Mission Examination : आइसीएसई कक्षा 10वीं के छात्र COMPUTER APPLICATIONS का माडल पेपर हल कर आंसर की से करें मिलान

पेपर टिप्स : अब कमियों को पहचानें और दूर करें

मेरठ, जागरण संवाददाता। सीआइएससीई के 10वीं टर्म-वन परीक्षा में कंप्यूटर एप्लीकेशन का पेपर बुधवार आठ दिसंबर को है। आइसीएसई में अधिकतर छात्र-छात्राएं 10वीं में इसी विषय को वोकेशनल विषय के तौर पर लेते हैं। छात्रों की तैयारी में मार्गदर्शन के लिए जरूरी सुझाव दे रही हैं सेंट मेरीज एकेडमी की कंप्यूटर शिक्षिका महिमा मसीह।

पढ़ें, अभ्यास करें और मूल्यांकन करें

इस सत्र में बदले पढ़ाई के पैटर्न में छात्र-छात्राओं को पहले ही अतिरिक्त मेहनत करनी पड़ रही है। ऐसे में सिलेबस पूरा कर टर्म-वन परीक्षा की तैयारियों में भी छात्र दो महीने से जुटे हैं। ऐसे में अब समय है अपनी कमियों को खोजकर उन्हें पूरी तरह से दूर करने की। इस विषय की परीक्षा के लिए अब जो भी समय शेष रह गया है उसके जरूरी है कि छात्र माडल पेपर को निर्धारित समय में हल करने के दौरान अपनी कमियों को चिन्हित करने की कोशिश करें। जो कमियां मिले उन्हें अगले पेपर को हल करने में न दोहराएं। फिर भी वह कमी रह जाए तो शिक्षकों से संपर्क करें और अपनी पकड़ को मजबूत करें।

विषय पर पकड़ ही मददगार

बार-बार पढऩे के बाद भी यदि स्वमूल्यांकन में गलतियां हो रही हैं तो आपको विषय पर और अधिक पकड़ की जरूरत है। इसलिए याद करने की बजाय बिंदुओं को गहराई से समझने की कोशिश करें। एक बार विषय का कांसेप्ट समझ में आ गया तो प्रश्न कैसा भी पूछा जाए आप आसानी से उत्तर दे सकेंगे। ध्यान रखें कि परीक्षा केवल आपके एक विषय में जानकारी को परखती है। इससे आपके इंटेलिजेंस का आंकलन नहीं होता है। यह आपकी उस विषय में क्षमता को परखता है। उसी के अनुरूप अपनी तैयारी को धार देते हुए अपनी क्षमता को बढ़ाएं।

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ICSE Model Paper CLASS X

Subject : COMPUTER APPLICATIONS

Maximum Marks : 50 Time allowed: One hour(inclusive of reading time)

ALL QUESTIONS ARE COMPULSORY.

The marks intended for questions are given in brackets [ ]

Select the correct option for each of the following questions.

SECTION A (30 Marks)

Question 1

Choose the correct answer [5x1]

(a) Which among the following is used to represent single-line comment? 1. // 2. * 3. \\ 4

(b) What is the order of precedence (highest to lowest) of following operators?

(i) ( ) (ii) * (iii) ?:

1. 1 -> 2 -> 3 2. 2 -> 1 -> 3 3. 3 -> 2 -> 1 4. 3 -> 1 -> 2

(c) What does the following code fragment print?

System.out.println(1 + 2 + "abc");

System.out.println("abc" + 1 + 2);

1. 3abc

abc12

2. 12abc

abc12

3. 3abc

abc3

4. 12abc

abc3

(d) Give the output of : Math.ceil(3.4) + Math.pow(2, 3)

1. 10.0 2. 11.0 3. 12.0 4. 13.0

(e) Which of the following are the most common run-time errors in Java programming.

(i) Missing semicolons

(ii) Dividing an integer by zero

(iii) Converting invalid string to number

1. i and ii only 2. ii and iii only 3. iii and i only 4. ii only

Question 2

Fill in the Blanks with the correct option [5x1]

(a) The _________ statement is used to avoid fallthrough.

1. switch 2. break 3.return 4.continue

(b) The __________ operator is used to access the individual members of the class.

1. .(dot) 2. new 3. : 4. ->

(c) The ______ function of the BufferedReader class is used to accept a character from the user.

