Article I. Subject : Class XII Computer Science Unit I : PROGRAMING IN C++

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Article I. Subject : Class XII Computer Science Unit I : PROGRAMING IN C++ Article II. Chap 1 : C++ Revision Tour 1. What is mean by token? Which tokens are available in C++? 2.

1 Article I. Subject : Class XII Computer Science Unit I : PROGRAMING IN C++ Article II. Chap 1 : C++ Revision Tour 1. What is mean by token? Which tokens are available in C++? 2. List four built in data types available in C What is an identifier? List the rules of naming identifiers in C What is meant by a floating constant in C++? How many ways can a floating constant be represented into? 5. Explain the difference between (i) 0, 0, \0 and 0 (ii) 33L and What is a reference variable? How is it defined in C++? What is its use? 7. What is the purpose of comments and indentation in a program? 8. Name the header files to which following built-in functions belong to : (i) strcpy() (ii) gets() (iii) strcmp() (iv) getc() (v) write() (vi) arc() (vii) open() (viii) strlen() (ix) get() (x) abs() (xi) strcat() (xii) isalnum() 9. What is the principal reason for : (i) passing arguments by value? (ii) passing arguments by reference?

2 10. What is the difference between the global and local variable? 11. What do you mean by function prototyping? Write down the advantages of function prototypes in C Write a C++ program to read a line of text from the keyboard and display the following information on the screen : (i) Number of words (ii) Number of characters 13. Write a program to find the LCM and GCD of two numbers. 14. Write a program to sum a sequence 1 + 1/1! + 1/2! + 1/3! Write a program to show the greatest number from the given three numbers. Article III. Chap 2 : OOP Concepts 1. Explain the transitive nature of inheritance. 2. Illustrate the concept of inheritance with the help of an example. 3. Define the terms : (i) encapsulation (ii) abstraction (iii) polymorphism (iv) data hiding 4. How is data hiding implemented in C++? 5. What is abstract class? What is concrete class? 6. Write two major differences between Object Oriented Programming and Procedural Programming. 7. What is an object? What is a class? How is an object difference from a class? 8. What is Object Oriented Programming paradigm? 9. Name the four basic concepts of OOPs. 10. How is polymorphism implemented in C++? Article IV. Article V. Article VI. Chap 3 : Function Overloading 1. What is the role of function signature in disambiguation process? 2. What is function overloading? 3. Write a C++ program that uses a function to check whether a given number is divisible by another number or not. However, if the second number is missing the function checks whether the given number is prime or not. 4. How would you compare default argument and function overloading? 5. How does the compiler interpret more than one definition having same name? What steps does it follow to distinguish this? 6. With the multiple definitions of single function names what makes them significantly different? 7. Write overloaded prototypes of inquote(), a function that displays its argument enclosed in double quotation marks. Write three versions : one for an int argument, one for two int values and one for a char argument. 8. A function printchar is defined as void printchar(char ch = *, int len = 40) {

3 for (int x = 0; x < len; x++) cout << endl; cout << ch; } How will you invoke the function printchar for following output : (i) to print * 40 times (ii) to print * 20 times (iii) to print = 40 times (iv) to print = 30 times Article VII. Chap 4 : Classes and Objects 1. What is the purpose of class specifier (declaration)? 2. What are objects? How are they created? 3. What do you understand by a nested class? 4. How does a class accomplish data abstraction and encapsulation? 5. When we do declare a member of class static? How are static members different from non static members of a class? 6. What is the significance of a scope resolution (::) operator? 7. When will you a function inline and why? 8. Define a class to represent a book in a library include the following members : Data members : Bookno, Book name, Author, Publisher, Price, No of copies, No of copies issued Member function : 1. To assign an initial value 2. To assign a book after checking for its availability 3. To return a book 4. To display book information 9. Declare a class to represent a bank account of 10 customers with the following data members : Name of the Depositors, A/c No, Type of A/c (S for saving, C for current), Balance amount The class also contains member functions to do the following : 1. To initialize the data members. 2. To deposit the money. 3. To withdraw money after checking the balance (min balance is 1000) 4. To display the data members. 10. Define a class of student with the following specifications : Private members of class student

