Question

1. hat are the values of the elements in the vector named names_1 after the following code is executed?
   vector<string> names_1 { "Mike", "Ben", "Joel", "Anne" };
   vector<string> names_2 { "Judy", "Samantha", "Kelly" };
   
   names_1.insert(names_1.end(), "Mary");
   names_1.erase(names_1.begin());        
   names_1.insert(names_1.begin() + 2, ++names_2.begin(), names_2.end());
   names_1.swap(names_2);
   names_1.erase(++names_1.begin());
   names_1.insert(names_1.begin(), ++names_2.begin(), names_2.begin() + 2);

   	a.	Joel, Judy, Samantha
   	b.	Judy, Mary, Joel, Mary
   	c.	Joel, Anne, Judy, Samantha
   	d.	Joel, Judy, Kelly

1.5 points   

QUESTION 12

1. What are the values of the key/value pairs in the map named products after the following code is executed?
   map<string, int> products { {"hammer", 14}, {"nails", 25}, {"wrench", 8} };
   products.insert_or_assign("wrench", 18);
   int quantity = products["drill"];

   	a.	hammer/14 nails/25 wrench/26 drill/-1
   	b.	drill/0 hammer/14 nails/25 wrench/18
   	c.	hammer/14 nails/25 wrench/26 drill/0
   	d.	drill/-1 hammer/14 nails/25 wrench/18

1.5 points   

QUESTION 13

1. To compare the data that’s stored in two structure objects, you can

   	a.	use the equality operator
   	b.	add an operator or function to the structure that provides that functionality
   	c.	compare one or more of the data members of the objects
   	d.	all of the above
   	e.	b and c only

1.5 points   

QUESTION 14

1. Which of the following containers has pointers that link to the previous and next elements?

   	a.	list
   	b.	map
   	c.	deque
   	d.	array

1.5 points   

QUESTION 15

1. The elements of a deque are stored in

   	a.	non-contiguous memory
   	b.	a combination of contiguous and non-contiguous memory
   	c.	contiguous memory

1.5 points   

QUESTION 16

1. What are the values of the enumerators in the enumeration that follows?
   enum class Terms {
       net_30_days = 30,
       net_60_days,
       net_90_days
   };

   	a.	30, 1, 2
   	b.	30, 31, 32
   	c.	30, 0, 1
   	d.	30, 60, 90

1.5 points   

QUESTION 17

1. Which type of error can cause a program to crash or yield unexpected results?

   	a.	runtime
   	b.	user
   	c.	syntax
   	d.	logic

1.5 points   

QUESTION 18

1. You can use a container adapter to

   	a.	Add functionality to a deque
   	b.	Adapt the deque to more specialized uses
   	c.	Create queues and stacks
   	d.	All of the above
   	e.	b and c only

1.5 points   

QUESTION 19

1. Which of the following statements about structures is/are true?

   	a.	A structure can define data members that store the data of a structure type.
   	b.	A structure can define member functions that work with the data members of the structure.
   	c.	A structure can define operators that work with the data members of the structure.
   	d.	All of the above
   	e.	a and c only

1.5 points   

QUESTION 20

1. Which of the following iterators can you use to iterate forward or backward and read and write repeatedly?

   	a.	bidirectional and above
   	b.	input and above
   	c.	random-access and above
   	d.	forward and above

Answer 1

Solution 11 and 12: Not sure about them dear, cannot provide you with the wrong solutions, thanks for understanding.

Solution 13: Option A is the correct option as the equality operator alone is actually enough to compare data that's stored in two structure objects.

Solution 14: Option A is the correct option as a linked list has the pointers that can point to the forward as well as the backward node.

Solution 15: Option C is the correct option as the elements that are present within the deque are actually stored in contiguous memory locations.

Solution 16: Option C is the correct option as the other variables would be initialized from 0 and 1 when not initialized in an enumeration.

Solution 17: Option A is the correct option as the runtime errors are actually responsible for the crashing of an application and the yield of unexpected results.

Solution 18: Option B is the correct option as the container adapters can be used for adding other functionalities to the deque.

Solution 19: Option A is the correct option as the structure allows the structure members to store the data of structure type.

Solution 20: Option A is the correct option as the Bidirectional iterators can be used for iterating forward as well as backward through the data structures.

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