1. read(); 2. readchar(); 3. parseChar(read()); 4. next().charAt(0);

(d) 0.2 is a _________ token.

1. float literal 2. double literal 3. identifier 4. punctuator

(e) Range of Byte Data Type is ____________.

1. -128 to 128 2. -127 to 128 3. -127 to 127 4. -128 to 127.

Question 3

Name the following: [5x1]

(a) The characteristics of an object represented in a class are:

1. Access Specifiers 2. Data Members 3. Member functions

(b) Encapsulation is implemented in a program by

1. Using a class 2. Using only functions 3. Using only variables

(c) The function name along with the parameter list in a function definition is called

1. Function Header 2. Function Prototyping 3. Function Signature

(d) The parameters of the function given in function prototype are called

1. formal parameters 2. actual parameters 3. arguments

(e) Java compiler converts Java source code into a code called

1. Object Code 2. executable code 3. Byte code

Question 4

State True or False [5x1]

(a) When a message is to be displayed along with a variable ,they must be separated with a ‘+’ sign.

1. True 2. False

(b) Multiplication and Division have the same precedence.

1. True 2. False

(c) Every object has a separate copy of the static variable.

1. True 2. False

(d) A constructor can be invoked using an object and dot operator like any other member function.

1. True 2. False

(e) The + operator is left associative.

1. True 2. False

Question 5

Choose the odd one [5x1]

(a) 1. public 2. private 3. static 4. protected

(b) 1. <= 2. >= 3. == 4. =

(c) 1. java.lang 2. java.io 3. java.util 4.java.awt

(d) 1. class 2. double 3. array 4. interface

(e) 1. double d=Math.ceil(7.6); 2. double d=Math.round(7.6); 3.. double d=Math.rint(7.6);

4. double d=Math.floor(7.6);

Question 6

Give the output of the following: [5x1]

(a) What is the value in choice?

int a=5, b=10, c=15;

int choice=(a>b && a>c) ? a : b>c ? b : c ;

1. 5 2. 10 3. 15

(b) What value is assigned to discount?

double discount;

char code=’b’;

switch(code)

case ‘a’:

case ’A’: discount=0.0;

break;

case ‘b’:

case ’B’: discount=0.1;

default: discount=0.2;}1. 0.0 2. 0.1 3. 0.2

(c) class Test1

{

public static void main(String s[])

{

float f = 75.0f;

double d = 75.0;

int i = 75;

if( f == d )

{

if( f == i )

{

System.out.println("f, d and i are equal");

}

else

{

System.out.println("f, d are equal but i is not equal");

}

}

else

{

System.out.println("f and d are not equal");

}}}

1. f,d,i are equal 2. f,d are equal but i is not equal 3. f and d are not equal

(d) If s=”123” which among the following would convert in into an integer

1. int a = (int)s; 2. int a = Integer.parseInt(s); 3. int a = parseInt(s);

(e) int time=50;

do

{ System.out.print(time+ “ ”);

time++;}while(time<53);

1. 50 50 50 2. 50 51 52 3. 51 52 53.

SECTION B (20 Marks)

Question 7

Given below is a class with the following specifications:

Class name : overload

Member Methods:

long power(int m) –to return the square of m

long power(int m,int n)—to raise the number m to power n and then returns the result

Fill in the blanks of the given program with appropriate java statements—

class overload

{

long power(int m)

{

(a)_____________;

}

long power(int m,int n)

{

long product = (b)_______;

for(int i=1;(c)_________;(d) _______)

{

(e)_________________;

}

(f)___________;

}

}

(a) 1. int p=m*m; 2. System.out.print(m*m); 3. return m*m [1]

(b) 1. 0 2. 1 3. n [1]

(c) 1. i < n; 2. i <= n 3. i < m [1]

(d) 1. i++ 2. i=i++ 3. i- -; [1]

(e) 1. product=m*n 2. product=product*m 3. product =product*n [1]

(f) 1. System.out.println(product) 2. return product 3. return product*m [1]

Question 8

Create a class name Check having the following:

Data members: c of char type.

public member functions:

i. Parameterised constructor to initialise it with a character.

ii. check() method which returns true if the character is in uppercase else returns false.

iii. convert() method which converts the character in opposite case ie if it is an upper case then it converts it into lower case and vice versa and returns the converted character.

