Class 12 Informatics Practices - MCQs - Set 1
Q1. To get the number of dimensions of a Series object, which attribute is used to display the value?
(a) index
(b) size
(c) itemsize
(d) ndim
Q2. To display last five rows of a series object ‘S’, you may write:
(a) S.Head()
(b) S.Tail(5)
(c) S.Head(5)
(d) S.tail()
Q3. To delete a column from a Dataframe, you may use which of the statement?
(a) remove
(b) del
(c) drop
(d) cancel
Q4. Which of the following can be used to specify the data while creating a DataFrame?
(a) Series
(b) List of Dictionaries
(c) Structured ndarray
(d) All of these
Q5. To add two dataframes values which function is used?
(a) plus
(b) rplus
(c) add
(d) xsum
Q6. Which function from PyPlot is used to create a line chart?
(a) plot()
(b) line()
(c) chart()
(d) plotline()
Q7. __________is the trail of data we leave behind when we visit any website (or use
any online application or portal) to fill-in data or perform any transaction.
(a) Offline phishing
(b) Offline footprint
(c) Digital footprint
(d) Digital phishing
Q8. To suppress the first row as header, whichof the following arguement is to be given in read_csv()?
(a) noheader = True
(b) header = None
(c) skipheader = True
(d) heder = Null
Q9. Which amongst the following is not an example of a browser?
(a) Chrome
(b) Firefox
(c) Avast
(d) Edge
Q10. In SQL, what does DML stand for?
(a) Different Model Level
(b) Data Model Language
(c) Data Mode Latency
(d) Data Manipulation language
Q11. In SQL, which function is used to display current date and time?
(a) Now()
(d) Date()
(b) Time()
(c) Current()
Q12. What is the output of the following SQL query
SELECT LENGTH("EDUVICTORS");
(a) 9
(b) 10
(c) 11
(d) 1
Q13. Which Legal term describes the rights of a creator of original creative or artistic work?
(a) Copyright
(b) Copyleft
(c) GPL
(d) FOSS
Q14. Which SQL statement do we use to find out the total number of records present in the table ORDERS?
(a) SELECT * FROM ORDERS;
(b) SELECT COUNT (*) FROM ORDERS;
(c) SELECT FIND (*) FROM ORDERS;
(d) SELECT SUM () FROM ORDERS;
Q15. Out of the following, which function cannot be used for customization of charts in Python?
(a) xlabel()
(b) title()
(c) colour()
(d) xticks()
Q16. Which function is used to save the graph in MatPlotlib>
(a) Savefig()
(b) Savefigure()
(c) Savegraph()
(d) Savechart()
Q17. ____________is the practice of taking someone else's work or ideas and passing them off as one's own:
(a) Plagiarism
(b) Copyright
(c) Patent
(d) All of the above
Answers:
1. (d) ndim
2. (d) S.tail()
3. (b) del
4. (d) All of these
5. (c) add
6. (a) plot()
7. (c) Digital footprint
8. (b) header = None
9. (c) Avast
10. (d) Data Manipulation language
11. (a) Now()
12. (b) 10
13. (a) Copyright
14. (b) SELECT COUNT (*) FROM ORDERS;
15. (c) colour()
16. (a) Savefig()
17. (a) Plagiarism
Python Snippets (Set-1)
Python Pandas (Q & A) Part-1
Python Pandas (Q & A) Part-2
Data Handling Using Pandas-1 (MCQs)
Plotting Data Using Matplotlib (Q & A Part-1)
Scatter Plot Using Matplotlib
Class 12 - Informatics Syllabus (2017-18)
Informatics Practices Sample Question Paper with Marking Scheme (2016)
Informatics Practices - Solved Sample Question Paper with Marking Scheme(2017-18)
Informatics Practices - Sample Question Paper + Marking Scheme (2018-19)
Informatics Practices Sample Question Paper with Marking Scheme (2020-21)
Informatics Practices Sample Question Paper (Set-2) 2020-21
Querying and SQL Functions (Worksheet)
Important Abbreviations To Memorise
Networking (Q & A)
Networking - Data Transmission Media (Q & A)
Database Concepts (Important Terms)
IT Applications (Q & A)
SQL Commands (Summary)
Worksheet on Database Management Systems
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