CBSE Class 12 Informatics Practices Sample Paper 2014 (8)

CBSE Class 12 Informatics Practices Sample Paper 2014 (8). Revision worksheets, Sample papers, Question banks and easy to learn study notes for all classes and subjects based on CBSE and NCERT guidelines. Students and parents can download free a collection of all study material issued by various best schools in India. The study material has been carefully compiled by the best teachers in India. The students should practice the questions database to get better marks in examination. Please refer to other links for free download of high quality study material. Based on CBSE and NCERT guidelines. Based on the same pattern as released by CBSE every year. Study material for final/ term/ SA1/ SA2 Examinations conducted by various schools affiliated to Central Board of Secondary Education (CBSE) in India and abroad. CBSE Study material has been compiled to help students preparation which will helps the students to concentrate more in areas which carry more marks.

Q 1.Answer the following questions:

a) What type of network would you suggest for the following type of requirements in an organization?

i) Around 200 computers in two different buildings adjacent to one another are to be connected.

ii) The cost of network should not be very high.

iii) It should be fairly easy to implement. 

b) Mr. Vasu is transferring data to a large distance via cable connection and he wants to amplify the signal transmitting over a network. What device will be useful for him?

c) What do you mean by network topology? Write one advantage and one disadvantage of star topology. 

d) What is freeware? How is it different from free software? 

e) Which of the following technologies require line-of site between the transmitter and receiver?

a) Satellite b) Fiber Optic c) Microwave d) Co-axial Cable 

f) What is openoffice.org? 

g) Which protocol is used for transfer files over the internet? 

Q 2. Answer the following questions.

a) Mr. Nayak has developed a Java application for a school, in which, a combo box is made on the form for selecting class. Name the property which Mr. Nayak should use to add the class’s data in combo box.

b) Name the statements used for decision making in Java. 

c) Differentiate between <UL> and <OL> tags with example.. 

d) What is XML-document system?

e) What will be the output of the following code?

StringBuffer city=new StringBuffer(“Delhi”);

StringBuffer string=new StringBuffer();

string.append(new String(city));

string.insert(0,”Central”);

System.out.println(string); 

f) Write a method in Java that takes a number as parameter and returns True if the number is prime otherwise returns False. 

g) What are the use of the following tags-

<TITLE>, <A>, <BR>, <U> [2]

Q 3. a) Which MySQL command helps you to create database if it does not exist? 

b) How can we see the list of existing tables? 

c) Rajan created a table named Item, he wants to see those Items whose price is between 200 and 800. He wrote a query-

SELECT * FROM Item WHOSE price>200 OR <800;

Help Rajan to run the query by removing the errors from the query by rewriting it. 

d) Sanket wants to implement referential integrity in the tables being created. Which constraint should be used by Sanket while doing so? 

e) What is the role of primary key in the table? Explain with the help of suitable example. 

f) Room_No, Cust_Name, Room_Type and Room_Rent of table “HOTEL” are given below:

CBSE Class 12 Informatics Practices Sample Paper 2014 (8)

Based on this information, find output of the following queries:

a) SELECT Room_Type, SUM(Room_Rent) FROM hotel GROUP BY Room_Type;

b) SELECT Room_no FROM hotel WHERE Cust_Name LIKE ‘%n%; 

g) Define Domain and Tuple. 

Q 4. a) What is Interface in Java? What purpose does it solve? [1]

b) Differentiate between function overloading and method overriding. [1]

c) Write the purpose of the following statements:

i) int n=Integer.parseInt(“1254”); ii) jButton1.doClick( ); [1]

d) Rewrite the following code using while loop:

int i,j;

for(i=1,j=2;i<=6;i++,j+=2)

System.out.println(i++);

System.out.println(“Finished!!!”); [2]

e) The following code has some error(s). Rewrite the correct code underlining all the corrections made.

int y=6,p;

do

{ y=3.14*y;

p=y%10;

if p=2

System.out.print(“Two”);

while(y>1) [2]

f) What will be the content of jTextField1 and jTextField2 after executing the following code:

String st=”New to Information Technology”;

jTextField1.setText(st.replace(“Technology”,”Practices”);

jTextField2.setText(st.substring(7)); [2]

g) Mr. Madhav works in a construction company. To calculate total wages he has developed the following GUI in NetBeans. 

Please refer to attached file for CBSE Class 12 Informatics Practices Sample Paper 2014 (8).

Tags: 

 


Click to View or Download pdf file
Click for more Informatics Practices Study Material

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Internal Assessments and CBSE Reduced Syllabus

CBSE on 7th July 2020 had announced the ‘Revised Academic Curriculum for classes IX-XII for the session 2020-21’ to mitigate the effect of face to face learning loss due to the closure of schools to contain COVID-19 Pandemic. The rationalization of syllabus up to 30% ...

Cogito and The Question Book A series on Thinking skills by CBSE

The Board has dedicated this academic session 2020-21 for ‘Competency Based Learning’. Skills connected to Critical & Creative thinking, Problem Solving, Collaboration and Communication are core to successful living in the 21st Century. To focus on the importance...

Re verification of Class 10 Board Exams Marks

Modalities and Schedule for Secondary School (Class X) Examinations, 2020 in the subjects whose examinations have been conducted by CBSE for the processes of (I) Verification of Marks (II) Obtaining Photocopy of the Evaluated Answer Book(s) (Ill) Re-evaluation of Marks...

CBSE Reduced Syllabus Class 9 and 10

The prevailing health emergency in the country and at different parts of the world as well as the efforts to contain the spread of Covid-19 pandemic has resulted in loss of class room teaching due to closure of schools. Therefore the CBSE Board has decided to revise...

Board Cancelled Official CBSE Statement

Keeping in view the requests received from various State Governments and the changed circumstances as on date, following has been decided- 1. Examinations for classes X and XII which were scheduled from 1st July to 15th, 2020 stand cancelled. 2. Assessment of the...

×
Studies Today