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ORDER BY `video_id` desc 12th Standard English Medium Computer Science Reduced syllabus Public Exam Model Question Paper With Answer Key - 2021 12th Standard
Computer Science Part I Answer all the questions. Choose the most suitable answer from the given four alternatives and write the option code with the corresponding answer. Which of the following is a unit of code that is often defined within a greater code structure? Subroutines Function Files Modules The functions which will give exact result when same arguments are passed are called Impure functions Partial Functions Dynamic Functions Pure functions The data type whose representation is known are called Built in datatype Derived datatype Concrete datatype Abstract datatype The data type whose representation is unknown are called Built in datatype Derived datatype Concrete datatype Abstract datatype The process of binding a variable name with an object is called Scope Mapping late binding early binding Which of the following is used in programming languages to map the variable and object? :: := = == Which members are accessible from outside the class? Public members Protected members Secured members Private members Which of the following is not a token? Interpreter Identifiers Keyword Operators Which statement is generally used as a placeholder? continue break pass goto While defining a function which of the following symbol is used. ; (semicolon) . (dot) : (colon) $ (dollar) The subscript of a string may be: Positive Negative Both (a) and (b) Either (a) or (b) Functions defined inside a class: Functions Module Methods section What is the output of the following program? import csv chennai,mylapore mumbai,andheri chennai,mumba chennai,mylapore,mumbai,andheri The module which allows you to interface with the Windows operating system is OS module sys module csv module getopt module The small sections of code that are used to perform a particular task is called Subroutines Files Pseudo code Modules Part II Answer any six questions. Question no. 21 is compulsory. How will you retain duplicate rows while displaying the table? How will search NULL values in a field? Give example. What is the rule to apply DROP TABLE command? Write the syntax of GROUP BY and HAVING clause. Differentiate text mode and binary mode. What is the use of close ( ) method? What is called modification? Write is purpose of using skipinitialspace parameter. Part III Answer any six questions. Question no. 26 is compulsory. Why strlen is called pure function? What is the side effect of impure function. Give example. What are the different ways to access the elements of a list. Give example. Identify Which of the following are List, Tuple and class ? Identify the scope of the variables in the following pseudo code and write its output What are string literals? Explain. Write a Python program to display the given pattern What will be the output of the following code? Write a python code to display the following plot. Read the following code. What does the following represents. Part IV Answer all the Questions. Explain with example Pure and impure functions. How will you access the multi-item. Explain with example. Write any Five Characteristics of Modules. Explain input() and print() functions with examples. Explain the following built-in functions. What is nested tuple? Explain with an example. Construct the following SQL statements in the student table- Explain each word of the following command. Explain the types of scopes for variable or LEGB rule with example. Explain the concept access control. Answers Function Pure functions Concrete datatype Abstract datatype Mapping = Public members Interpreter pass : (colon) Either (a) or (b) Methods mumbai,andheri OS module Subroutines
12th Standard English Medium Computer Science Reduced syllabus Public Exam Model Question Paper With Answer Key - 2021
Question Bank Software Feb-27 , 2021
12th Standard English Medium Computer Science Reduced syllabus Public Exam Model Question Paper With Answer Key - 2021
Reg.No. :
d=csv.reader(open('c:\PYPRG\ch13\city.csv'))
next(d)
for row in d:
print(row)
if the file called “city.csv” contain the following details
chennai,mylapore
mumbai,andheri
(a) arr [1, 2, 34]
(b) arr (1, 2, 34)
(c) student [rno, name, mark]
(d) day= (‘sun’, ‘mon’, ‘tue’, ‘wed’)
(e) x= [2, 5, 6.5, [5, 6], 8.2]
(f) employee [eno, ename, esal, eaddress]
color:= 'Red'
mycolor( ):
b:='Blue'
myfavcolor( ):
g:='Green'
printcolor, b, g
myfavcolor( )
printcolor, b
mycolor( )
print color
C O M P U T E R
C O M P U T E
C O M P U T
C O M P U
C O M P
C O M
C O
C
list = [2**x for x in range(5)]
print (list)
(i) Labels
(ii) Usage
(iii) X ticks
(iv) Range
(v) Show
(a) id ()
(b) chr ()
(c) round ()
(d) type ()
(e) pow ()
(i) SELECT statement using GROUP BY clause.
(ii) SELECT statement using ORDER BY clause.
Python
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