QUESTION 1 1. Which statement is not correct about data? A. Data is information

ID: 3753154 • Letter: Q

Question

QUESTION 1

1. Which statement is not correct about data?

Data is information

Data can be input data or output data

Studies show that programs spend only 10% of their execution time for searching through memory to locate the data they process

The source of data can be any device attached to a computer system

QUESTION 2

2. Algorithm speed will consider the following factors:

relative speed of the algorithm

absolute speed of the algorithm

do not need to consider anything

a and b

QUESTION 3

3. Three criteria are used to determine whether a data structure is acceptable for a particular application are:

Cost, Speed and memory overhead

Cost, type of storage, type of memory

a and b

None of above

QUESTION 4

4. Which one is true for Linear List?

It is a collection of n nodes if there is a unique first node N1, unique last node Nn and only one node in the list

It is a collection of n nodes if there is a unique first node N1, unique last node Nn and for any other node, only one node comes before it and only one node comes after it

It is a collection of n nodes if there is a unique first node N1, unique last node Nn and for any other node, it can have one or more nodes come before or after it

None of above

QUESTION 5

5. Two objects, objectA and objectB, are objects of one class. The objectA is copied to objectB. How many objects exist after the copy if the copy is performed as a deep copy?(PAGE 41)

cannot know

1 or 2 depending on real cases

QUESTION 6

6. Assume 16 lines of code per person per day. Estimate a program will consist of 300,000 lines of code. If the burdened cost of a programmer’s efforts is $150 per hour, determine the code of the program
(page 10)

45 million dollars

10 million dollars

90 million dollars

22.5 million dollars

QUESTION 7

7. Which one is not correct about the class?

Class is a programmer-defined type

Class consists of data definitions and methods that operate on the data

public class allows a method in any application to declare a reference variable of this class type

Class is one of primitive data type that Java defines in Java library

QUESTION 8

8. There are 2 nodes are stored in a linear list. What node comes just before and just after the first node?

None and last node

Node 0 and node 2

None and node 2

a and c

QUESTION 9

9. Put the terms, node, field and data set in size order from small to large: (page 11-12)

Data set, field, node

Field , data set, node

Field, node, data set

Node, data set, field

QUESTION 10

10. There are two Access Modes that are used to specify the node to be accessed:

The node number mode

The type of the node mode

The key field mode

a and b

a and c

QUESTION 11

11. The following is not true about Binary Search :

Binary Search algorithm is a technique for rapidly finding a data item stored in an array

Binary Search algorithm will return the index of the array elements where the search value is stored

Binary Search algorithm can be applied on the unsorted arrays

Binary Search algorithm assumes that the data in array are already sorted. in ascending order

QUESTION 12

12. The basic operations performed on data structures:

Insert, delete, fetch, update

Insert, search, delete, update

Remove, search, insert, update

fetch, modify, delete, read

QUESTION 13

13. Built-in data structures are ____?

Schemes for storing data that are conceived and implemented by the programmer of a particular program

schemes for storing data that are part of a programming language

constructed from structures, such as, parallel arrays, class definitions, hashing schemes, link lists, trees, stacks and queues.

None of above

QUESTION 14

14. Which one is correct about array?

int [ ] myInt = new int;

int [3] myInt = new int;

int [ ] myInt = new int[3];

int [ ] myInt = new int(3);

QUESTION 15

15. The factors determine the cost of software are: (page 10)

Lines of code that the software contains

Design, implement, testing, documentation, burdened labor rate

a and b

None of above

QUESTION 16

16. Which one is not correct about Inheritance?

Inheritance allows defining a classA that can inherits all the attributes and methods of classB and does not need to redefine.

The classA is called subclass, classB is called superclass

The classA is called the parent class and the classB is called the child class

extends is the keyword that is used to indicate the inheritance

QUESTION 17

17. Procedural abstraction is:

We do not need to know what the method is to use it

We do not need to know the implementation details of the method in order to use it

We do not need to know what methods the class has to use it

We do not to know anything about the method to use it

QUESTION 18

18. Which one is not correct about encapsulation?

Encapsulation helps to reduce the cost of the software development. and maintenance

Encapsulation produce the code is more easily reused

Encapsulation is the idea that we write the code in a way that establishes compiler enforced protocols for accessing the data that the program process

Encapsulation provides the code such that all the fields can be access from everywhere outside the class

QUESTION 19

19. Data Structure is ____

An organization of information usually in the memory

For better algorithm efficiency and improves the program’s performance

a and b

none of above

QUESTION 20

20. A = 23n + 36n2 B = 6 + nlog2(n) + n C = log2n + 36n2

Which one of the following is correct?

TA = O(n2) TB = O(n) TC = O(log2n)

TA = O(n2) TB = O(nlog2(n)) TC = O(n2)

TA = O(n2) TB = O(+ nlog2(n)) TC = O(log2n)

TA = O(n2) TB = O(n) TC = O(n2)

Data is information

Data can be input data or output data

Studies show that programs spend only 10% of their execution time for searching through memory to locate the data they process

The source of data can be any device attached to a computer system

Explanation / Answer

Let me know if you have any doubt.

Answer1) C. Studies show that programs spend only 10% of their execution time for searching through memory to locate the data they process.
Answer2) D. a and b
Answer3) B. Cost, type of storage, type of memory.
Answer4) C.It is a collection of n nodes if there is a unique first node N1, unique last node Nn and for any other node, it can have one or more nodes come before or after it.
Answer5) B. 2
Answer6) D. 22.5 million dollars
explanation:
total lines of code each day, lines_per_day= 300000/16
cost=> lines_per_day*150*8 => 22500000

Answer7) D. Class is one of primitive data type that Java defines in Java library
Answer8) C. None and node 2
Answar9) c . field, node, data set.
Answer10) e. a and c
Answer11) C. Binary Search algorithm can be applied on the unsorted arrays
Answer12) B. Insert, search, delete, update
Answer13) A.Schemes for storing data that are conceived and implemented by the programmer of a particular program
Answer14) C.int [ ] myInt = new int[3];
Answer15) B.Design, implement, testing, documentation, burdened labor rate
Answer16) C. The classA is called the parent class and the classB is called the child class
Answer17) B.We do not need to know the implementation details of the method in order to use it
Answer18) D.Encapsulation provides the code such that all the fields can be access from everywhere outside the class
Answer19) A. An organization of information usually in the memory
Answer20) B. TA = O(n2) TB = O(nlog2(n)) TC = O(n2)

Navigate

QUESTION 1 1. Which of the followings are true about PDC? PDC is inhibited by ac

QUESTION 1 1. Who was Charles Darwin and what was he famous for? A. He was a mat

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.

QUESTION 1 1. Which statement is not correct about data? A. Data is information

Question

Explanation / Answer

Related Questions

Navigate