Assuming int is of 4bytes, what is the size of int arr[15];?
a) 15
b) 19
c) 11
d) 60
Explanation: Since there are 15 int elements and each int is of 4bytes, we get 15*4 = 60bytes.
In general, the index of the first element in an array is………..
a) 0
b) -1
c) 2
d) 1
Explanation: In general, Array Indexing starts from 0. Thus, the index of the first element in an array is 0.
Elements in an array are accessed……
a) randomly
b) sequentially
c) exponentially
d) logarithmically
Explanation: Elements in an array are accessed randomly. In Linked lists, elements are accessed sequentially.
Process of inserting an element in stack is called…..
a) Create
b) Push
c) Evaluation
d) Pop
Explanation: Push operation allows users to insert elements in the stack. If the stack is filled completely and trying to perform push operation stack – overflow can happen.
Process of removing an element from stack is called……
a) Create
b) Push
c) Evaluation
d) Pop
Explanation: Elements in the stack are removed using pop operation. Pop operation removes the top most element in the stack i.e. last entered element.
In a stack, if a user tries to remove an element from an empty stack it is called
a) Underflow
b) Empty collection
c) Overflow
d) Garbage Collection
Explanation: Underflow occurs when the user performs a pop operation on an empty stack. Overflow occurs when the stack is full and the user performs a push operation. Garbage Collection is used to recover the memory occupied by objects that are no longer used.
