Capstone: Retrieving, Processing, and Visualizing Data with Python Quiz Answers

All Weeks Capstone: Retrieving, Processing, and Visualizing Data with Python Quiz Answers

In the capstone, students will build a series of applications to retrieve, process and visualize data using Python. The projects will involve all the elements of the specialization. In the first part of the capstone, students will do some visualizations to become familiar with the technologies in use and then will pursue their own project to visualize some other data that they have or can find.

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Capstone: Retrieving, Processing, and Visualizing Data with Python Quiz Answers

Week 01: Python for Everybody – A Review

Q1. What is the most common Unicode encoding when moving data between systems?

UTF-64
UTF-128
UTF-16
UTF-8
UTF-32

Q2. What is the decimal (Base-10) numeric value for the upper case letter “G” in the ASCII character set?

2048
7
1771
17
71

Q3. What word does the following sequence of numbers represent in ASCII:

108, 105, 115, 116

open
lost
http
list
fuss

Q4. How are strings stored internally in Python 3?

EBCDIC
UTF-16
Unicode
Latin
ASCII

Q5. When reading data across the network (i.e. from a URL) in Python 3, what method must be used to convert it to the internal format used by strings?

convert()
encode()
decode()
more()
msub()

Q6. Which of the following lines will never print out regardless of the value of “x”?

if x < 2 :
print("Below 2")
elif x < 0 :
print("Negative")
else :
print("Something else")

Below 2
Something else
Negative
All the lines will print out

Q7. Which of the following lines will never print out regardless of the value for x?

if x < 2 :
print("Below 2")
elif x < 20 :
print("Below 20")
elif x < 10 :
print("Below 10")
else :
print("Something else")

Below 10
Below 20
Something else
Below 2

Q8. What would the following Python code sequence print out?

zap = "hello there bob"
print(zap[4])

l
e
You would get an out-of-range error and the program would fail
hello
o
zap

Q9. Which of the following lines of Python code contains a syntax error?

x = 12
if x < 5:
print("smaller")
else:
print("bigger")
print("all done")

Correct Answer 3

Q10. What will the following Python program print out?

def fred():
print("Zap")
def jane():
print("ABC")
jane()
fred()
jane()

Zap Zap Zap
Zap ABC jane fred jane
ABC Zap jane
Zap ABC Zap
ABC Zap ABC

Q11. Where in the computer is a variable such as “X” stored?

x = 123

Central processing unit
Secondary Memory
Output Devices
Input Devices
Main Memory

Q12. What is the primary use of the Python dictionary?

To make sure that the definitions of the Python reserved words are available in different languages (French, Spanish, etc)
To store key / value pairs
To look up all of the methods which are available on a Python object
To insure that all Python reserved words are properly spelled

Q13. What does the following Python code print out?

stuff = ['joseph', 'sally', 'walter', 'tim']
print(stuff[2])

joseph
tim
walter
sally

Q14. What will the following Python program print out? (This is a bit tricky so look carefully).

def hello():
print("Hello")
print("There")
x = 10
x = x + 1

Nothing will print
Hello
There
11
11
x = 11

Q15. What will the following Python program print out?

x = -1
for value in [3, 41, 12, 9, 74, 15] :
if value > x :
x = value
print(x)

15
74
3
9
-1

Q16. What will the following Python program print out?

total = 0
for abc in range(5):
total = total + abc
print(total)

Q17. The following Python code causes a traceback:

a = "123"
b = 456
c = a + b
print(c)

Which line fails with a traceback?

Q18. In the following example, an error occurs in “line3” that normally causes a traceback if it were not in a try/except.

line1
try:
    line2
    line3
    line4
except:
    line5
line6

What is the sequence of lines executed in this program?

line1, line4, line5, line6
line1, line2, line3, line5, line6
line1, line2, line3, line6
line1, line2, line3, line4, line5, line6
line1, line5, line6

Q19. What would the following Python code print out?

abc = "With three words"
stuff = abc.split()
print(stuff)

[‘With the’, ‘ee words’]
[‘With’, ‘three’, ‘words’]
[‘w’, ‘i’, ‘t’, ‘h’]
[‘With’, ‘three words’]
[‘With three words’]

Q20. What would the following Python code print out?

abc = "With three words"
stuff = abc.split()
print(len(stuff))

Q21. Which of the following is not a good synonym for “class” in Python?

pattern
template
direction
blueprint

Q22. What is “self” typically used in a Python method within a class?

The number of parameters to the method
To refer to the instance in which the method is being called
To terminate a loop
To set the residual value in an expression where the method is used

Q23. How is a Python socket different than a Python file handle?

The socket does not read all of the data when it is opened
You can read and write using the same socket
Opening a socket will never fail, while opening a file can fail

Q24. In the following XML, what is “type”?

<person>
      <name>Chuck
      <phone type="intl">
               +1 734 303 4456
    </phone>
    <email hide="yes" />
</person>

An attribute
Tag
Value
XML syntax error
Simple element
Complex element

Q25. Which programming language serves as the basis for the JSON syntax?

JavaScript
Python
Java
SCALA
PHP

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