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C949 Data Structures and Algorithms Pre-Assessment - Multiple Choice Questions with correct Answers
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C949 Data Structures and Algorithms Pre-Assessment - Multiple Choice
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C949 Data Structures and AlgorithmsPre-Assessment - Multiple Choice
D - answerWhich 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.
B - answerWhich data structure allows inserting and deleting data elements at both the
front and the rear?
A.) Trees
B.) Deques
C.) Stacks
D.) Queues
C - answerWhich 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
A - answerWhat 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
A - answerWhich 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
D.) Queue
C - answerWhich data structure allows insertion and removal from only one end of the
data structure?
A.) List
B.) Queue
C.) Stack
D.) Deque
C - answerWhich 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
C - answerWhich 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
A - answerWhich value is appropriate for Test1 given the expression?
char Test1;
A.) 'L'
B.) 77
, C.) 6.5
D.) "value"
A - answerWhich value is appropriate for the variable middle given the pseudocode?
function mystery()
{
string last;
string first;
char middle;
int phone;
float rate;
}
A.) 'D'
B.) 'Da'
C.) "david"
D.) "David"
B - answerWhich type of operation is represented in the pseudocode?
int x,y,z;
x=y=z=100;
A.) Ternary
B.) Assignment
C.) Comparison
D. Equality
C - answerWhat 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]
A.) List
B.) Tuple
C.) Array
D.) Dictionary
D - answerWhich data type is appropriate for this array to store the given data?
a = ["AF", "71", "BC", "157", "BA", "253"]
A.) Byte
B.) Char
C.) Short
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