Which of the sizes of data given below require us to shut off all interrupts while inputting them into a volatile variable?(a) 1 bit(b) 2 bit(c) 2 bytes(d) 0.5 bytesI got this question by my school teacher while I was bunking the class.The above asked question is from Variable Scope and Qualifiers topic in chapter Arduino Programming of Arduino

Which of the sizes of data given below require us to shut off all inte

1.	Which of the sizes of data given below require us to shut off all interrupts while inputting them into a volatile variable?(a) 1 bit(b) 2 bit(c) 2 bytes(d) 0.5 bytesI got this question by my school teacher while I was bunking the class.The above asked question is from Variable Scope and Qualifiers topic in chapter Arduino Programming of Arduino
Answer» Correct option is (C) 2 bytes For explanation I would say: The volatile keyword has a LOT of uses and advantages in programming. However, when it COMES to inputting large quantities of data, ANYTHING more than a bit in size will definitely result in the formation of garbage values. So, in order to input that kind of data we need to shut off all interrupts before inputting the VALUE.

Discussion

No Comment Found

Related InterviewSolutions

When the sizeof() function is invoked on an array. What information does it return?(a) Number of elements in the array(b) The largest element in the array(c) The total sum of the ASCII values of the elements in the array(d) The largest ASCII value of any element in the arrayThis question was posed to me during a job interview.My enquiry is from The sizeof() Function topic in portion Arduino Programming of Arduino
What is the conversion type for reinterpret casting?(a) Pointer to Variable(b) Variable to Variable(c) Pointer to Pointer(d) Variable to PointerThe question was asked in an interview.My doubt is from Type Conversions in division Arduino Programming of Arduino
Which header file contains the PROGMEM Utility?(a) The avr/pgmspace.h header file(b) The pmspace.h header file(c) The avr/pspace.h header file(d) The avr/progmem.h header fileI got this question in quiz.My question is taken from PROGMEM Utility topic in section Arduino Programming of Arduino
What is the use of the tan() function?(a) To find the sine of a number(b) To find the cosine of a number(c) To find the tan of a number(d) To find the inverse tan of a numberI have been asked this question during an online exam.I want to ask this question from Mathematical Functions in portion Arduino Programming of Arduino
What is the return type of the substr() function?(a) int(b) long(c) byte(d) stringI got this question during an online interview.This is a very interesting question from String Manipulation in portion Arduino Programming of Arduino
Is there a difference between the = and the == operators?(a) Yes(b) NoThis question was posed to me during an interview for a job.The query is from Operators in chapter Arduino Programming of Arduino
What is the function in Arduino that is capable of reading Strings from a stream and store the acquired value into a String?(a) Stream.readstring()(b) Stream.stringread()(c) Stream.readString()(d) Stream.readfromstring()I got this question in an interview.My enquiry is from Serial and Stream Communications topic in division Arduino Programming of Arduino
Which library allows for manipulating the real time clock of an Arduino?(a) RTC Library(b) RT Library(c) Clock Library(d) Time LibraryThis question was addressed to me during an online exam.Origin of the question is Other Libraries in division Arduino Programming of Arduino
How many tone() functions can be invoked to run simultaneously on an Arduino Board?(a) As many pins are present(b) Infinite number(c) Only one(d) Depending on the number of timers presentThe question was asked in exam.Enquiry is from Advanced Input Output in portion Arduino Programming of Arduino
What is the difference between an IDE and a compiler?(a) The IDE executes the code while the compiler gives a graphical environment for writing the code(b) The compiler executes the code while the IDE gives a graphical environment for writing the code(c) The compiler links the code to the respective files and the IDE takes it from there(d) The compiler and the IDE are the same thingThe question was posed to me during an online exam.This interesting question is from Programming topic in section Arduino Programming of Arduino

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment