Python Test

Question 2: The value of __name__ attribute of a module may be equal to main if _____.

• it is executed from interpreter
• it is imported by another script
• it is the first module in a package
• it is inside a function

Question 3: What is true about __init__() method?

• It is a constructor
• It is a magic method
• It calls __new__() method
• All of the above

Question 4: In order to make an instance variable private should be

• prefixed by single under score
• prefixed by double under score
• having single underscore before and after the name
• having double underscore before and after the name

Question 5: The commit() method should be executed to ____.

• finalize transactions
• close database
• close file object
• refresh data after execution of query

Question 6: Python DB-API is _______.

• a module
• the specification for database connectivity modules
• used to access SQLite database
• used to access web API of the database

Question 7: A _____ cannot be a part of Python module

• function
• class
• Keyword
• module

Question 8: What is self?

• It is a keyword.
• It is a class attribute.
• It is reference to object which calls an instance method.
• It is a built-in function in python

Question 9: Variable used inside a function become its ________.

• Local variable
• Global variable
• Reference variable
• None of these

Question 10: What kind of relationship exists between inherited class and base class?

• IS A
• HAS A
• Both
• None

Question 11: What is the difference between the range() and randrange() functions?

• range() generates a sequence of numbers,
• randrange() selects one number from the range randomly
• Both A and B are true
• None of the above are true

Question 12: Which of the following is TRUE about Python function?

• It is a first order object.
• It can be passed to another function as argument.
• Function can return another function.
• All statements above are true.

Question 13: Which of the following is not a built-in exception in Python?

• KeywordError
• ImportError
• TypeError
• ValueError

Question 14: In Python 'global' is a _______.

• built-in function
• built-in module
• keyword
• class

Question 15: Which of the following string is not a valid aces mode for opening a file in simultaneous read/write mode?

• r+
• w+
• wb+
• rw

Question 16: In Python 'else' clause can be used along with which of the following keywords:

• try
• while
• if
• all of the above

Question 17: REPL stands for:

• RETRIEVE, EVALUATE, PRINT, LOOP
• READ, EVALUATE, PRINT, LOOP
• READ, EDIT, PRINT, LOOP
• None of the above

Question 18: Which of the following statements is not true?

• Each block must have same indent level.
• Statements in a block must have same indent level.
• Indent length may vary for each block
• None of the above

Question 19: Which of the following Python objects is not iterable?

• String
• Dictionary
• Number
• Tuple

Question 20: What is not true about bind() method in TKinter GUI Widget library?

• It is an event handler function
• It associates event handler with GUI widget
• It recognizes GUI event type and invokes corresponding callback function
• None of the above statements are true