The following are statements related to queues. (i) The last item to be added to a queue is the first item to be removed (ii) A queue is a structure in which both ends are not used (iii) The last element hasn’t to wait until all elements preceding it on the queue are removed(iv)A queue is said to be a last-in-first-out list or LIFO data structure. Which of the above is/are related to normal queues?

Data Structures

Mid Term

The following are statements related to queues.

(i) The last item to be added to a queue is the first item to be removed

(ii) A queue is a structure in which both ends are not used

(iii) The last element hasn’t to wait until all elements preceding it on the queue are removed

(iv)A queue is said to be a last-in-first-out list or LIFO data structure.

Which of the above is/are related to normal queues?

(iii) and (ii) only

(i), (ii) and (iv) only

(ii) and (iv) only

None of the given options

Similar Questions

A queue where the delimiter -queue operation depends not on FIFO, is called a priority queue

False

True

The data of the problem is of 2GB and the hard disk is of 1GB capacity, to solve this problem we should

Use better data structures

Increase the hard disk space

Use the better algorithm

Use as much data as we can store on the hard disk

Consider the function X as under

int X (int& Value) 
{ 
return Value; 
}

Now a and b are integers in a calling function. Which one of the following is a valid call to the above function X.

a = X (b) ;

B. a = X (&b) ; C.

a = X (*b) ;

None of the given optionions

In the call by value methodology, a copy of the object is passed to the called function.

False

True

The tree data structure is a

Linear data structure

Non-linear data structure

Graphical data structure

D. Data structure like queue

When should you use a const reference parameter?

Whenever the parameter has huge size.

B. Whenever the parameter has huge size, the function changes the parameter within its body, and you do NOT want these changes to alter the actual argument. C.

Whenever the parameter has huge size, the function changes the parameter within its body, and you DO want these changes to alter the actual argument.

Whenever the parameter has huge size, and the function does not change the parameter within its body.

Here is the start of a C++ class declaration:

class foo 
     { 
  public: 
void x(foo f);
void y(const foo f); 
void z(foo f) const;

Which of the three member functions can alter the PRIVATE member variables of the foo object that activates the function?

Only x can alter the private member variables of the object that activates the function.

Only y can alter the private member variables of the object that activates the function.

Only z can alter the private member variables of the object that activates the function.

Two of the functions can alter the private member variables of the object that activates the function.

What is the maximum depth of recursive calls a function may make?

n (where n is the argument)

D. There is no fixed maximum

Suppose n is the number of nodes in a complete Binary Tree then maximum steps required for a search operation are,

Log2 (n+1) -1

B. Log2 (n+1) C.

Log2 (n)-1

Log2 (n)

10.

In the linked list implementation of the stack class, where does the push member function places the new entry on the linked list?

At the head

At the tail

After all other entries that are greater than the new entry.

After all other entries that are smaller than the new entry.

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