C949 Data Structures and Algorithms PreAssessment - Multiple Choice

C949 Data Structures and Algorithms PreAssessment - Multiple Choic
Study online at https://quizlet.com/_935bch
1. D: 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.
2. B: Which data structure allows inserting and deleting data elements at both the
front and the rear?

A.) Trees
B.) Deques
C.) Stacks
D.) Queues
3. C: 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
4. A: 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
5. 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
D.) Queue


, C949 Data Structures and Algorithms PreAssessment - Multiple Choic
Study online at https://quizlet.com/_935bch
6. C: Which data structure allows insertion and removal from only one end of the
data structure?

A.) List
B.) Queue
C.) Stack
D.) Deque
7. 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
8. C: 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
9. A: Which value is appropriate for Test1 given the expression?

char Test1;

A.) 'L'
B.) 77



, C949 Data Structures and Algorithms PreAssessment - Multiple Choic
Study online at https://quizlet.com/_935bch
C.) 6.5
D.) "value"
10. A: Which 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"
11. B: Which type of operation is represented in the pseudocode?

int x,y,z;
x=y=z=100;

A.) Ternary
B.) Assignment
C.) Comparison
D. Equality
12. C: 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]

A.) List
B.) Tuple
C.) Array
D.) Dictionary
13. D: Which data type is appropriate for this array to store the given data?

a = ["AF", "71", "BC", "157", "BA", "253"]