50 question MC corrections

• Questions I got wrong and Corrections. Score: 43/50
  • Question 5
    • Information about which restaurants Brandon and Cynthia have visited in the past is not needed. Restaurants are recommended based on whether they can accommodate all allergies and dietary restrictions, not based on whether group members have been there before. Information about which food allergies and dietary restrictions can be accommodated at nearby restaurants is needed so that a restaurant can be recommended for the group.
  • Question 28
    • This code segment incorrectly charges customers who use more than 25 units of electricity. These customers are charged $7 per unit for all units, when they should be charged this rate only for the number of units above 25. For examples, if a customer used 32 units of electricity, they should be charged $5 for the first 25 and $7 for the additional 7 units (32 – 25 = 7 units), for a total charge of $174. This code segment would incorrectly charge the customer $224 for the 32 units.
  • Question 35
    • The last line in this code segment sets maxPS to 50 regardless of the value of time.
  • Question 42
    • After initially assigning values to the variables, the code segment assigns the value 4 to num3 and assigns the value 8 to num1. The value of sum at the end of the code segment is 8 + 4 + 4, or 16.
  • Question 43
    • This is the value of x after the code segment is executed, not the value of result.
  • Question 47
    • The eighth statement assigns the value of c + d / 2 (which is 50) to d.
  • Question 50
    • This statement concatenates firstName and lastName and then assigns the first character of the result (which is the first character of firstName) to initials.

Questions I got wrong and Corrections. Score: 43/50

Question 5

Information about which restaurants Brandon and Cynthia have visited in the past is not needed. Restaurants are recommended based on whether they can accommodate all allergies and dietary restrictions, not based on whether group members have been there before. Information about which food allergies and dietary restrictions can be accommodated at nearby restaurants is needed so that a restaurant can be recommended for the group.

Question 28

This code segment incorrectly charges customers who use more than 25 units of electricity. These customers are charged $7 per unit for all units, when they should be charged this rate only for the number of units above 25. For examples, if a customer used 32 units of electricity, they should be charged $5 for the first 25 and $7 for the additional 7 units (32 – 25 = 7 units), for a total charge of $174. This code segment would incorrectly charge the customer $224 for the 32 units.

Question 35

The last line in this code segment sets maxPS to 50 regardless of the value of time.

Question 42

After initially assigning values to the variables, the code segment assigns the value 4 to num3 and assigns the value 8 to num1. The value of sum at the end of the code segment is 8 + 4 + 4, or 16.

Question 43

This is the value of x after the code segment is executed, not the value of result.

Question 47

The eighth statement assigns the value of c + d / 2 (which is 50) to d.

Question 50

This statement concatenates firstName and lastName and then assigns the first character of the result (which is the first character of firstName) to initials.