Arrays Questions

MCQ bookmark_border

101.

How will you implement dynamic arrays in Java?

A

Set

B

Map

C

HashMap

D

List

Correct Answer: D

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

102.

Which of the following is the correct syntax to declare an ArrayList in Java?

A

ArrayList al = new ArrayList();

B

ArrayList al = new ArrayList[];

C

ArrayList al() = new ArrayList();

D

ArrayList al[] = new ArrayList[];

Correct Answer: A

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

103.

In what type of dynamic array do you divide the array into two parts?

A

Hashed Array Tree

B

Geometric Array

C

Bounded-size dynamic array

D

None of the mentioned

Correct Answer: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

104.

What are the advantages of dynamic arrays?

A

Locality of reference

B

Data cache utilization

C

Random access

D

All of the mentioned

Correct Answer: D

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

105.

What is the time complexity for inserting/deleting at the beginning of the array?

A

O(1)

B

O(n)

C

O(logn)

D

O(nlogn)

Correct Answer: B

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

106.

What are parallel arrays?

A

Arrays of the same size

B

Arrays allocated one after the other

C

Arrays of the same number of elements

D

Arrays allocated dynamically

Correct Answer: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

107.

Which of the following can be called a parallel array implementation?

a)

   firstName  = ['Joe','Bob','Frank','Hans']
   lastName   = ['Smith','Seger','Sinatra','Schultze']
   heightInCM = [169,158,201,199]
 
   for i in xrange(len(firstName)):
       print "Name:",firstName[i], lastName[i]
       print "Height in CM:,",heightInCM[i]

b)

   firstName  = ['Joe','Bob','Frank','Hans']
   lastName   = ['Smith','Seger']
   heightInCM = [169,158]
 
   for i in xrange(len(firstName)):
       print "Name:",firstName[i], lastName[i]
       print "Height in CM:,",heightInCM[i]

c)

   firstName  = ['Joe','Bob']
   lastName   = ['Smith','Seger','Sinatra','Schultze']
   heightInCM = [169,158]
 
   for i in xrange(len(firstName)):
       print "Name:",firstName[i], lastName[i]
       print "Height in CM:,",heightInCM[i]

d) None of the mentioned

A

a

B

b

C

c

D

d

Correct Answer: A

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

108.

What are the advantages of parallel arrays over the traditional arrays?

A

When a language does not support records, parallel arrays can be used

B

Increased locality of reference

C

Ideal cache behavior

D

All of the mentioned

Correct Answer: D

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

109.

What are some of the disadvantages of parallel arrays?

A

Poor locality of reference for non-sequential access

B

Very little direct language support

C

Expensive to shrink or grow

D

All of the mentioned

Correct Answer: D

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

110.

What is a sorted array?

A

Arrays sorted in numerical order

B

Arrays sorted in alphabetical order

C

Elements of the array are placed at equally spaced addresses in the memory

D

All of the mentioned

Correct Answer: D

None.

Check Answer report_problem Report forum Discussion