4 Admno integer Sname Eng, math, science Total 20 characters float float Ctotal() A function to calcuate eng + math + science with float return type Public member functions of class student Takedata() function to accept values for admno, sname, eng, math, science and invoke ctotal() to calculate total, showdata() function to display all the data members on the screen. 1. ial transmission media? KENDRIYA VIDYALAYA No-1 Delhi Cantt (IP) Q1. a) Mr. sinha is interested in transferring songs from his mobile to Mr. Shyam s mobile. Suggest two Suitable wireless options he may use for doing the same. b) What are the following softwares used for? (i) PHP (ii) MySQL c) Arrange the following communication channels in the ascending order of their data transfer range. (i) Optical Fiber (ii) Coaxial cable (iii) UTP cable d) Write any four scripts included in Unicode. e) Identify the type of Topology from the following: (i) If each node is connected with the help of independent cable with the help of a central switching (communication controller) (ii) If each node is connected with the help of a single co-axial cable. f) Distinguish between Open Source software and Proprietory software with reference to customizability of the software. g) Samhita says that the following numbers indicate an address : What is the above address called? To which object/device is it assigned?

5 Q.2 a) Sugandha has developed a login form in Java. Which method will she use to obtain the password from a password field? c) Ms. Seema has developed a java application to get computerized result of the students of her school. She enters the marks in the textfields & corresponding percentage is calculated. But she forgets to write the command for conversion from string to Decimal format. Write the command. f) What will be the value of a and b after execution of the following code: int a=1,b=2; if( ++b <5) { a* = b; } g) Write a code in java to accept temperature in Celsius from the user and display the same in Fahrenheit. (Note : Fahrenheit = Celsius*9/5 +32) Q.3 a) If a database School exists, which MySql command help you to start working in that database. b) Differentiate between Primary key and Candidate key. c) Anju has created a table PARTICIPANTS(PNO, PNAME, CITY, CLASS). She wants to find out the names of participants who are not from Mumbai, Delhi and Ahmedabad. She tried the following : SELECT NAME FROM PARTICIPANTS WHERE CITY HAS NOT Mumbai, Delhi, Ahmedabad; Find out the error(s) and rewrite the above query after correction d) Table SPORTS has 4 rows and 3 columns. Table ACADEMICS has 3 rows and 4 columns. What will be the cardinality & degree of the Cartesian product of SPORTS & ACADEMICS? e) Ram has created a table SUPPLIER in a database. One of the columns in the table is Amount. Which keyword is used to enter only unique values? f) An amount consisting of stored in a string variable stramt. Now Mr. Saurabh wants to store it in double numeric variable dblamt Write a Java statement to do this. g)there is a column ITEM in a table SUPPLIER. The following two statements are giving different outputs. What may be the possible reason? SELECT COUNT(*) FROM SUPPLIER; SELECT COUNT(ITEM) FROM SUPPLIER Q 4 a) What will be displayed after executing the following code. String name = Chennai Express ; Int TM = name.length(),tn; TN = 80- TM; jtextfield1.settext(integer.tostring(tm)); jtextfield2.settext(integer.tostring(tn));

6 b) Rewrite the following program code using Switch Case Statements.. int option= Integer.parseInt(jtxt1.getText()); if (option == 1) jtxt2.settext( Regular employee ); else if (option == 2) jtxt2.settext( on probation ); else if (option == 3) jtxt2.settext( visiting faculty ); else if (option == 4) jtxt2.settext( on contract ); else jtxt2.settext( invalid option ); c) Write a Java statement to disable jtxt1. d) Given a string object namely 'Amount', having value as "500.75" stored in it. What will be result of the following: JOptionPane.showMessageDialog(null,(Amount.length()+Double.parseDouble(Amount))) e) The following code has some error(s). Rewrite the correct code underlining all the corrections made: int i = 1, j= 5; K=0; while (i<=3 & j>=1) { K + 5 = K; i++; } jtextfield1.displaytext(k); f) Sumit Garments has developed a GUI application for their company.the company accepts payments in 3 modes and give discounts correspondingly. Name of customer Bill amount Mode of payment O CASH O CHEQUE OCREDIT CARD Discount NetAmount MODE PAYMENT OF CASH 8 % CHEQUE 7% CREDIT CARD DISCOU NT Nil Calculate discount Calculate discount (i) Write the code to make the textfields for discount and netamount uneditable.

