Question 1

Python allows the programmer to work with text and number files.

Accepted Answer

A) True 
 B)False  False

Question 2

If data is retrieved from a file by a program,this is known by the term __________ file.

Accepted Answer

input

Question 3

A(n)___________ file contains data that has been encoded as text,using a scheme such as ASCII.

Accepted Answer

text

Question 4

If the last line in a file is not terminated with 
,the readline method will return the line without 
.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is the correct way to open a file named users.txt in 'r' mode?

Accepted Answer

A)  infile = open('r', users.txt) 
B)  infile = read('users.txt', 'r') 
C)  infile = open('users.txt', 'r') 
D)  infile = readlines('users.txt', r) 
A)  infile = open('r', users.txt) 
B)  infile = read('users.txt', 'r') 
C)  infile = open('users.txt', 'r') 
D)  infile = readlines('users.txt', r)

Question 6

Which statement can be used to handle some of the runtime errors in a program?

Accepted Answer

A)  an exception statement 
B)  a try statement 
C)  a try/except statement 
D)  an exception handler statement 
A)  an exception statement 
B)  a try statement 
C)  a try/except statement 
D)  an exception handler statement

Question 7

What is the process of retrieving data from a file called?

Accepted Answer

A)  retrieving data 
B)  reading data 
C)  reading input 
D)  getting data 
A)  retrieving data 
B)  reading data 
C)  reading input 
D)  getting data

Question 8

Which of the following is the correct way to open a file named users.txt to write to it?

Accepted Answer

A)  outfile = open('w', users.txt) 
B)  outfile = write('users.txt', 'w') 
C)  outfile = open('users.txt', 'w') 
D)  outfile = open('users.txt') 
A)  outfile = open('w', users.txt) 
B)  outfile = write('users.txt', 'w') 
C)  outfile = open('users.txt', 'w') 
D)  outfile = open('users.txt')

Question 9

It is possible to create a while loop that determines when the end of a file has been reached.

Accepted Answer

A) True 
 B)False

Question 10

What will be the output after the following code is executed and the user enters 75 and -5 at the first two prompts?

Accepted Answer

A)  ERROR: cannot have 0 items 
B)  ERROR: cannot have 0 items
ERROR: number of items can't be negative 
C)  ERROR: number of items can't be negative 
D)  Nothing; there is no print statement to display average. The ValueError will not catch the error. 
A)  ERROR: cannot have 0 items 
B)  ERROR: cannot have 0 items
ERROR: number of items can't be negative 
C)  ERROR: number of items can't be negative 
D)  Nothing; there is no print statement to display average. The ValueError will not catch the error.

Question 11

A filename __________ is a short sequence of characters that appear at the end of a filename,preceded by a period.

Accepted Answer

The answer of A filename __________ is a short sequence...

Question 12

A(n)__________ gives information about the line number(s)that caused an exception.

Accepted Answer

The answer of A(n)__________ gives information about the line number(s)that...

Question 13

Given that the customer file references a file object,and the file was opened using the 'w' mode specifier,how would you write the string 'Mary Smith' to the file?

Accepted Answer

A)  customer file.write('Mary Smith') 
B)  customer.write('w', 'Mary Smith') 
C)  customer.input('Mary Smith') 
D)  customer.write('Mary Smith') 
A)  customer file.write('Mary Smith') 
B)  customer.write('w', 'Mary Smith') 
C)  customer.input('Mary Smith') 
D)  customer.write('Mary Smith')

Question 14

When a piece of data is read from a file,it is copied from the file into the program.

Accepted Answer

A) True 
 B)False

Question 15

Which mode specifier will erase the contents of a file if it already exists and create the file if it does not already exist?

Accepted Answer

A)  'w' 
B)  'r' 
C)  'a' 
D)  'e' 
A)  'w' 
B)  'r' 
C)  'a' 
D)  'e'

Question 16

In Python,there is nothing that can be done if the program tries to access a file to read that does not exist.

Accepted Answer

A) True 
 B)False

Question 17

Which method could be used to strip specific characters from the end of a string?

