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6. Which of the following is not a free and open-source software?
a. Linux b. MS Windows
c. Python d. Audacity
7. ___________ is the visual symbol, word, name, design, slogan, label, etc., that distinguishes one brand from other
brands.
a. Trademark b. Copyright
c. Patent d. Trade Secret
8. Consider a table employee given below.
ID Ename SALARY DEPT
Q101 Rahul 54000 10
Q103 Sachin 67000 20
Q105 Virat 75000 20
Q109 Rohit NULL 30
The degree and cardinality of employee are:
a. 4, 4 b. 5, 4
c. 4, 5 d. 4, 3
9. What will be the output produced on the exceution of the following SQL statement?
SELECT MONTHNAME("2016-10-29");
a. 29 b. 10
c. October d. Oct
10. To skip NaN values in a calculation involving a Pandas DataFrame, you can specify ___________ attribute.
a. NaN b. NA
c. skipna d. all of these
11. Which SQL clause is used to match the character data based on certain pattern?
a. LIKE b. IN
c. BETWEEN d. RANGE
12. In Pandas DataFrame, ___________ function can be used to drop missing values.
a. fillna( ) b. isnull()
c. dropna( ) d. delna()
13. Gaining unauthorised access to a network or computer or digital files with malicious intentions, is called
___________ .
a. Cracking b. Hacking
c. Banging d. Phishing
14. In SQL, the function equivalent to LCASE() is:
a. LOWERCASE () b. CAPITALCASE()
c. LOWER() d. TITLE()
15. Which of these components is internal to a computer and is required to connect the computer to a network?
a. Wireless Access Point b. Network Interface card
c. Switch d. Hub
Practice Paper 2 357

