Sample Question Answers Class 12 CBSE

 

Question No.	Part-A	Marks allocated
Section-I Select the most appropriate option out of the options given for each question. Attempt any 15 questions from question no 1 to 21.
1.	Find the valid identifier from the following a) My-Name b) True c) 2ndName d) S_name	1
2.	Given the lists L=[1,3,6,82,5,7,11,92] , What will be the output of print(L[2:5])	1
3.	How would you write XY in Python as an expression.	1
4.	Identify the valid logical operator in Python from the following. a) ?                 b) <                                        c) **                    d) and	1
5.	Suppose a tuple Tup is declared as Tup = (12, 15, 63, 80), which of the following is incorrect? a) print(Tup[1]) b) Tup[2] = 90 c)  print(min(Tup)) d)  print(len(Tup))	1
6.	Write a statement in Python to declare a dictionary whose keys are 1,2,3 and values are Mango and Banana respectively.	A1pple,
7.	A tuple is declared as T = (2,5,6,9,8) What will be the value of sum(T)?	1

8.	Name the built-in mathematical function / method that is used to return square root of a number.	1
9.	Protocol is used to send email	1
10.	Your friend Seema complaints that somebody has created a fake profile on Twitter and defaming her character with abusive comments and pictures. Identify the type of cybercrime for these situations.	1
11.	In SQL, name the command/clause that is used to display the rows in descending order of a column.	1
12.	In SQL, what is the error in following query: SELECT NAME, SAL, DESIGNATION WHERE DISCOUNT=NULL;	1
13.	Write any two aggregate functions used in SQL.	1
14	Which of the following is a DML command? a) SELECT       b) Update      c) INSERT            d) All	1
15	Name the transmission media best suitable for connecting to desert areas.	1
16	Identify the valid declaration of P: P= [‘Jan’, 31, ‘Feb’, 28] a. dictionary              b. string                                    c.tuple               d. list	1
17	If the following code is executed, what will be the output of the following code? str="Encyclopedia" print(str[3 : 9])	1
18	In SQL, write the query to display the list of databases.	1
19	Write the expanded form of VPN.	1
20	Which of the following will suppress the entry of duplicate value in a column? a) Unique b) Distinct c) Primary Key d) NOT NULL	1
21	Rearrange the following terms in increasing order of speedy medium of data transfer. Telephone line, Fiber Optics, Coaxial Cable, Twisted Paired Cable	1