Arrays Questions

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11.

The memory address of fifth element of an array can be calculated by the formula

A

LOC(Array[5]=Base(Array)+w(5-lower bound), where w is the number of words per memory cell for the array

B

LOC(Array[5])=Base(Array[5])+(5-lower bound), where w is the number of words per memory cell for the array

C

LOC(Array[5])=Base(Array[4])+(5-Upper bound), where w is the number of words per memory cell for the array

D

None of above

Correct Answer: A

None.

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12.

Two dimensional arrays are also called

A

tables arrays

B

matrix arrays

C

both of above

D

none of above

Correct Answer: C

None.

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13.

A variable P is called pointer if

A

P contains the address of an element in DATA

B

P points to the address of first element in DATA

C

P can store only memory addresses

D

P contain the DATA and the address of DATA

Correct Answer: A

None.

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14.

What is right way to Initialize array?

A

int num[6] = { 2, 4, 12, 5, 45, 5 };

B

int n{} = { 2, 4, 12, 5, 45, 5 };

C

int n{6} = { 2, 4, 12 };

D

int n(6) = { 2, 4, 12, 5, 45, 5 };

Correct Answer: A

None.

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15.

An array elements are always stored in ________ memory locations.

A

Sequential

B

Random

C

Sequential and Random

D

None of the above

Correct Answer: A

None.

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16.

Size of the array need not be specified, when

A

Initialization is a part of definition

B

It is a declaratrion

C

It is a formal parameter

D

All of these

Correct Answer: D

None.

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17.

What does the following declaration mean?

int (*ptr)[10];

A

ptr is array of pointers to 10 integers

B

ptr is a pointer to an array of 10 integers

C

ptr is an array of 10 integers

D

ptr is an pointer to array

Correct Answer: B

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18.

Array passed as an argument to a function is interpreted as

A

Address of the array.

B

Values of the first elements of the array.

C

Address of the first element of the array.

D

Number of element of the array.

Correct Answer: C

None.

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19.

Which of the following correctly accesses the seventh element stored in arr, an array with 100 elements?

A

arr[6]

B

arr[7]

C

arr{6}

D

arr{7}

Correct Answer: A

None.

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20.

The smallest element of an array

A

lower bound

B

upper bound

C

range

D

extraction

Correct Answer: A

None.

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