Class 12 Informatics Practices Online Test Set-A

1.Microsoft Office, Adobe Photoshop are

2. Which of the following method(s) is/are feasible for e-waste

3. Which of the following is not a good way to handle Cyber bullying?

4.I give owner authority to decide how much information he/she can share with user.
I encourage creators to invent new ideas, designs, and software.
I give owner right to get financial benefits against their creation/inventions.
Who am I?

5. Protecting personal and sensitive information from unwanted attack or disclosure is called

6. The difference between copyright and patent is

7. GPL stands for General ___________ License

8. Which of the following you think comes under cyber-crime?

9. Jignesh was assigned a project to find information about ‘Emerging Technologies”. To do this he was asked to use Google Chrome and Docs. What technologies being used by Sunil?

10. Demerit of Social networking site is

11. Consider the following Series M and N:
M = pd.Series([3,8,1],index=[‘a’,’b’,’c’])
N = pd.Series([5,4,2], index = [‘b’,’c’,’d’])
Write the statement to multiply both Series M and N

12. What code should come in blank space to get the output displayed for given series:
S= pd.Series([78,90,11,23,456,67])
________________
Print(S)

Output:
4 456
1 90
0 78
5 67
3 23
2 11

13. What will be output of the following program?
import pandas as pd
a = 4
S = pd.Series(a,index[3,’a’,8])
print(S)

14. Display the output for given code.
import pandas as pd
S1 = pd.Series([3,8,2])
S2 = pd.Series([4,5],index = [2,4])
print(S1 + S2)

15. Ratnakar has created following Series ‘exp’
A 23
C 32
D 12
E 65
Now he wants to delete value against ‘C’. Help him to select correct code for it.

16. To display last 2 element of Series ‘S’ of shape 5, we can write

17. Consider following series S and display the output of S[1:3]
1 40
2 50
3 60
4 35
5 52

19. Command used to represent all elements of ‘S’ as Numpy Array?

20. Which of the following is correct?

21. Which of the following is suitable code to create empty dataframe?

22. For given dataframe, which of the following is correct statement to rename rows of dataframe?
Sports player
r1 kabaddi 7.0
r2 khokho 12.0
r3 volly ball NaN

23. consider the following dataframe df :
import pandas as pd
d = {‘eno’:[201,202,203],’ename’:[‘Sanjay’,’Sudesh’,’raman’],’sal’:[2300,3200,1390]}
df = pd.DataFrame(d, index = [100,200,300])

write appropriate code to display
eno 202
ename sudesh
sal 3200

24. To display the highest salary of employee of dataframe (Qno23), which of the following statement is correct?

25. If shape of passed values in index sequence of dataframe and length of dictionary’s values are not same, than python gives

26. For given dataframe df
coachid name rank
A 1 Jack 12
B 2 Kim 3
C 3 Rajan NaN
D 4 Juber 11
E 5 Hanuma NaN

What will be output of df.size

27. We can add a new row in a dataframe using

28. Which is True

29. Display the output for given code:
Import pandas as pd
df1 = pd.DataFrame({‘a’:[10,20],’b’:[30,40]})
df2 = pd.DataFrame({‘a’:[50],’c’:[60]})
df1 = df1.append(df2)
print(df1)

30. What the following statement will display?
df.iloc[1 : 4, : 2]

31. Python package used for 2D graphics

32. Using pyplot ________ can be used to display information as series of data points

33. Write code to draw following chart with appropriate labels

34. Which of the following chart element is used to identify data series by its color patterns?

35. Which of the following is correct syntax for displaying title on chart?