WGU C949 Algorithms & Data Structures
Frequently Tested Exam Questions With
Verified Multiple Choice and Conceptual
Actual 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
1. Which statement describes a queue data structure? - ANSWER It is a
sequence of elements in which insertions can take place only at the back
end and deletions can take place only at the front end.
2. Which data structure allows inserting and deleting data elements at both
the front and the rear? - ANSWER Deques
3. Which data structure allows elements to be inserted and deleted from one
end and provides no direct access to the other end? - ANSWER Stack
4. What are the official indexes for the list list01 given this declaration? int[ ]
list01 = {0, 2, 4, 6, 8, 10}; - ANSWER 0, 1, 2, 3, 4, 5
5. Which abstract data type (ADT) has elements of the same type so that the
elements can be retrieved based on the index or position? - ANSWER
List
,6. Which data structure allows insertion and removal from only one end of the
data structure? - ANSWER Stack
7. Which data type does the mystery function return?
return_type mystery (int R)
{
int NumUnits = R;return NumUnits * 3.14;
} - ANSWER Double
8. Which category of data does ("FB", 75.00, 75.03, 74.90) represent in the
pseudocode?
import datetime
def middle(stock, date):
symbol, current, high, low = stock
return (((high + low) / 2), date)
9. Mid value, date = middle(("FB", 75.00, 75.03, 74.90),
datetime.date(2014, 10, 31)) - ANSWER Tuple
10.Which value is appropriate for Test1 given the expression?
char Test1; - ANSWER 'L'
11.Which value is appropriate for the variable middle given the pseudocode?
, function mystery()
{
string last;
string first;
char middle;
int phone;
float rate;
} - ANSWER 'D'
12.Which type of operation is represented in the pseudocode?
int x,y,z;
x=y=z=100; - ANSWER Assignment
13.What is the most efficient data type to use for this data set of a fixed size in
Java?
a = [0, 0, 1, 4, 7, 16, 31, 64, 127] - ANSWER Array
14.Which data type is appropriate for this array to store the given data?
a = ["AF", "71", "BC", "157", "BA", "253"] - ANSWER String
15.Which data type is appropriate for the given data set?
a = [1, 717, 23, 12, 314, 6] - ANSWER Int
Frequently Tested Exam Questions With
Verified Multiple Choice and Conceptual
Actual 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
1. Which statement describes a queue data structure? - ANSWER It is a
sequence of elements in which insertions can take place only at the back
end and deletions can take place only at the front end.
2. Which data structure allows inserting and deleting data elements at both
the front and the rear? - ANSWER Deques
3. Which data structure allows elements to be inserted and deleted from one
end and provides no direct access to the other end? - ANSWER Stack
4. What are the official indexes for the list list01 given this declaration? int[ ]
list01 = {0, 2, 4, 6, 8, 10}; - ANSWER 0, 1, 2, 3, 4, 5
5. Which abstract data type (ADT) has elements of the same type so that the
elements can be retrieved based on the index or position? - ANSWER
List
,6. Which data structure allows insertion and removal from only one end of the
data structure? - ANSWER Stack
7. Which data type does the mystery function return?
return_type mystery (int R)
{
int NumUnits = R;return NumUnits * 3.14;
} - ANSWER Double
8. Which category of data does ("FB", 75.00, 75.03, 74.90) represent in the
pseudocode?
import datetime
def middle(stock, date):
symbol, current, high, low = stock
return (((high + low) / 2), date)
9. Mid value, date = middle(("FB", 75.00, 75.03, 74.90),
datetime.date(2014, 10, 31)) - ANSWER Tuple
10.Which value is appropriate for Test1 given the expression?
char Test1; - ANSWER 'L'
11.Which value is appropriate for the variable middle given the pseudocode?
, function mystery()
{
string last;
string first;
char middle;
int phone;
float rate;
} - ANSWER 'D'
12.Which type of operation is represented in the pseudocode?
int x,y,z;
x=y=z=100; - ANSWER Assignment
13.What is the most efficient data type to use for this data set of a fixed size in
Java?
a = [0, 0, 1, 4, 7, 16, 31, 64, 127] - ANSWER Array
14.Which data type is appropriate for this array to store the given data?
a = ["AF", "71", "BC", "157", "BA", "253"] - ANSWER String
15.Which data type is appropriate for the given data set?
a = [1, 717, 23, 12, 314, 6] - ANSWER Int
