KENDRIYA VIDYALAYA NO-1 ARMAPUR

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1 HOME ASSIGNMENT FOR SUMMER VACATION DAYS LESSONS MLL (MINIMUM LEVEL LEARNING) HOT(HIGH ORDER THINKING) Differentiate between call by value & call by reference with suitable examples in reference to function. 2.Write the header files to which the following functions belong: (i) getc ( ) (ii) isalnum ( ) (iii) scanf ( ) (iv) getxy ( ) 1. Observe the following program carefully & choose the correct possible output from the options (i) to (iv) justifying your answer. #include<iostream.h> #include<conio.h> #include<stdlib.h> void main( ) clrscr( ); randomize( ); int RN; RN=random(4)+5; for(int i=1;i<=rn;i++) cout<<i<<' '; getch(); i) ii) iii) iv) What is the purpose of using a typedef command in C++. Explain with suitable example 1. #include <iostream.h> void Secret(char Str[ ]) for (int L=0;Str[L]!='\0';L++); for (int C=0;C<L/2;C++) if (Str[C]=='A' Str[C]=='E') Str[C]='#'; else char Temp=Str[C]; Str[C]=Str[L-C-1]; Str[L-C-1]=Temp; void main() char Message[ ]="ArabSagar"; Secret(Message); cout<<message<<endl; 2. Define the term data hiding in the conrexr of object oricured programming. Give a suitable example using a C++ code to illustrate the same. 1. In the following program, if the value of Guess entered by the 65, what will be the expected output from the following optlons (iii) & (iv)? #includeciostream.h> #includecstdlib.h> void main 0 int Guess; 1. What do you mean by static variable? Explain with help of example. 2. How member functions and non member functions differ? 1. What is the difference between #define & const? Explain through example. 2. Name the header files that shall be required for successful compilation of the following C++ program : main( ) char str[20]; cout<<fabs( ); cout<< \n Enter a string : ; cin.getline(str,20); return 0; 1. While implementing encapsulation, abstraction is also implemented. Comment. 2. Study the following program and select the possible output from it: #include<iostream.h> #include<stdlib.h> const int Max=3; void main( ) randomize(); int Number; Number=50+random(Max); for(int P=Number; P >=50;P- -) cout<<p<< # ; cout<<endl; (i) 53#52#51#50# (ii) 50#51#52# (iii) 50#51# (iv) 51#50# 1. What will be the output of the following program: #include <iostream.h> void Secret(char Str[ ]) for (int L=0;Str[L]!='\0';L++); for (int C=0;C<L/2;C++) if (Str[C]=='A' Str[C]=='E') Str[C]=Str[L-C-1]; Happy Vacations!!! GOD Bless!!!

2 5 sundomize 0; (cin>>guess; for (int i = 1; i<=4; l++) New = Guess + random (i); cout<<(char) New; ) (i) ABBC (ii) ACBA (iii) BCDA (iv) CABD 2. Give the output of the following program: #include <iostream.h> struct Pixel int C, R; void Display (Pixel P) cout << Col << P.C << Row << P.R << endl; void main ( ) Pixel X=40, 50, Y, Z; Z = X; X. C += 10 ; Y = Z ; Y. C += 10 ; Y. R += 20 ; Z. C -= 15 ; Display ( X ) ; Display ( Y ) ; Display ( Z ) ; 1. Differentiate between a global variable and a local variable. Also give suitable example in C++. else char Temp=Str[C]; Str[C]=Str[L-C-1]; Str[L-C-1]=Temp; void main() char Message[ ]="PreboardExam"; Secret(Message); cout<<message<<endl; 2. Find the output of the following program: # include <iostream.h> # include <conio.h> # include <stdlib.h> void main () char serial[] = 'A', 'B', 'C', 'D' int number[] = 2, 6, 7, 3 clrscr(); randomize(); cout << " The winner is : "; cout << serial [random(3)]; for (int i = 0; i < 4; i++) cout << number[sizeof(int) + random(2) - 1 ]; getch(); Outputs: (i) The winner is : A2776 (ii) The winner is : D6766 (iii) The winner is : B6767 (iv) The winner is : C Study the following program and select the possible output from it: #include<iostream.h> #include<stdlib.h> const int BIG = 3 ; void main( ) randomize( ); int Digit ; Digit = 90 + random (BIG ); for (int K = DIGIT ; K >= 90 ; K ) cout<< K << $ ; What do you understand by Polymorphism? Give an example in C++ to show its implementation in C What is Inheritance? Give an example in C++ to show its implementation in C++. (i) 93$93$92$91$90$ (ii) 91$90$ (iii) 90$91$92$ (iv) 90$92$ 1. Encapsulation is one of the major properties of OOP. How is it implemented in C++? 1. Reusability of classes is one of the major properties of OOP. How is it implemented in C++?

