Data Structures and Algorithms I, C949 WGU
Data Structures and Algorithms I, C949
WGU Exam Questions (208 terms) with
Certified Answers 2024
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.
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
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
, Data Structures and Algorithms I, C949 WGU
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)
mid_value, date = middle(("FB", 75.00, 75.03, 74.90),
datetime.date(2014, 10, 31)) - Answer: Tuple
Which data type does the mystery function return?
return_type mystery (int R)
{
int NumUnits = R;return NumUnits * 3.14;
} - Answer: Double
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'
, Data Structures and Algorithms I, C949 WGU
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
What is true about garbage collection? - Answer: It reclaims memory from data
structures implemented using linked allocations.
What is true about a data structure implemented using linked allocation? -
Answer: Storage is allocated using pointers to new locations as needed.
What are the array elements corresponding to the mid-values in the first and
second iterations of a binary search in an array arr = {45, 77, 89, 90, 94, 99, 100}
and key = 100? - Answer: 90 and 99
What is the effect on the object Computing regarding garbage collection?
Computing obj = new Computing(); obj = null; - Answer: It is automatically
available for garbage collection.
What are the mid-values in the first and second levels of recursion in this binary
search?
int arr = {46, 76, 89, 90, 94, 99, 100} and key = 99 - Answer: 90 and 99
Which data set is represented using the dictionary data type? - Answer: A set of
students and their test scores
, Data Structures and Algorithms I, C949 WGU
What is a characteristic of keys in an associative dictionary data type? - Answer:
They are unique and immutable.
Which method can be used to take a value out of a dictionary? - Answer:
D1[key].remove(value)
Given this data dictionary in Python:
dict = {'white':0x0000, 'black':0x1111}
Which command/function generates the output ['white','black']? - Answer:
dict.keys()
Items were added sequentially in this stack starting with 'ham':
'sausage'
'toast'
'eggs'
'ham'
What is the correct order of contents after the push operation is performed with
the value 'bacon'? - Answer: 'bacon'
'sausage'
'toast'
'eggs'
'ham'
Data Structures and Algorithms I, C949
WGU Exam Questions (208 terms) with
Certified Answers 2024
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.
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
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
, Data Structures and Algorithms I, C949 WGU
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)
mid_value, date = middle(("FB", 75.00, 75.03, 74.90),
datetime.date(2014, 10, 31)) - Answer: Tuple
Which data type does the mystery function return?
return_type mystery (int R)
{
int NumUnits = R;return NumUnits * 3.14;
} - Answer: Double
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'
, Data Structures and Algorithms I, C949 WGU
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
What is true about garbage collection? - Answer: It reclaims memory from data
structures implemented using linked allocations.
What is true about a data structure implemented using linked allocation? -
Answer: Storage is allocated using pointers to new locations as needed.
What are the array elements corresponding to the mid-values in the first and
second iterations of a binary search in an array arr = {45, 77, 89, 90, 94, 99, 100}
and key = 100? - Answer: 90 and 99
What is the effect on the object Computing regarding garbage collection?
Computing obj = new Computing(); obj = null; - Answer: It is automatically
available for garbage collection.
What are the mid-values in the first and second levels of recursion in this binary
search?
int arr = {46, 76, 89, 90, 94, 99, 100} and key = 99 - Answer: 90 and 99
Which data set is represented using the dictionary data type? - Answer: A set of
students and their test scores
, Data Structures and Algorithms I, C949 WGU
What is a characteristic of keys in an associative dictionary data type? - Answer:
They are unique and immutable.
Which method can be used to take a value out of a dictionary? - Answer:
D1[key].remove(value)
Given this data dictionary in Python:
dict = {'white':0x0000, 'black':0x1111}
Which command/function generates the output ['white','black']? - Answer:
dict.keys()
Items were added sequentially in this stack starting with 'ham':
'sausage'
'toast'
'eggs'
'ham'
What is the correct order of contents after the push operation is performed with
the value 'bacon'? - Answer: 'bacon'
'sausage'
'toast'
'eggs'
'ham'
