WGU C949 - Data Structures and Algorithms Pre-Assessment | FREQUENTLY TESTED QUESTIONS WITH CORRECT ANSWERS | BRAND NEW!

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WGU C949 - Data Structures and Algorithms Pre-Assessment |
FREQUENTLY TESTED QUESTIONS WITH CORRECT ANSWERS |
BRAND NEW!


Which statement describes a queue data structure?


A.) It is a sequence of elements in which insertion and deletion takes
place at one end.
B.) It is a sequence of elements in which insertion and deletion takes
place at both ends.
C.) It is a sequence of elements in which insertion can take place
anywhere in the sequence and deletion takes place only at the front.
D.) 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.
......ANSWER......D


Which data structure allows inserting and deleting data elements at
both the front and the rear?


A.) Trees
B.) Deques
C.) Stacks
D.) Queues ......ANSWER......B

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Which data structure allows elements to be inserted and deleted from
one end and provides no direct access to the other end?


A.) List
B.) Deque
C.) Stack
D.) Queue ......ANSWER......C


What are the official indexes for the list list01 given this declaration?


int[ ] list01 = {0, 2, 4, 6, 8, 10};


A.) 0, 1, 2, 3, 4, 5
B.) 0, 2, 4, 6, 8, 10
C.) 1, 2, 3, 4, 5, 6
D.) 2, 4, 6, 8, 10, 12 ......ANSWER......A


Which abstract data type (ADT) has elements of the same type so that
the elements can be retrieved based on the index or position?


A.) List
B.) Bag
C.) Stack

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D.) Queue ......ANSWER......A


Which data structure allows insertion and removal from only one end of
the data structure?


A.) List
B.) Queue
C.) Stack
D.) Deque ......ANSWER......C


Which data type does the mystery function return?return_type mystery
(int R)


{
int NumUnits = R;
return NumUnits * 3.14;
}


A.) Byte
B.) String
C.) Double
D.) Boolean ......ANSWER......C

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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))


A.) List
B.) Float
C.) Tuple
D.) Operator ......ANSWER......C


Which value is appropriate for Test1 given the expression?


char Test1;


A.) 'L'
B.) 77
C.) 6.5