.