Question 1

A data structure is a compound unit that consists of several smaller pieces of data.

Accepted Answer

A) True 
 B)False  True

Question 2

In the binary number system, each digit or bit has a positional value that is a power of what?

Accepted Answer

A)  1 
B)  2 
C)  8 
D)  16 
A)  1 
B)  2 
C)  8 
D)  16 B

Question 3

What file access method can be used to read a single line of input and return the line as a string, including the newline character?

Accepted Answer

A)  getline 
B)  readline 
C)  fetch 
D)  read 
A)  getline 
B)  readline 
C)  fetch 
D)  read B

Question 4

Many applications now use data mangling to protect information transmitted on networks.

Accepted Answer

A) True 
 B)False

Question 5

What does a block cipher utilize in order to change plaintext characters into two or more encrypted characters?

Accepted Answer

A)  A mathematical structure known as an invertible matrix. 
B)  A random noise sampling from the computer's hardware. 
C)  A pseudorandom number generator defined by the encrypting language. 
D)  A hardware encryption chip designed to perform obfuscation. 
A)  A mathematical structure known as an invertible matrix. 
B)  A random noise sampling from the computer's hardware. 
C)  A pseudorandom number generator defined by the encrypting language. 
D)  A hardware encryption chip designed to perform obfuscation.

Question 6

The absolute value of a digit is determined by raising the base of the system to the power specified by the position (baseposition).

Accepted Answer

A) True 
 B)False

Question 7

The two digits in the base two number system are 0 and 1.

Accepted Answer

A) True 
 B)False

Question 8

Your script is parsing filenames and is creating a count of how many files per file extension type exist within a directory. What slice could you use to extract the file extension substring, assuming the extensions are three letters only?

Accepted Answer

A)  filename[-3:] 
B)  filename[-3] 
C)  filename[:-3] 
D)  filename[$-3] 
A)  filename[-3:] 
B)  filename[-3] 
C)  filename[:-3] 
D)  filename[$-3]

Question 9

Data can be output to a text file using a(n) output object.

Accepted Answer

A) True 
 B)False

Question 10

The string method isalphabetic returns True if the string contains only letters or False otherwise.

Accepted Answer

A) True 
 B)False

Question 11

A module behaves like a function, but has a slightly different syntax.

Accepted Answer

A) True 
 B)False

Question 12

The remove file system function is included in the os.path module.

Accepted Answer

A) True 
 B)False

Question 13

The encryption method that replaces a character in a text with another character some given distance away in the alphabet from the original is known as what type of cipher?

Accepted Answer

A)  Alpha cipher 
B)  Caesar cipher 
C)  Jumble cipher 
D)  Alternate cipher 
A)  Alpha cipher 
B)  Caesar cipher 
C)  Jumble cipher 
D)  Alternate cipher

Question 14

What specific Python module can you use to determine the file size in bytes of a given file?

Accepted Answer

A)  os.stat 
B)  io.file 
C)  os.path 
D)  file.ops 
A)  os.stat 
B)  io.file 
C)  os.path 
D)  file.ops

Question 15

What does a mode string of 'r' indicate when opening a file in Python?

Accepted Answer

A)  The file will be opened for random access. 
B)  The file will be opened for read access. 
C)  The file will be opened for write access. 
D)  The file will be opened in binary mode. 
A)  The file will be opened for random access. 
B)  The file will be opened for read access. 
C)  The file will be opened for write access. 
D)  The file will be opened in binary mode.

Question 16

When you launch Python, what file system path does it start with?

Accepted Answer

A)  The root directory of the file system. 
B)  The current working directory. 
C)  The same folder as the Python executable file. 
D)  The user's home folder. 
A)  The root directory of the file system. 
B)  The current working directory. 
C)  The same folder as the Python executable file. 
D)  The user's home folder.

Question 17

You are running a Python script that is supposed to write data to an open file, but discover that the file contents are being erased each time the script runs. What is most likely the issue?

Accepted Answer

A)  The file was opened using a mode string other than 'a'. 
B)  The file is truncated by default with the write() method. 
C)  The file is erased when the script uses the close() method. 
D)  The file must be opened using a mode string of 'rw'. 
A)  The file was opened using a mode string other than 'a'. 
B)  The file is truncated by default with the write() method. 
C)  The file is erased when the script uses the close() method. 
D)  The file must be opened using a mode string of 'rw'.

