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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2019-20 : Informatics Practices Old

Posted: 14 Oct 2019 12:36 AM PDT

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2019-20 : Informatics Practices Old

Sample Question paper
Informatics Practices Old-(265)
Class-XII (2019-20)

Time allowed: 3 hours
Maximum Marks: 70

General Instructions:

All questions are compulsory, however question number 2, 4 and 6 have internal choices.

Section A

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CBSE (Class XII) Previous Year Papers Printed Books

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Courtesy: CBSE

CBSE Board Class-XII

Informatics Practice

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2019-20 : Informatics Practices New

Posted: 14 Oct 2019 12:17 AM PDT

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2019-20 : Informatics Practices New

Sample Question paper
Informatics Practices New-(065)
Class-XII (2019-20)

Time allowed: 3 hours
Maximum Marks: 70

General Instructions:

 All questions are compulsory
 Question Paper is divided into 4 sections A,B,C and D.
 Section A comprises of questions(1 and 2)
(i) Question 1 comprises Data Handling-2(DH-2)(Series,Numpy)
(ii) Question 2 comprises of question from Data Handling -2(DH-2)(Data Frames and its operations)
 Section B comprises of questions from Basic Software Engineering.
 Section C comprises of questions from Data Management-2(DM-2)
 Section C comprises of questions from Society, Law and Ethics-2(SLE-2)

Section A

Answer the following questions :
(a) Find the output of following program.
import numpy as np
d=np.array([10,20,30,40,50,60,70])
print(d[-4:])

(b) Fill in the blank with appropriate numpy method to calculate and print the variance of an array.
import numpy as np
data=np.array([1,2,3,4,5,6])
print(np.___(data,ddof=0)

(c) Mr. Sanjay wants to plot a bar graph for the given set of values of subject on x-axis and number of students who opted for that subject on y-axis.
Complete the code to perform the following :
(i) To plot the bar graph in statement 1
(ii) To display the graph in statement 2
import matplotlib.pyplot as plt
x=['Hindi', 'English', 'Science', 'SST']
y=[10,20,30,40]
_____________________ Statement 1
_____________________ Statement 2

Mr. Harry wants to draw a line chart using a list of elements named LIST.
Complete the code to perform the following operations:
(i) To plot a line chart using the given LIST,
(ii) To give a y-axis label to the line chart named “Sample
Numbers”.
import matplotlib.pyplot as PLINE
LIST=[10,20,30,40,50,60]
_____________________ Statement 1
_____________________ Statement 2
PLINE.show()

(d) Write the output of the following code :
import numpy as np
array1=np.array([10,12,14,16,18,20,22])
array2=np.array([10,12,15,16,12,20,12])
a=(np.where(array1==array2))
print(array1[a])

Click Here To Download Full Sample Paper

Click Here To Download Full Marking Scheme

CBSE (Class XII) Previous Year Papers Printed Books

<<Go Back To Main Page

Courtesy: CBSE

CBSE Board Class-XII

Informatics Practice

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2019-20 : Home Science

Posted: 14 Oct 2019 12:06 AM PDT

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2019-20 : Home Science

Sample Question paper
Home Science-(064)
Class-XII (2019-20)

Time allowed: 3 hours
Maximum Marks: 70

General Instructions:

1. All questions are compulsory.
2. There are total 33 questions.
3. Questions no. 1- 18, Section A, are objective type questions and are of 1 mark each.
4. Questions no. 19 – 23, Section B, are of 2 marks each, to be answered in 10-20 words.
5. Questions no. 24 and 25, Section C are of 3 marks each, to be answered in 20-30 words.
6. Questions no. 26 -29 are of 4 marks each, to be answered in 40 words.
7. Questions no. 30 -33 are of 5 marks each, to be answered in 50-60 words.
8. Internal choices are given in sections B, C, D and E.
9. Support your answer with suitable examples wherever required.

SECTION A

Fill in the blanks:
1. Two possible reasons for extreme depression in a sixteen year old boy can be _________ and __________.
OR
------------------- is the eating disorder in adolescents which leads to skeletal appearance due to excessive weight loss.
2. Benefits of savings are to------------------------ and ------------------------.
3. Two chemicals used in water purification are __________ and _________.
4. Full form of RDA is ____________________________.
5. Expansion of DWCRA is ______________________.
OR
Expansion of MGNREGA is ______________________.
6. Two advantages of using reverse osmosis system to make water safe are ___________________ and ___________.
7. Liquidity means------------------------------------------------------------.
8. An additional amount of protein required during pregnancy is _______.
9. The term ‘Growth spurt’ means ---------------------------------
10. Binge eating and vomiting out the food are the symptoms of

Home Science