# CBSE Class 12 Information Practices Boards 2021 Sample Paper Solved

Read and download PDF of CBSE Class 12 Information Practices Boards 2021 Sample Paper Solved designed as per the latest curriculum and examination pattern for Class 12 issued by CBSE, NCERT and KVS. The latest Class 12 Informatics Practices Sample Papers have been provided with solutions so that the students can solve these practice papers and then compare their answers. This will help them to identify mistakes and improvement areas in Informatics Practices Standard 12 which they need to study more to get better marks in Grade 12 exams. After solving these guess papers also refer to solved Class 12 Informatics Practices Question Papers available on our website to build strong understanding of the subject

## Sample Paper for Class 12 Informatics Practices 2021 Pdf

Students can refer to the below Class 12 Informatics Practices Sample Paper designed to help students understand the pattern of questions that will be asked in Grade 12 exams. Please download CBSE Class 12 Information Practices Boards 2021 Sample Paper Solved

### Informatics Practices Class 12 Sample Paper 2021

Part - A
Section - I
Attempt any 15 questions from questions 1 to 21
1 State whether True or False :
i. A copyright is automatically granted to authors or creators of content. _________

ii. In FOSS source code is usually hidden from the users. _______________

2 Fill in the blanks :
The command used to give a heading to a graph is _________
a. plt.show()
b. plt.plot()
c. plt.xlabel()
d. plt.title()

3. Write the output of the following SQL command.
select round(49.88);
a. 49.88
b. 49.8
c. 49.0
d. 50

4 Given a Pandas series called Sequences, the command which will display the first 4 rows is __________________.

5 Given the following Series S1 and S2:

Using Python Matplotlib _________ can be used to count how many values fall into each interval
a. line plot
b. bar graph
c. histogram

7 To prevent unauthorized access to and / or from the network, a system known as ____________, can be implemented by hardware and / or software.

8 In a DataFrame, Axis= 1 represents the_____________ elements.

9 Which of the following is not a network topology :
Star, Mesh , Tree, Bug , Bus