CBSE Class 11 Computer Science Sample Paper Set W

CBSE Class 11 Computer Science  Sample Paper Set W. CBSE exams for CBSE Students. Based on CBSE and NCERT guidelines. The students should practice these Question Papers to gain perfection which will help him to get more marks in CBSE examination. Please refer to more CBSE Class 11 question papers in other links. The CBSE Question papers are prepared based on trend in past examinations and expected questions in CBSE exams. Its always recommended by CBSE to practice the papers released by CBSE to get better exams in CBSE exams. CBSE Last Year Question Papers for class 11 for final/ term/ SA1/ SA2 Examinations conducted by Central Board of Secondary Education for all CBSE affiliated schools in India and abroad. Please refer to more CBSE Class 11 sample papers, question papers, HOTs etc in other links


a.Differentiate between primary memory and secondary memory.. Give examples of each type of memory. 

A)The memory inside the CPU is primary memory (main memory) and the memory outside it is known as secondary(auxiliary) memory.

Primary Memory: RAM (Random Access Memory) and ROM (Read only Memory) comes under primary memory. RAM is volatile memory and ROM is non volatile memory. All the data and programs must be stored in RAM for execution. But the content of RAM is not permanent. Eg: RAM, ROM.

Secondary Memory: Since primary memory has a limited storage capacity and is not permanent, secondary storage devices are used to store large amount of data permanently. There are various types of secondary devices available these days. Eg: Hard disks, Floppy disks ----- Magnetic Media CD ROMS, DVDs ----- Optical Media

b. What is the difference between semantics error and syntax error? Give an example of each.

A) 1.Syntax Errors: Syntax errors occur when rules of a programming language are misused. Syntax refers to formal rules governing the construction of valid statements in a language. Eg: int a,b //Did not keep ; (semicolon) at the end of statement.

2.Semantics Error: Semantic errors occur when statements are not meaningful. Semantics refers to the set of rules which give the meaning of a statement. Eg: X * Y = Z;

(Siva plays Guitar is Syntactically and Semantically correct but Guitar plays Siva is Syntactically correct but Semantically incorrect).

c. What do you meant by a lexical unit? Give an example. 

A) Token: The smallest individual unit in a program is known as a token (Lexical Unit). There are 5 types of tokens.

     (i) Keywords     (ii) Identifiers     (iii) Literals     (iv) Punctuators      (v) Operators

d. what is relation between Microprocessor and Microcomputer 

Ans. Microcomputer is a computer that contain a Microprocessor

e. Briefly Distinguish between a general purpose and special purpose computer 


a. what is the shortcut menu ? what is its significance 

b. what is the significance of Recycle Bin 

c. Explain the concept of time sharing 

d. What is meant by the term multiprogramming and multitasking 

e .Explain briefly the function performed by an operating system as processor manager. 


a. 4.Differentiate between object oriented programming and procedural oriented programming with the help of examples of each. 

A. Procedure Oriented Programming: A program in a procedural language is a list of instructions where each statement tells the computer to do something. The focus is on the processing. There is no much security for the data.

Object Oriented Programming: The object oriented approach views a problem in terms of objects involved rather than procedure for doing it. In object oriented programming, object represents an entity that can store data and has its interface through functions

b.Distinguish between if and switch statement. 

A)The if-else and switch both are selection statements and they both let you select an alternative out of given many alternatives by testing an expression. But there are some differences in their operations.

(i) The switch statement differs from the if statement in that switch can only test for equality whereas if can evaluate a relational or logical expression. Ie multiple conditions.

(ii) The switch statement selects its branches by testing the value of same variable whereas the if else construction lets you use a series of expressions that may involve unrelated variables and complex expressions.

(iii) The if-else can handle ranges whereas switch cannot.

c.Differentiate between call by value and call by reference with help of an example. 

A)(i)In call by value, actual arguments will be copied into the formal perameters. In call by reference, formal perameters are references to the actual arguments.

(ii)In call by value, if any modification is occurred to the formal perameter, that change will not reflect back to the actual argument. In call by reference, if any modification is occurred to the formal perameter (reference to the actual argument), the actual argument value will be changed.

(iii) We should go for call by value when we don’t want to modify the original value. We should go for call by value when we want to modify the original value.

(iv) Example:

              void Change(int a, int &b)

                     { a= 2*a;



Here a is called by “call by value” method and b is called by “call by reference” So as the value of a is changed, actual argument for a will not be changed, as the value of b is changed, actual argument for b will be changed

d.Write the names of the header files of the following functions.

              i)getch()                          ii) isalpha()                 iii)strcpy()        iv)sqrt() 

A)          (i) getch( ) - conio.h          (ii)isalpha( ) – ctype.h

             (iii)strcpy( ) - string.h         (iv)sqrt( ) - math.h

Please refer to attached file for CBSE Class 11 Computer Science  Sample Paper Set W.



Click to View or Download pdf file
Click for more Computer Science Study Material

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

NEP Transforming India Quiz

As a part of Shikshak Parv celebration, an online quiz competition on National Education Policy 2020 will be organized by the Ministry of Education, Govt. of India, from 5 th September to 25th September 2020 in order to create awareness about NEP among all stakeholders...

Online Teacher Training Course on Competency based Education in DIKSHA

Competency is a set of skills, abilities, knowledge that helps an individual perform a given task in real life. Every learning should go into the imbibing of these skills to lead a productive and joyful life. The NATIONAL EDUCATION POLICY-2020 calls for shift towards...

National Online Painting Championship

The National Mission for Clean Ganga, Ministry of Jal Shakti in collaboration with Kalantar Art Trust is organizing KALANTAR-2020: National Online Painting Championship with the aim to provide a platform to youth and school children to demonstrate their artistic skills...

Training of CBSE School Teachers on Olabs

Training of CBSE School Teachers on Olabs in collaboration with C-DAC Mumbai: OLabs is a platform jointly developed by the Ministry of Electronics and Telecommunications, Government of India, CDAC, and Amrita University to facilitate a virtual experience of CBSE...

TERI Green Olympiad 2020

Green Olympiad is a value driven project conducted by TERI (The Energy and Resources Institute) for school students annually since 1999. This Olympiad assesses the environment quotient of students and also enhances their understanding on issues related to sustainable...

Conduct of the practical work during the lockdown

CBSE has advised schools to follow the Alternative Calendar developed by NCERT to continue education during the lockdown through alternative modes to achieve learning outcomes. Schools have reportedly started using these calendars and other prescribed pedagogical...

Studies Today