7 (ii) (iii) When Calculate discount button is clicked discount should be calculated as per criteria and displayed i textfield. Calculate netamount button should also be enabled. When Calculate netamount button is clicked the netamount is calculated and displayed in textfield. Q.5 a) Explain the purpose of DDL and DML statement. Give two examples of each. b) Write the output of the following SQL queries. (i) SELECT INSTR( CORPORATE FLOOR, OR ); (ii) SELECT MID( Welcome,3,4); (iii) SELECT SIGN(-15); (iv) SELECT ROUND(15.193,1); c) Write SQL commands for the queries given below on a table LIBRARY showing the details of Books : Table: LIBRARY SNo Title Author Subject Publisher Quantity Price 1 Data Structure Lipschute DS McGraw DOS Guide NORTRON OS PHI Turbo C++ RobortLafore Prog Galgotia Dbase Dummies Palmer DBMS PustakM Mastering Cowart OS BPB Computer Studies French FND Galgotia COBOL Stern Prog John W Guide Network Freed NET Zpress Basic for Norton Prog BPB Advanced Pascal Schildt Prog McGraw i. Display the title of all books with Price in the range 100 to 300. ii. Display the Author of all the books whose title starts with D. iii. Arrange all the books of library in increasing order of their quantity. iv. Display the detail of book written by RobortLafore. v. Change the price of all books by applying 10% discount reduction. vi. SELECT Title and Author FROM LIBRARY WHERE Price BETWEEN 200 AND 350; vii. SELECT MAX(Price ) FROM LIBRARY WHERE Publisher= McGraw ; Q.6 a) Write SQL command to create the following table structure. Table: COACH Field Type Constraint PCode Integer PRIMARY KEY Name Varchar(20) NOT NULL ACode Integer FOREIGN KEY which refers to

8 the Acode in Table Activity b) Consider the following tables Company and Model shown below. Table : Company Compid CompName CompHO CompPerson 1 Titan Okhla Arjun k. 2 Maxima Shahdara R.S.Agrawal 3 Anjata Najafgarh Dhiraj Goyel Table : Model ModelID CompID ModelCost T M M A T (1) Identify the foreign key in Model table and primary key in Company Table. (2) Check every value in CompID column of both tables.do you find any discrepancy? c) Consider the tables Doctors and Patient given below: Table : Doctors DocID DocName Department OPD_days 101 K.K.Mathur ENT TTS 102 Ashish Paed MWF Sharma 201 Vivek Khurana Ortho MWF Table : Patients PatNo PatName Department DocID 1 Akash ENT Sameer Ortho Rahul ENT 101

9 4 Neha Paed Manoj Ortho 201 With reference to these two tables, write a SQL query for (i) and (ii) and output for (iii). (1) Display Patient Name,Patient No and corresponding doctor name for each patient. (2) Display the list of all patients whose OPD_days are TTS. (3) SELECT OPD_days,count(*) FROM Doctors,Patients WHERE Doctors.Department = Patients.Department GROUP BY OPD_days; Q. a) Suruchi works in a Mart.She wants to create contros on a form for the following operations:- Choose appropriate controls out of TextBox,Command Button,Radio button,list Box,combo Box,label, Check Box. S.NO OPERATION 1 ENTER THE ITEM CODE 2 SELECT ITEM SIZE(FROM LIST OF SIZES) 3 ENTER QUANTITY 4 SUBMIT THE FORM

ECONOMICS CLASS XII 1. Learn each and everything done in the note book. 2. complete all the numerical of elasticity of demand chapter. 3. Read the remaining chapters of micro economics. 4.

10 ECONOMICS CLASS XII 1. Learn each and everything done in the note book. 2. complete all the numerical of elasticity of demand chapter. 3. Read the remaining chapters of micro economics. 4. Solve the question paper of cbse Delhi.(do questions only of the chapters done in class) 5. Read the new syllabus carefully from cbse website and the collect the information for topics assigned for project. 6. Make a PPT on any of the topic of your choice (having 12 to 15 slides).

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Downloaded from INFORMTIS PRTIES SMPLE PPER 2 TIME 3 HRS MM: 70 Q.1 Mr. Sinha is interested in transferring songs from his mobile to Mr. Shyam s mobile. Suggest two Suitable wireless options he may use for doing the same.