3 Function overloading 1. What is procedural programming paradigm and what are its limitations? 1. Write two major differences between and Procedural. 1.What do you understand by function overloading? Give an example illustrating its use in a C++ program. 1.Give some characteristics of OOPs. 1. Differentiate between Function Overloading and Default Arguments with suitable example. 1.Differentiate between structure and class. 1. What do you understand by visibility modes in class derivations? What are these modes? 1. Define a class TEST in C++ with following description: Private Members a. TestCode of type integer b. Description of type string c. NoCandidate of type integer d. CenterReqd (number of centers required) of type integer e. A member function CALCNTR() to calculate and return the number of centers as (NoCandidates/100+1) Public Members for TestCode, Description, NoCandidate & call function CALCNTR() to calculate the number of Centres content of all the data members 1. Define a class named HOUSING in C++ with the following descriptions: Private Members: REG_NO integer (Ranges ) NAME Array of characters (String) TYPE Character COST Float Public Members: type. of 2 houses selected randomly from an array of 10 of type HOUSING. Use random function to generate the registration nos. to match with REG_NO from the array. ct. 1. Write any two advantages and two disadvantages of. 1.In overloaded function how matching is done? 1.What is the information being hidden by information hiding? 1. What two features of an object are linked together by encapsulation? 1. What do you understand by function overloading? Give an example illustrating its use in a C++ program. 1.A class called A is declared and all its data member and member functions are private. Is it possible to declare an object of type A and use it in any function? Justify your answer. 2.A class is defined without any data member. What is the size of the class? 1. How does the visibility mode control the access of members in the derived class? Explain with example. 1. Define a class Taxpayer, whose class description is given below:- Private Members:- int pan - to store the personal account no. char name[20] - to store the name float taxableinc - to store the total annual taxable income. float tax - to store the tax that is calculated. computetax ( )- A function to compute tax from the following rule:- Total Annual Taxable Income Rate of Taxation Up to % Greater than 60000, less than = % Above , upto % Above % Public Members :- inputdata ( ) - A function to enter the data and call the compute tax( ) function. display( ) - To display the data. 1. Defne a class WEAR in C++ with following description : Private members : code string Type string Size integer material string Price real number A function calprice( ) that calculates and assign the value of price as follows : For the value of material as WOOLEN Type Price(Rs.) Coat 2400 Sweater 1600 For material other than WOOLEN the

4 Define a class Employee in C++ with the following specification: Private Members: ename an array of char of size[50] ( represent employee name) deptname an array of char of size[20] ( represent department name) salary integer ( represent total salary of an employee) bonus float CalBonus() This function calculate the total bonus given to an employee according to following conditions Deptname Bonus Accounts 4 % of salary HR 5% of salary IT 2% of salary Sales 3% of salary Marketing 4% of salary Public Members: Constructor to initialise ename and deptname to NULL and salary and bonus to 0. A function read_info to allow user to enter values for ename, deptname,salary & Call function CalBonus() to calculate the bonus of an employee. A Function disp_info() to allow user to view the content of all the data members. 1. Define a class progress with following specification : Private Members : adno 4 digit admission number name 20 characters marks an array of 5 floating point values. average Average marks obtained getavg() to compute the average obtained in five subjects Public members : Readinfo() function to accepts values for adno, name, makrsand invoke the function getang(). Displayinfo() function to display all data members of repest on the screeen 1. What is the use of a constructor function in a class? Give a suitable example of a constructor function in a class. 1. What do you understand by default constructor and copy constructor functions used in classes? How are these functions different form normal constructors? above mentioned price gets reduced by 30%. Public members : A constructor to get initial values for code, Type & material as EMPTY & size and price with 0. A function INWEAR( ) to input the values for all the data members except price which will be initialized by function calprice( ). Function DISPWEAR( ) that shows all the contents of data members 1. A class TRAVEL with the following descriptions : Private members are : Tcode, no_of_pass, no_of_buses integer (ranging from 0 to 55000) Place string Public members are: Tcode as 101, Place as Varanasi, no_of_pass as 5, no_of_buses as 1. information except no_of_buses according to the following rules : Number of passengers Number of buses Less than 40 1 Equal to or more than 40 & less than 80 2 Equal to or more than 80 3 all the information. 2. What is an inline function? Specify the conditions when you can not create inline function? 1.Time is a class with the following data members and member functions-: Data members- Hours (int) Minutes (int) Seconds(int) Member functions- Constructor to initialize the data members. To find the difference two time. To display time. Complete the program with the declarations and definitions. Read a time in the main() and pass it to the function to find the difference. 1.How does the global class constructor run? 1.Given the program #include<iostream.h> Main() cout<< Happy Summer Vacations Modify it to produce the following output without changing main() in anyway.

