Optional II - कम्प्युटर बिज्ञान
उत्तरकुञ्जिका
| Q.No. | Answer | Marks |
| 1 | a. Two search enginers Google or Bing (Or any other satisfactory answer) |
1 |
| b. Social media is an internet-based interactive digital channel that can provide users quick electronic communication of content, such as personal information, documents, videos and photos | 1 | |
| c. OLE data type is suitable to store photographs of students in MS -Access | 1 | |
| d. Design view is used to modify a table in MS-Access | 1 | |
| e. Call statement | 1 | |
| f. int ,float(or any other correct answer) | 1 | |
| 2. | a. backup | 1 |
| b. Interent Service Provide(ISP) | 1 | |
| 3. | a. File Transfer Protocol | 1 |
| b. Metropolitan Area Network | 1 | |
| 4. | a. Connecting two or more computers using cable or without is called a computer network - Sharing of hardware and software resources - Chepaer communication | 2 |
| b. Software security is the method of protecting comptuer software, data and information from being lost or corrupted - Firewall - Backup | 2 | |
| c. A search engine is a web-based tool that is used to locate information on the internet. Some of the most popular examples of search engines are Google, Bing Yahoo, and MSN search (any two) | 2 | |
| d. E-commerce is the buying or selling of goods and services over the internet. - Electronic commerce will substantially lower the transfer cost. - It provides quick delivery of goods with very little effort on part of the customer. (any two) | 2 | |
| e. Advantages: 1. Brand development 2. Communication Disadvantages: 1. Fake account 2. confidential information may be leaked. | 2 | |
| f. A Data Management System(DBMS) is defined as a software system that allows users to define, create, maintain and control access to the database. DBMS makes it possible for end-users to create read, update and delete data in database. | 2 | |
| g. Primary keys are field or fields with values that are unique throughout a table when building an Access database. | 2 | |
| h. The term "field" refers to columns or vertical categories of data; the term "records" refers to rows or horizontal grouping of unique field data. | 2 | |
| i. A form in MS-Access is a database object that you can use to create a user interface for a database application. Using a form one can enter, edit or display data from a table or a query. | 2 | |
| 5 | Output : 2,5,8,11,14 | 2 |
| 6 | DECLARE SUB Series ( ) CLS CALL Series END SUB Series( ) REM Program to generate 1 1 2 3 5 .....upto the 20th terms A=1 B=1 FOR ctr= 1 to 10 OR 10 to 1 STEP-1 PRINT A;B; A=A+B B=A+B NEXT ctr END SUB | 2 |
| 7 | (a) One paramter (b) 100 times | 2 |
| 8 | (i) (FD)16 (ii) (11110101)2 (iii (110010)2 (iv) Q=(111)2 and R=(100)2 | 4 |
| 9a | DECLARE FUNCTION area(L,B) DECLARE SUB peri(L,B) CLS INPUT "Enter length";L INPUT "Enter breadth";B PRINT "Area=";area(L,B) CALL peri(L,B) END FUNCTION area(L,B) AREA = L * B END FUNCTION SUB peri(L,B) p = 2 * (L + B) PRINT "Perimeter=";p END SUB | 4 |
| 9b | CLS OPEN "salary.dat" FOR OUTPUT AS #1 DO INPUT "ENTER NAME "; N$ INPUT "ENTER SALARY";S INPUT "ENTER POST";P$ WRITE #1,N$,S,P$ INPUT "Do you want to continue Y/N?";ANS$ ANS$ = UCASE$(ANS$) LOOP WHILE ans$="Y" CLOSE #1 END | 4 |
| 10 | C program to check whether a number is positive, negative or zero
#include<stdio.h>
int main()
{
int n;
printf("enter a number ");
scanf("%d",&n);
if(n>0)
printf("%d is positive",n);
else if(n<0)
printf("%d is negative",n);
else
printf("%d is zero",n);
return 0;
} C Program to print first ten odd numbers #include<stdio.h> int main() { printf(" The first ten odd numbers are \n"); int oddno=1; for(int ctr=1;ctr<=10;ctr++) { printf("%d\n",oddno); oddno=oddno+2; } return 0; } | 4 |