Also create a main() and call the member methods.

import java.util.*;

class Check

{

char c;

public Check(char x)

{

(a)__________

}

public (b)_______ check()

{

if(c>=’A’ && c<=’Z’)

(c )___________

}

public char convert()

{

if(c>=’A’ && c<=’Z’)

(d)___________

return c;

}

public static void main()

{

char x;

Scanner sc=new Scanner(System.in);

System.out.println(“Enter a character:”);

x=sc.next().charAt(0);

Check ob= new Check();

if((e)___________==true)

System.out.println(“Uppercase”);

else

System.out.println(“Not in upper case”);

System.out.println(“Converted character is “ +(f)__________);

}}

(a) 1. c=’ ‘ ; 2. c=x; 3. x=c; [1]

(b) 1. int 2. String 3. boolean [1]

(c) 1. return true; [1]

else

return false;

2. return false;

else

return true;

3. return 0;

else

return 1;

(d) 1. c += 32; [1]

else

c -=32;

2. c -=32

else

c +=32

3. c =97

else

c =65

(e) 1. ob.check(x) 2. check() 3. ob.check() [1]

(f) 1. convert() 2. c 3. ob.convert() [1]

Question 9

The following program segment checks whether a given number is abundant or not. An abundant number is a number for which the sum of its proper divisors is greater than the number itself.

Example : The integer 12 is an abundant number. Its proper divisors(excluding the no itself) are 1, 2, 3, 4 and 6 for a total of 16. (16>12)

Fill in the blanks with appropriate Java statements.

class abundant{

public static void main(int num)

{ int n,sum=(a)_____;

for(n=1;(b)________;n++)

{ if((c)___________)

sum=sum+n;}

if((d)____________)

System.out.println(“It’s an abundant number”);

else

System.out.println(“It’s not an abundant number”);}}

(a) 1. 0 2. 1 3. n; [1]

(b) 1. n<=num 2. n

(c) 1. n%num==0 2. num%n==0 3. num%n!=0 [1]

(d) 1. sum==num; 2. sum>=num; 3. sum>num [1]

Question 10

Read the paragraph given below and answer the questions given below:

Case Study 1

A constructor is a member function that is automatically called, when the object of that class is created. It has the same name as that of the class name and its primary job is to initialise data members with legal initial values. A constructor that accepts no parameters is called non parameterized constructor. Non parameterized constructors that initialize the instance variables to their default values are called Default Constructors. Implicit default constructors are created by Java if the user does not create a constructor.Explicit default constructor is a non parameterized constructor defined by the user to initialize the instance variables to their default values .

A parameterized constructor accepts parameters which initialize the various instance data members of the class.

(a) What is true about constructor? [1]

1. It can contain return type. 2. It can take any number of parameters

3. It is explicitly invoked by the object of the class.

(b) Java constructor overloading follows ______ principle in Object-Oriented programming. [1]

1. Inheritance 2. Encapsulation 3.Polymorphism

(c) A constructor that is used to initialize the instance variable of an object by copying the initial values of the instance variables from another object is called ________ [1]

1. default constructor 2. parametirized constructor 3. copy constructor

(d) What is the output of the below Java program with many constructors? [1]

public class Constructor7

{ Constructor7(int a)

{System.out.println("Book=" + a); }

Constructor7(float a)

{ System.out.println("Pen="+ a ); }

public static void main()

{ Constructor7 con = new Constructor7(50.5f); }

1. Book=50 2. Book=50 3. Pen=50.5

Pen=50.5

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आइसीएसई के कक्षा 10 के COMPUTER APPLICATIONS के ऊपर दिए माडल पेपर की आंसर की नीचे दी गई है।

Section A

Question 1

(a) 1

(b) 1

(c) 1

(d) 3

(e) 2

Question 2

(a) 2

(b) 1

(c) 4

(d) 2

(e) 4

Question 3

(a) 2

(b) 1

(c) 3

(d) 1

(e) 3

Question 4

(a) 1

(b) 1

(c) 2

(d) 2

(e) 1

Question 5

(a) 3

(b) 4

(c) 1

(d) 2

(e) 4

Question 6

(a) 3

(b) 3

(c) 1

(d) 2

(e) 2

Section B

Question 7

(a) 3

(b) 2

(c) 2

(d) 1

(e) 2

(f) 2

Question 8

(a) 2

(b) 3

(c) 1

(d) 1

(e) 3

(f) 3

Question 9

(a) 1

(b) 2

(c) 2

(d) 3

Question 10

(a) 2

(b) 3

(c) 3

(d) 3