ITL Public School First Term( )

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ITL Public School First Term(06-7) Date:9.09.6 Class: XI Computer Science(08) Time: hrs. M. M: 70 General Instructions: There are 7 questions in total.

1 ITL Public School First Term(06-7) Date: Class: XI Computer Science(08) Time: hrs. M. M: 70 General Instructions: There are 7 questions in total. Marks are given against all the questions Try to give examples wherever possible a)name the header files that shall be included for the successful compilation of the following code snippet in C++: char str[0],c; gets(str); strcat(str, AISSCE 0 ); puts(str); cout<<isupper(c); b)rewrite the following program after removing the syntactical errors (if any). Underline each correction. #include <iostream.h> struct Graphics int X_Value,Y_Value; Graphics Point=(5,); ShowPoint(Point); Graphics Point=Point; X_Value.Point+=; ShowPoint(Point); void ShowPoint(graphics P) cout<<p.x_value<<p.y_value>>endl; XI of 5

2 c)give the output of the following program segment(assume all required header files are included in the program) : i) void Secret(char Str[0]) for (int L=0;Str[L]!='\0';L++); for (int C=0;C<L/;C++) if (Str[C]=='A' Str[C]=='E') Str[C]='#'; else char Temp=Str[C]; Str[C]=Str[L-C-]; Str[L-C-]=Temp; void main() char Message[0]="PARLE INDIA"; Secret(Message); puts(message); ii)#include<iostream.h> int a=; void demo(int x, int y, int &z) a += x+y; z = a+y; y += x; cout<<x<<y<<z<<endl; int a=, b=5; demo(: :a, a, b); cout<<: : a <<a<<b<<endl; demo(: : a, a, b ); iii) char s[ ] = "GOODLUCK"; for (int x = 0;x<strlen(s) ; x>=0; x ) for ( int y=0; y<=x; y++) cout<<s[y]; cout<<endl; XI of 5

3 iv)study the following program and select the possible output(s) from the outputs given below: #inlude<iostream.h> #include<conio.h> #include<stdlib.h> const int LIMIT = 4; randomize( ); int Points; Points = 00 + random(limit); for ( int p = Points; p>=00; p--) cout<<p<< # ; cout<<endl; A. 0#0#0#00# B. 0#0#0#00 C. 0#0#0#04# D. 0#0#0#00# a) Write a function named SUMFUN( ),which accepts an argument N and which calculates returns the sum of N terms of the following series : +( + )+( + +5 )+.upto N terms. b) Write a function Divbyor( ) which accepts a -Dimentional integer array ARR,number of rows(r) and number of columns(c) as parameter.calculate and return sum of those array elements which are either divisible by or. c) Write a program to find and display the length of the string using pointers. d) Define a function SWAPARR( ) in C++ to swap (interchange) the first row elements with the last row elements for a two dimensional integer array,which along with number of rows(r) and number of columns(c) passed as parameter to the function. Example: If the two dimensional array contains After swapping of the content of first row and last row, it should be as follows: XI of 5

4 a)arrange the following operators according to their operator precedence(higher to lower) in C++:?: && + % b)identify the valid identifier(s) and state reason for invalid identifiers: i. Temp_variable ii. Breakint iii. _int iv. Variable0 c)evaluate the following C++ expression: 4 i. P=a<b&&c*d<e where a=6,b=,c=,d=4,e=7 ii. X=5*4/(+5*/+6)+8*4/7 iii. A=++c + c++,where c=0 iv. B=++r/r++,where r=4 d)explain the following C++ function prototypes: i. int* salary(char[0]); ii. char& calculate(int *,float&); iii. void travel(int *p[5],char q[0]); e)write the description for the following built-in functions in C++: i)exit( ) ii)getch( ) 4 a)an array ARR[0] declared in memory,with each element occupying 4 bytes of memory.if base address of array is 000.What is the address of element ARR[6]. b)how many elements does array KEY[0][9] contains? c)change the following C++ code snippet using while loop without affecting the output: void ArrayFormat(int ARR[50], int N) for (int i = 0; i < N; i++) for (int j = 0; j<n-i; j++) ARR[j]=ARR[j]+j; if(j<=n) ARR[j] = 0; d)declare a structure Play in C++ with the specifications given below. Create and initialise structure variable with valid values : Data Members of class Play Playcode integer Playtitle 5 character Duration float XI 4 of 5

5 5 Define : 0=0 a) Keywords b) Conditional operator c) Goto d) Setw ( ) e) Pointer to a constant f) Fallthrough g) Default argument h) Base Address i) Reference Variable j) Structure 6 Difference between: 6= a) Class and Union b) While and Do while c) Actual Parameter and Formal Parameter d) Local and Global variable e) Manipulative and computational Functions f) a and a 7 Answer the following questions: 7=4 a) How break is different from continue? b) What is the difference between the call by value and call by reference? Give an example in C++ to illustrate both. c) What are the various types of errors associated with a program? d) Explain various types of type conversion in detail. e) What are the various types of functions in C++. f) What is function prototype and why it is required. g) Is it possible to pass an array by value? State reason to justify your answer. XI 5 of 5

KENDRIYA VIDYALAYA PANGODE MONTHLY TEST I JUNE 2015 CLASS XII COMPUTER SCIENCE Time allowed: 1 1/2 Hours Max. Marks: 50

KENDRIYA VIDYALAYA PANGODE MONTHLY TEST I JUNE 2015 CLASS XII COMPUTER SCIENCE Time allowed: 1 1/2 Hours Max. Marks: 50 General Instructions: 1. All questions are compulsory. 2. Marks for each question