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Arrays Questions

Home > Technical Aptitude > Data Structures > Arrays > General Questions
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Choose the correct option.

Each array declaration need not give, implicitly or explicitly, the information about


Athe name of array

Bthe data type of array

Cthe first data from the set to be stored

Dthe index set of the array

Answer: Option C

Explanation:

Here is no explanation for this answer

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Choose the correct option.

The elements of an array are stored successively in memory cells because


Aby this way computer can keep track only the address of the first element and the addresses of other elements can be calculated

Bthe architecture of computer memory does not allow arrays to store other than serially

Cboth of above

Dnone of above

Answer: Option A

Explanation:

Here is no explanation for this answer

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What does the following function do if S is an array used to implement a stack.

float peep (float S[], int *t, int i)
{
float val;
if( (*t-i+1) > 0)
{
val = S[*t-i+1];
return val;
}
} ?


AReturns the ith value from top of the stack

BReturns the value at the top of the stack

CIt gives a compilation error

DReturns the value at the ith postion of the array

Answer: Option A

Explanation:

Here is no explanation for this answer

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Choose the correct option.

You want to find the nth element of a set of numbers. If you store the numbers in


AFinding the nth element is slower if it was stored in an array

BFinding the nth element is faster if it was stored in an array

CFinding the nth element takes the same amount of time across all data structures

DFinding the nth element is slower if it was stored in a hash table

Answer: Option B

Explanation:

Here is no explanation for this answer

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Choose the correct option.

Arrays are best data structures


Afor relatively permanent collections of data

Bfor the size of the structure and the data in the structure are constantly changing

Cfor both of above situation

Dfor none of above situation

Answer: Option A

Explanation:

Here is no explanation for this answer

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Choose the correct option.

You wish to store a small amount of data and make it available for rapid access. You do not have a need for the data to be sorted, uniqueness is not an issue and the data will remain fairly static Which data structure might be most suitable for this requirement?


ATreeSet

BHashMap

CLinkedList

Dan array

Answer: Option D

Explanation:

Here is no explanation for this answer

Workspace


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