Question 18

A method is always called with a given data value called an object, which is placed before the method name in the call.

Accepted Answer

A) True 
 B)False

Question 19

The decimal number system is also called the base ten number system.

Accepted Answer

A) True 
 B)False

Question 20

The decimal number system, which utilizes the numbers 0-9, is also known as what number system?

Accepted Answer

A)  The base-9 numbering system. 
B)  The base-10 numbering system. 
C)  The Octal numbering system. 
D)  The hexadecimal numbering system. 
A)  The base-9 numbering system. 
B)  The base-10 numbering system. 
C)  The Octal numbering system. 
D)  The hexadecimal numbering system.

A data structure is a compound unit that consists of several smaller pieces of data.

In the binary number system, each digit or bit has a positional value that is a power of what?

What file access method can be used to read a single line of input and return the line as a string, including the newline character?

Many applications now use data mangling to protect information transmitted on networks.

What does a block cipher utilize in order to change plaintext characters into two or more encrypted characters?

The absolute value of a digit is determined by raising the base of the system to the power specified by the position (baseposition).

The two digits in the base two number system are 0 and 1.

Your script is parsing filenames and is creating a count of how many files per file extension type exist within a directory. What slice could you use to extract the file extension substring, assuming the extensions are three letters only?

Data can be output to a text file using a(n) output object.

The string method isalphabetic returns True if the string contains only letters or False otherwise.

A module behaves like a function, but has a slightly different syntax.

The remove file system function is included in the os.path module.

The encryption method that replaces a character in a text with another character some given distance away in the alphabet from the original is known as what type of cipher?

What specific Python module can you use to determine the file size in bytes of a given file?

What does a mode string of 'r' indicate when opening a file in Python?

When you launch Python, what file system path does it start with?

You are running a Python script that is supposed to write data to an open file, but discover that the file contents are being erased each time the script runs. What is most likely the issue?

A method is always called with a given data value called an object, which is placed before the method name in the call.

The decimal number system is also called the base ten number system.

The decimal number system, which utilizes the numbers 0-9, is also known as what number system?

Introduction

Software Development Data Types and Expressions

Loops and Selection Statements

Lists and Dictionaries

Design With Functions

Simple Graphics and Image Processing

Graphical User Interrfaces

Design With Classes

Multithreading Networks and Client Server Programming

Searching Sorting and Complexity Analysis

Filters

Exam 4: Strings and Text Files

A data structure is a compound unit that consists of several smaller pieces of data.

In the binary number system, each digit or bit has a positional value that is a power of what?

What file access method can be used to read a single line of input and return the line as a string, including the newline character?

Many applications now use data mangling to protect information transmitted on networks.

What does a block cipher utilize in order to change plaintext characters into two or more encrypted characters?

The absolute value of a digit is determined by raising the base of the system to the power specified by the position (baseposition).

The two digits in the base two number system are 0 and 1.

Your script is parsing filenames and is creating a count of how many files per file extension type exist within a directory. What slice could you use to extract the file extension substring, assuming the extensions are three letters only?

Data can be output to a text file using a(n) output object.

The string method isalphabetic returns True if the string contains only letters or False otherwise.

A module behaves like a function, but has a slightly different syntax.

The remove file system function is included in the os.path module.

The encryption method that replaces a character in a text with another character some given distance away in the alphabet from the original is known as what type of cipher?

What specific Python module can you use to determine the file size in bytes of a given file?

What does a mode string of 'r' indicate when opening a file in Python?

When you launch Python, what file system path does it start with?

You are running a Python script that is supposed to write data to an open file, but discover that the file contents are being erased each time the script runs. What is most likely the issue?

A method is always called with a given data value called an object, which is placed before the method name in the call.

The decimal number system is also called the base ten number system.

The decimal number system, which utilizes the numbers 0-9, is also known as what number system?

Introduction

Software Development Data Types and Expressions

Loops and Selection Statements

Lists and Dictionaries

Design With Functions

Simple Graphics and Image Processing

Graphical User Interrfaces

Design With Classes

Multithreading Networks and Client Server Programming

Searching Sorting and Complexity Analysis

Filters