What will be the output of the following program?

#include <stdio.h>

struct st1

{

int a;

struct st1 *ptr1 ;

};

main( )

{

struct st1 w1,w2;

w1.a = 251 ;

w2.a = 351 ;

w1.ptr1 = &w2 ;

w2.ptr1 = &w1 ;

printf ( "%d %d", w1.ptr1 –> a, w2.ptr1 –> a ) ;

}

Which of the following statements is/are false about a pointer?

In microcontroller 8051 with 256 bytes of RAM, what is the amount of memory provided to SFR registers?

Which of the following are types of hardware interrupts?

Which of the following watchdog timer registers are of read/write type?

i) Watchdog timer control register

ii) Timer_A interrupt vector register

iii) SFR interrupt enable register 1

iv) SFR interrupt flag register 1

In relation to system reset and initialization, which of the following options can trigger the Power-Up Clear (PUC) signal?

i) The Power-On Reset (POR) signal.

ii) Security key violation of a flash memory.

iii) Security key violation of a watchdog timer.

iv) Expiration of a watchdog timer when in the watchdog mode only.

What will happen if in data structure a pop operation on the stack causes the stack pointer to move past the origin of the stack?

In relation to the watchdog timer register (WDTCTL), what will happen if the value of WDTCNTCL bit is set to 1?

If a full binary tree has a total of 63 nodes, then what will be the numbers of the internal nodes and the leaves, respectively, in the binary tree?