Plus One Computer Application Previous Year Question Paper 2017

Kerala Plus One Computer Application Previous Year Question Paper 2017

Time: 2 Hours
Cool off time: 15 Minutes
Maximum: 60 Scores

General Instructions to candidates

• There is a ‘cool off-time’ of 15 minutes in addition to the writing time of 2 hrs.
• Use the ‘cool off time’ to get familiar with the questions and to plan your answers.
• Read questions carefully before you answering.
• Read the instructions carefully.
• Calculations, figures, and graphs should be shown in the answer sheet itself.
• Malayalam version of the questions is also provided.
• Give equations wherever necessary.
• Electronic devices except non-programmable calculators are not allowed in the Examination Hall.

Question 1.
Processed data is known as ………….
a. facts
b. figures
c. information
d. raw material

Question 2.
USB port stands for ……………..

a. Uniform Serial Bus
b. Universal Serial Bus
c. Uninterruptable Serial Bus
d. Updatable Serial Bus

Question 3.
Fill the missing block.

Question 4.
Which one of the following is NOT a search engine?

a. Google
b. Bing
c. Facebook
d. Ask

Question 5.
In ICT enabled services BPO stands for

Question 6.
for, while do while are the three looping statements in C+ +. From these three loops which loop will execute the loop body at least once even though the condition is false?


a. for loop
b. while loop
c. do while loop
d. do for loops

Question 7.
HTTP stands for a ………………. protocol.

Question 8.
IDE stands for …………..

a. Integrated Development Environment
b. Information Development Environment
c. Inheritance Development Environment
d. Interactive Development Environment

Question 9.
Let X and Y are two variables of int data type, then correct the following input statement.

Question 10.
In a flowchart, the terminal (an ellipse) symbol is used to indicate the ……………… and …………… in the program logic.

Question 11.
A ……………….. is a computer peripheral that allows you to connect and communicate with other computers via telephone lines.

Question 12.
Differentiate or define the terms Hardware (h/w) and software (s/w) in a computer system. Give one example for each.

Question 13.
a. Convert (1010.11)₂ to decimal.
b. Find the missing terms in the following series. (18)₁₆, (1A)₁₆, (1C)₁₆ ………………., ……………….

Question 14.
Predict the output of the following operations. x = – 5 and y = 3 initially,

Consider the following statement.

int Length;
Then what is the difference between (a) and (b)?

a. Length = 50
b. Length ==50

Question 15.
Arrange the following memory or storage devices on the base of their operation speed in ascending order.

a. Hard disk
b. Cache
c. RAM
d. Registers

Question 16.
List the different stages in programming.

Question 17.
Classify the following identifiers valid or invalid. If invalid, give a reason.

a. Length_l
b. _Lengthl
c. Length 1
d. 1 Length

Question 18.
A part of biodata of a student is given. Identify the data types which we can use to store and process these data.

RolIJMumber : 34
Age : 17
Sex : M
Mob_Number : 8181818181
Height_in_Cm : 152.8
Rncode : 690601

Question 19.
State whether the following statements are true or false. If false, give a reason.

a. break statement is essential in a switch.
b. for loop is an entry controlled loop.
c. do while loop is an entry controlled loop.
d. the switch is a selection statement.

Question 20.
URL stands for Uniform Resource Locator. Every resource on the internet has a unique URL. Then classify the following URL on the basis of

http://www.dhsekerala.gov.in/index.html
a. Network protocol
b. Domain name
c. Filename

Question 21.
How is a WAN different from a LAN?

Question 22.
If a = 5, b = 4, c = 3, d = 4, then what is the result in X after the following operation ?

Is there any difference between (a) and (b) by considering the following statement?

a. Gender = ‘M’;
b. Gender = ‘M’;

Question 23.
Your friend Ravi purchased a new PC for his personal use. Mention the components required to connect this PC to the internet.

Question 24.
Compare the advantages and disadvantages of implementing eBusiness.

Question 25.
Compare Dot Matrix Printer (DMP), inkjet printer, laser printer, and thermal printer on the basis of their working speed, quality of printing and expense for printing.

Dot Matrix Printer (DMP), inkjet printer, laser printer, thermal printer.

Question 26.
Rewrite the following code using else if ladder.

# include<iostream> 
using namespace std; 
int main()
{
int colour;
cout«“Enter a number between 1 and 4 : ";
cin»colour;
switch(colour)
{
case 1:
cout<<“Red”; 
break; case 2:
cout<<“ Green"; 
break; case 3:
cout<<“Blue”;
break;
default:
cout<<“Wrong input”;
}
}

OR

Write a C++ program to find the biggest number from 3 given numbers.

