Python Practice Test

Evaluate the following Python Practice Test arithmetic expression: (3*(1+2)**2 - (2**2)*3) What is the result?

• A. 3

• B. 13

• C. 15

• D. 69

Northwind Traders has hired you as an intern on the coding team that creates e-commerce applications. You must write a script that asks the user for a value. The value must be used as a whole number in a calculation, even if the user enters a decimal value. You need to write the code to meet the requirements. Which code segment should you use?

• A. totalltems = int(input(”How many items would you like?”))

• B. totalltems = str(input(”How many items would you like?”))

• C. totalltems = float(input(”How many items would you like?”))

• D. totalltems = input(”How many items would you like?”)

You are creating a Python Practice Test program that shows a congratulation message to employees on their service anniversary. You need to calculate the number of years of service and print a congratulatory message. You have written the following code. Line numbers are included for reference only. start = input(”How old were you on your start date?) end = input(’How old are you today?”) You need to complete the program. Which code should you use at line 03?

• A. print(“congratulations on “ + int(end - start) + “ years of service!”)

• B. print(“congratulations on “ + (int(end) - int(start)) + “ years of service!”)

• C. print(“congratulations on “ + str(end - start) + “ years of service!”)

• D. print(”congratulations on “ + str(int(end) - int(start)) + “ years of service!”)

You develop a Python Practice Test application for your company. You want to add notes to your code so other team members will understand it. What should you do?

• A. Place the notes after the last line of code separated by a blank line.

• B. Place the notes inside of parentheses on any line.

• C. Place the notes after the # sign on any line.

• D. Place the notes before the first line of code separated by a blank line.

You are writing an application that uses the sqrt function. The program must reference the function using the name squareRoot. You need to import the function. Which code segment should you use?

• A. from math import sqrt as squareRoot

• B. from math.sqrt as squareRoot

• C. import math.sqrt as squareRoot

• D. import sqrt from math as squareRoot

This question requires that you evaluate the underlined text to determine if it is correct. You write the following code: import sys try: file_in = open(”in.txt”, ‘r’) file_out = open(”out.txt”, ‘w+’) except lOError: print(’cannot open’, file_name) else: i = 1 for line in file_in: print(line. rstrip()) file_out.write(”line “ + str(i) + “: “ + line) i = i + 1 file_in.close() file_out.close () The out.txt file does not exist. You run the code. The code will execute without error. Review the underlined text. If it makes the statement correct, select “No change is needed.” If the statement is incorrect, select the answer choice that makes the statement correct.

• A. No change is needed.

• B. The code runs but generates a logic error.

• C. The code will generate a runtime error.

• D. The code will generate a syntax error.

You are writing a Python Practice Test program to automate inventory. Your first task is to read a file of inventory transactions. The file contains sales from the previous day, including the item id, price, and quantity. The code must meet the following requirements: Each line of the file must be read and printed. If a blank line is encountered, it must be ignored. When all lines have been read, the file must be closed. You create the following code. Line numbers are included for reference only. inventory = open(”inventory.txt”, ‘r’) eof = False hile eof == False: line = inventory.readline() Which code should you write for line O5 and line 06?

• A. 05 if line != ‘‘: 06 if line !=””:

• B. 05 if line != ‘ ’: 06 if line != None:

• C. 05 if line != ‘ ’: 06 if line != “”:

• D. 05 if line != ‘‘: 06 if line != “ ”:

Which error exists in the code?

• Line 05 has a syntax error because it should read (power == True).

• Line 08 has a syntax error because + = is an invalid statement.

• Line 07 causes a runtime error due to division by zero.

• Line 05 causes a runtime error because the expression is incomplete.

Which documentation syntax is correct?

• Returns the current balance of the bank account

• def get_balance(): /*Returns the current balance of the bank account*/ return balance

• //Returns the current balance of the bank account

• def get_balance(): #Returns the current balance of the bank account return balance

Which code should you write at line 02?

• name = input

• input(name)

• name = input()

• input("name")