5 Answer the questions (i) and (ii) after going through the following program: class Match int Time; Match() //Function 1 Time=0; cout<< Match commences <<end1; void Details() //Function 2 cout<< Inter Section Basketball Match <<end1; Match(int Duration) //Function 3 Time=Duration; cout<< Another Match begins now <<end1; Match(Match &M) //Function 4 Time=M.Duration; cout<< Like Previous Match <<end1; i) Which category of constructor - Function 4 belongs to and what is the purpose of using it? ii) Write statements that would call the member Functions 1 and Why is a destructor function required in classes? Illustrate with the help of an example. 1. Answer the questions (i) to (iv) based on the following: class MNC char Cname[25]; char Hoffice[25]; MNC(); char Country[25]; void Enterdata(); void displaydata(); class Branch :public MNC long NOE; char ctry[25]; void Association (); Branch(); void add(); void show(); class outlet :public branch char state[25]; outlet(); void enter(); Starting. Happy Summer Vacations Reading,Writing and Enjoying. Best of Luck 1. Answer the questions (i) and (ii) after going through the following class: 2 class player int health; int age; player() health=6; age=18 //Constructor1 player(int s, int a) health =s; age = a ; //Constructor2 player( player &p) //Constructor3 ~player() cout<< Memory Deallocate ; //Destructor void main() player p1(7,24); //Statement1 player p3 = p1; //Statement3 (i) When p3 object created specify which constructor invoked and why? (ii) Write complete definition for Constructor3? 1. Explain with suitable examples how to create the object by calling the constructor implicitly and explicitly. 1. Define a class SalesCounter with folloeing specifications: Data members: Net_amt, Amount Real values ClothType - string( 30), Pay_mode string (30) Member functions o Constructor to initialize the Amount as 0, ClothType as Cotton, Pay_mode as Cash, Net_amt as 0 o Calc_net () to calculate discount and net_amt. The Company offers discount scheme on each purchase to the customer. The scheme is as follows Purchase above 5000 and avail discount of 10% Purchase above 7500 and avail discount of 15% Purchase above 5000 and avail discount of 5% Purchase above 7500 and avail discount of 10% Purchase above 5000 and avail discount of 15%