Accepted Answer

A)  estrip 
B)  rstrip 
C)  strip 
D)  remove 
A)  estrip 
B)  rstrip 
C)  strip 
D)  remove

Question 18

A(n)___________ block includes one or more statements that can potentially raise an exception.

Accepted Answer

The answer of A(n)___________ block includes one or more statements...

Question 19

Which step creates a connection between a file and a program?

Accepted Answer

A)  open the file 
B)  read the file 
C)  process the file 
D)  close the file 
A)  open the file 
B)  read the file 
C)  process the file 
D)  close the file

Question 20

Which type of file access jumps directly to a piece of data in the file without having to read all the data that comes before it?

Accepted Answer

A)  sequential 
B)  random 
C)  numbered 
D)  text 
A)  sequential 
B)  random 
C)  numbered 
D)  text

Python allows the programmer to work with text and number files.

If data is retrieved from a file by a program,this is known by the term __________ file.

A(n)___________ file contains data that has been encoded as text,using a scheme such as ASCII.

If the last line in a file is not terminated with \n,the readline method will return the line without \n.

Which of the following is the correct way to open a file named users.txt in 'r' mode?

Which statement can be used to handle some of the runtime errors in a program?

What is the process of retrieving data from a file called?

Which of the following is the correct way to open a file named users.txt to write to it?

It is possible to create a while loop that determines when the end of a file has been reached.

What will be the output after the following code is executed and the user enters 75 and -5 at the first two prompts?

A filename __________ is a short sequence of characters that appear at the end of a filename,preceded by a period.

A(n)__________ gives information about the line number(s)that caused an exception.

Given that the customer file references a file object,and the file was opened using the 'w' mode specifier,how would you write the string 'Mary Smith' to the file?

When a piece of data is read from a file,it is copied from the file into the program.

Which mode specifier will erase the contents of a file if it already exists and create the file if it does not already exist?

In Python,there is nothing that can be done if the program tries to access a file to read that does not exist.

Which method could be used to strip specific characters from the end of a string?

A(n)___________ block includes one or more statements that can potentially raise an exception.

Which step creates a connection between a file and a program?

Which type of file access jumps directly to a piece of data in the file without having to read all the data that comes before it?

Introduction to Computers and Programming

Input, Processing, and Output

Decision Structures and Boolean Logic

Repetition Structures

Functions

Lists and Tuples

More About Strings

Dictionaries and Sets

Classes and Object-Oriented Programming

Inheritance

Recursion

Gui Programming

Filters

Exam 6: Files and Exceptions

Python allows the programmer to work with text and number files.

If data is retrieved from a file by a program,this is known by the term __________ file.

A(n)___________ file contains data that has been encoded as text,using a scheme such as ASCII.

If the last line in a file is not terminated with \n,the readline method will return the line without \n.

Which of the following is the correct way to open a file named users.txt in 'r' mode?

Which statement can be used to handle some of the runtime errors in a program?

What is the process of retrieving data from a file called?

Which of the following is the correct way to open a file named users.txt to write to it?

It is possible to create a while loop that determines when the end of a file has been reached.

What will be the output after the following code is executed and the user enters 75 and -5 at the first two prompts?

A filename __________ is a short sequence of characters that appear at the end of a filename,preceded by a period.

A(n)__________ gives information about the line number(s)that caused an exception.

Given that the customer file references a file object,and the file was opened using the 'w' mode specifier,how would you write the string 'Mary Smith' to the file?

When a piece of data is read from a file,it is copied from the file into the program.

Which mode specifier will erase the contents of a file if it already exists and create the file if it does not already exist?

In Python,there is nothing that can be done if the program tries to access a file to read that does not exist.

Which method could be used to strip specific characters from the end of a string?

A(n)___________ block includes one or more statements that can potentially raise an exception.

Which step creates a connection between a file and a program?

Which type of file access jumps directly to a piece of data in the file without having to read all the data that comes before it?

Introduction to Computers and Programming

Input, Processing, and Output

Decision Structures and Boolean Logic

Repetition Structures

Functions

Lists and Tuples

More About Strings

Dictionaries and Sets

Classes and Object-Oriented Programming

Inheritance

Recursion

Gui Programming

Filters