Correct Answer : All of the above
Explanation : get() and at() differ in various ways. get() is not a part of array class, get is available under <tuple> header and get() takes array class also as a parameter to access the element.
<tuple>
Explanation : Any of the above signature can be used while using command line arguments in C++ programs
Correct Answer : argv[0]
Explanation : The first string in the list of command line arguments represents the name of the program which can be accessed by using argv[0].
Correct Answer : Number of command line arguments
Explanation : The first argument of the main() function represents the number of command line arguments that are passed.