6 void output(); 1.Which class s constructor will be called first at the time of declaration of an object of class outlet? 2.How many bytes does an object belonging to class outlet require? 3.From the following, which cannot be called directly from the object of class outlet : void Association(); void enter(); void show(); 4.If the class MNC is inherited by using protected visibility mode, then name the members which are accessible through the functions of outlet class. 5. Name the types of inheritance used in above code. 1. Differentiate between Public,Protected and Private members of a class in context of Inheritance using C++. 1.What is the base and derived class? Discuss the relationship between them. 1. Given the following class definitions answer the questions that follow: class book char title[20]; char author[20]; int no_of_pages; void read( ); void show( ); class textbook:private book int no_of_chapters, no_of_assignments; protected: int standard; void readtextbook( ); void showtextbook( ); class physicsbook:public textbook char topic[20]; void readphysicsbook( ); void showphysicsbook( ); Name the members, which can be accessed from the member functions of class physicsbook. Name the members, which can be accessed by an object of class textbook. Name the members, which can be accessed by an object of class physicsbook. What will be the size of an object (in bytes) of class physicsbook. Purchase above 7500 and avail discount of 25% Now if the customer is paying by Cash an additional 2% discount will be given to them. If by Cheque no discount will be given, if payment mode is credit card 2.5% tax has to be paid by the customer on the total purchase. o Purchase () The Salesman will enter the detail of the purchasing made by the customer and will also enter the payment mode(cash/cheque/credit CARD ), and will invoke the Calc_net() to calculate the net amount o Show() The function will generate the bill to the customer along with the purchase details and the amount to be paid 1. What is Containership? How does it differ from Inheritance? 1. Define Multilevel and Multiple inheritances in context of. Give suitable example to illustrate the same. 1. Answer the questions (i) to (iv) based on the following code: class Goods int id; char name[20]; long qty; void Incr(int n); Goods(); ~Goods(); void get(); class Food_products : protected Goods char exp_dt[10]; int id; int qty; void getd(); void showd(); class Cosmetics : private Goods int qty; char exp_date[10]; int id; ~Cosmetics(); Cosmetics(); void show();

7 Answer the questions (i) to (iv) based on the following: class cloth char category [5]; char description [25]; float price; void entercloth ( ); void displaycloth ( ); class design : protected cloth char design [21]; float cost; int design; design ( ) void enterdesign ( ); void dispdesign ( ); class costing : public cloth float desingfee; float stiching; float cal_cp ( ); protected: float costprice; float sellprice; void entercost ( ); void dispcost ( ); costing ( ); (i) Write the names of data members which are accessible from belonging to class cloth. (ii) Write the names of all members which are accessible from belonging to class design. (iii) Write the names of all the data members which are accessible from member functions of class costing. (iv) How many bytes will be required by an object belonging to class design? 1. What is abstract Class. 2.How will you decide when to derive a class publicly or privately? i)name the all protected members of class Food_products. ii)name the member functions accessible through the object of class Food_products. iii)from the following, Identify the member function(s) that cannot be called directly from the object of class Cosmetics show() getd() get() iv)if the class cosmetics inherit the properties of food_products class also, then name the type of inheritance. 1. Answer the questions (i) to (iv) based on the following code class engineering private: char streamcode[5]; protected: int seats; void allot(); engineering(); void streamread(); void streamwrite(); class dept : protected engineering char deptname[20]; int strength; dept(); void deptread(); void deptwrite(); class course: public dept char coursename[20]; float fees; course(); void courseread(); void coursewrite(); (i)which type of inheritance is shown in the above example? (ii)how many bytes will be required by an object of the class dept and course? (iii)write the name of all the data members accessible from member functions of the class course. (iv)write the members which are accessible from the object of the class dept. 1. What are the two factors on which access of the inherited members depends?

8 Read Chapter 14 ( ) and prepare short notes on the following Points What is Network? Need for Networking? Netwok Goals Application of Networks Evolution of Networking (ARPANET,INTERNET,Interspace) Elementary Terminology of network Switching Techniques (Message,Packet,Circuit) Transmission Media, Guided and Unguided Media, About Cables Data Communication Terminologies Types of Networks (LAN,MAN,WAN) Network Topologies Networking Devices Communication Protocols Wireless/Mobile Computing Networkorking terms and concepts Introduction to open source based software Concept of Network Sceurity Viruses Give fullforms of the following: A) CDMA B) GSM C) FTP D) SLIP E) TCP/IP F) WLL G) EDGE H) FLOSS I) GNU J) FSF K) POP L) SMTP M) NTP N) IMAP O) PPP P) NFS What do you understand by the term Freeware and Shareware? Write a note on Apache server. Write the components of Mozila/Apache software suite. Write down any two applications of PHP. Explain W3C. 40 Prepare yourself for the School Happy Vacations!!! GOD Bless!!!

K.V. NO 1 ARMAPUR Computer Science- XII Summer Vacation Home Assignment

K.V. NO 1 ARMAPUR Computer Science- XII Summer Vacation Home Assignment-2016-17 By- Computer Science Home Assignment 2016-17 Created By-S.K.Verma, PGT CS HOME ASSIGNMENT FOR SUMMER VACATION 2016-17 FIRST