Answers

Answer 1.
c. Information

Answer 2.
b. Universal Serial Bus

Answer 3.
Compiler / interpreter / assembler /language processors

Answer 4.
c. Facebook

Answer 5.
Business Process Outsourcing

Answer 6.
c. do while loop

Answer 7.
Hyper Text Transfer Protocol

Answer 8.
a. Integrated Development Environment

Answer 9.

cin>>X>>Y;

Answer 10.
Start and Stop

Answer 11.
MODEM

Answer 12.
Hardware is the tangible and visible parts of a computer, which consists of some electromechanical components, eg., keyboard, mouse. The software is a set of programs that help us to use the computer system for our needs, eg., Operating system, language processors.

Answer 13.
a. (1010.11)₂ = 1 × 2³ + 0 × 2² + 1 × 2¹
+ 0 × 2°+ 1 x 2¹ + 1 × 2²
= 8 + 0 + 2 + 0 + 1/2 + 1/4
= 10 + 0.75
= 10.75
b (1E)₁₆, (20)₁₆

Answer 14.
a. 5
b.1
c.2
d. 2

OR

a. The value 50 will be stored in the variable Length (ie., assignment operation).
b. The value 50 and the value of Length will be compared.

Answer 15.
Hard disk, RAM, Cache, Registers

Answer 16.

1. Problem identification: During this phase, you will be able to identify the data involved in processing, its type and quality, a formula to be used, activities involved and the output to be obtained.
2. Preparing algorithms and flowcharts: Once the problem is identified, it is necessary to develop a precise step-by-step procedure to solve the problem.
3. Coding the program: The process of writing program instructions to solve a problem is called coding. The program written in any HLL is known as source code.
4. Translation: It is the process of converting a program written in the high-level language into its equivalent version in machine language. The compiler or interpreter is used for this purpose.
5. Debugging: In this stage, programming errors are discovered and corrected. Programming errors are known as ‘bugs’ and the process of detecting and correcting these errors is called debugging.

Answer 17.
a. Valid
b. Valid
c. Invalid; White space is used.
d. Invalid; the First letter is a digit.

Answer 18.
Roll_Number: int
Age: int
Sex: char
Mob_Number: long int
Height_in_Cm: float
Pincode: int/long int

Answer 19.
a. True
b. True
c. False; do while loop is an exit controlled loop
d. True

Answer 20.
a. http
b. dhsekerala.gov.in
c. index.html

Answer 21.
Wide Area Network (WAN). This is used to connect computers over a large geographical area. It is a network\of network. Here the computers are connected using telephone lines or microwave station or satellites. The error rate in data transmission is high, eg., internet. Local Area Network (LAN). This is used to connect computers in a single room or buildings of one location by using twisted pair wire or coaxial cable. Data transfer rate is high and an error rate is less.

Answer 22.
-3
OR
a. It is true. The variable is a type of char and the value assigned is a character value.
b. This statement is wrong. The variable is a type of char and the value assigned is a string.

Answer 23.
The following are the requirements for connecting a computer to the Internet:
1. (NIC) and an operating system that supports TCP/IP.
2. Modem
3. Telephone connection
4. Internet account of any ISP (Internet Service Provider)
5. Software for browsing.

Answer 24.
The major advantages of using e-Business applications are:

• With e-Business, you can buy and sell products from anywhere.
• eBusiness reduces the operational cost.
• It minimizes travel time and cost. Challenges to eBusiness:
• Most of the people are unaware of online business and its possibilities or they do not know how to conduct this.
• Most of the people from rural areas do not have plastic money (debit card, credit card) which is necessary for eBusiness.
  If not used with caution your valuable information like credit card no., password etc. may lose.

Answer 25.

1. Dot matrix printers use small electromagnetically activated pins in the print head and an inked, to produce images by an impact. These printers are slow and noisy.
2. Inkjet printers form the image on the page by spraying tiny droplets of ink from the printed head. The printer needs several colors of ink. These are inexpensive, but the cost of ink cartridge makes it a costly.
3. Laser printer produces good quality output. The image to be printed is transferred to a drum using a laser beam. The toner powder from the toner cartridge is then sprayed on the drum. The toner powder sticks onto the portions traced the drum by the laser beam. It is transferred to a paper by rolling the paper on the drum. Through heating, the powder is fused on to the paper. Laser printers are faster and their speed is in page per minute (ppm).
4. The thermal printer produces a printed image by selectively heating heat-sensitive when it passes over the thermal print head.

Answer 26.

# include<iostream>
using namespace std;

int main()
{
int colour;
cout<<“Enter a number between 1 and 4:";
cin»colour; if (colour==1)
cout<<“Red”;
else if (colour==2)
cout<<“Green”; 
else if (colour==3) cout«“Blue";
else
cout«“Wronginput”; 
return o;
}

OR

#include<iostream> using namespace std; 
int main() 
{
int a, b, c;
cout<<“Enter three different numbers:”; 
cin >> a >> b >> c ; 
if (a > b)
{
if (a > c)
cout<<“The largest number is:”« a; 
else
cout<<“The largest number is:”<<c;
}
else
{
if (b > c)
cout<<“The largest number is:”«b; 
else
cout<<“The largest number is: ”<<c;
}
return O;
}

Plus One Computer Application Previous Year Question Papers and Answers