FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 4: Strings and Text Files

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 21

Multiple Choice

Review LaterAdd Note

Review Later

What os.path module function can you use to convert a path to a pathname appropriate for the current file system?

A) localize(path)
B) system(path)
C) convert(path)
D) normcase(path)

E) A) and C)
F) A) and D)

Correct Answer

verified

Show Answer

Question 22

Multiple Choice

Review LaterAdd Note

Review Later

What is the decimal number 98 in binary?

A) 110010‬
B) 1100011
C) 1100010‬
D) ‭1110010‬

E) A) and B)
F) B) and C)

Correct Answer

verified

Show Answer

Question 23

Multiple Choice

Review LaterAdd Note

What does the os module function remove do when called?

The string method isnumeric returns True if the string contains only digits or False otherwise.

When using the open function to open a file for input (i.e., using 'r' as the mode string), if the file does not exist, Python raises an error.

You are running a Python script that is supposed to write data to an open file, but discover that the file contents are not updating even after the script finishes. What is most likely the issue?

All data output to or input from a text file must be strings.

After input is finished, another call to read returns an empty string to indicate that the end of the file has been reached.

What is the value of the binary number 10010110 in base-10?

Some applications extract portions of strings called characters.

What os module function should you use to get the path of the current working directory?

You are parsing a comma separated value string with Python. What method can you use to separate the values in each line and place them in a list?

When using the open function to open a file for output (i.e., using 'w' as the mode string), if the file does not exist, Python raises an error.

A binary number is sometimes referred to as a string of bits or a bit string.

What string method can you use to locate the lowest index in a string named s where substring "findme" is found?

The file method write expects a single string as an argument.

When used with strings, the left operand of Python's in operator is a target substring and the right operand is the string to be searched.

In Python, all data values are objects.

When a sender of information encrypts that information, what is the resulting text known as?

A legacy program is outputting values in octal format, and you need to translate the octal to hexadecimal. What is 173 in octal expressed as a hexadecimal value?