01. Perform Operations using Modules and Tools 1

Question 1

What will be the output of the following program?

Answer 1

1. 3.141592653588973
2. 45
3. 44

Question 2

Explain how the date and time is retrieved and assigned to the variable

import datetime

todayWithTime = datetime.datetime.today()

Answer 2

1. First, the datetime module is imported.
2. Then, the variable is given a value but using the following in this order.
3. Access the datetime class
4. Access the datetime module
5. Use the built-in today function

Question 3

Provide one example as to why you would use the “import io” module

Answer 3

You would use the import io module if you wished to work with reading and writing to files.

Question 4

What module must be imported for this piece of code to work correctly?

Answer 4

1. The module to import would be “import sys”
2. This module will display system information along with errors messages such as “ZeroDivisionError”

Question 5

If you wished to create a folder, what module would you import?

Answer 5

import os

Question 6

What import statement would you use to generate a random integer value?

Answer 6

from random import randint

Question 7

When using the import datetime module, what does the function “strptime” do?

Answer 7

This function takes a string and converts it to a date.

Question 8

Which functions can be used from the math module? (Select all correct answers.)

Select one or more:

a. log
b. tan
c. radians
d. isinf
e. sin
f. floor
g. atan
h. isfinite
i. con
j. acos
k. log10
l. gcd
m. ceil
n. cosh
o. pow
p. asin
q. isnan
r. sqrt
s. degrees
t. pro
u. cos
v. factorial

Answer 8

a. log
b. tan
e. sin
f. floor
m. ceil
o. pow
r. sqrt
u. cos

Question 9

os.path is used to perform which action?

Select one:

a. Help find files and folders on specific paths
b. Display operating pathways
c. Configure files on the OS level
d. Run complex routines on known paths

Answer 9

a. Help find files and folders on specific paths

Question 10

The datetime class can be used to build a ________________

a: random library
b: number generator
c: database
d: date calculation

Answer 10

d: date calculation

Question 11

The sys module is used to perform which function?

Select one:

a. Allows users to log into a system
b. Gives the user access to display and process system information
c. Gives users access to system configurations
d. Turns the Python system on or off

Answer 11

b. Gives the user access to display and process system information

Question 12

Which code entry, when used with the random module, can be used to generate a random number between one and ten?

Select one:

a. rand_num = randint(1,10)
b. rand_num = randint(0,11)
c. rand_num = randnum(1,11)
d. rand_num = randint(0,10)
e. rand_num = randNum(1,11)

Answer 12

a. rand_num = randint(1,10)