Quiz_2_Skill_Lab_Python_Programming

Which of the following statements are true?

• When you open a file for reading, if the file does not exist, an error occurs

• When you open a file for writing, if the file does not exist, a new file is created

• When you open a file for writing, if the file does not exist, a new file is created

• ALL

To open a file c:\scores.txt for reading, we use

• infile = open(“c:\\scores.txt”, “r”)

• infile = open(“c:\\scores.txt”)

• Both

To read two characters from a file object infile, we use ____________

• infile.read()

• infile.readline()

• infile.read(2)

• infile.readlines()

What will be the output-

f=open('abc.txt','a')

text="xyz"

f.write(text)

f.close()

• Writing into the file without erasing old content

• Writing into the file by erasing old content

• reading from the file without erasing old content

• reading from the file by erasing old content

Where files are store permanently?

• RAM

• Hard Disk

• Cache memory

• None of these

What is a class (in python)?

• A user-defined prototype for an object that defines a set of attributes that characterize any object of this. The attributes are data members and methods, accessed via dot notation.

• A special kind of function that is defined in a class definition.

• The assignment of more than one behavior to a particular function. The operation performed varies by the types of objects or arguments involved.

• the system of ordering a society in which people are divided into sets based on perceived social or economic status.

What is an object in python?

• A unique instance of a data structure that's defined by its class. An object comprises both data members (class variables and instance variables) and methods.

• A special kind of function that is defined in a class definition.

• The assignment of more than one function to a particular operator.

• An individual object of a certain class. An object obj that belongs to a class Circle, for example, is an instance of the class Circle.

The process by which objects of one class acquire the properties of objects of another class is known as

• Polymorphism

• Inheritance

• Data Hiding

• None of the above.

Which of the following statements is incorrect?

• Class is an object factory

• Class is a composite type.

• Class is a user defined type.

• Class is an instance of an object.

What is a method in python?

• a way of doing something

• a special kind of function that is defined in a class definition

• the creation of an instance of a class

• orderliness of thought or behavior; systematic planning or action