Microprocessor Mock Test 2

10%

Question 1 of 10

1. If at a time Ao and BHE(active low) both are zero then, the chip(s) selected will be

RAM

ONLY RAM

RAM and ROM

ROM

Question 1 of 10

Question 2 of 10

2. If the microprocessor has 10 address lines, then the number of memory locations it is able to address is

none

512

1024

2048

Question 2 of 10

Question 3 of 10

3. To estimate the size of an executable program before it is assembled and linked, the programming methodology concerned is by writing

programs with more than one segment for data and code

programs with more than one segment for stack

programs with FAR subroutines each of size up to 64KB

all of the mentioned

Question 3 of 10

Question 4 of 10

4. Inserting the statements and instructions represented by macro, directly at the place of the macroname, in the program, is known as

initializing a macro

none of the mentioned

inserting a macro

calling a macro

Question 4 of 10

Question 5 of 10

5. Which of the following statements is incorrect?

macro requires less time of execution than that of procedure

macro uses stack memory

macroname can be anything except registers and mnemonics

complete code of instruction string is inserted at each place, wherever the macroname appears

Question 5 of 10

Question 6 of 10

6. While performing read operation, one must take care that much current should not be

sourced or sinked from data lines

sourced from data lines

sinked from address lines

sinked from data lines

Question 6 of 10

Question 7 of 10

7. The input and output operations are respectively similar to the operations,

write, read

read, write

read, read

write, write

Question 7 of 10

Question 8 of 10

8. The end of a macro can be represented by the directive.

ENDD

ENDS

END

ENDM

Question 8 of 10

Question 9 of 10

9. The INTR signal can be masked by resetting the

MASK flag

INTERRUPT flag

DIRECTION flag

TRAP flag

Question 9 of 10

Question 10 of 10

10. A timer that derives pulse for refreshing action or time for which a dynamic RAM cell can hold data charge level practically constant is

qualitative timer

refresh timer

data managing timer

constant timer

Question 10 of 10