The case of x⁰=1 is one you shouldn't overlook!
double powerto(double f, int exponent)
{
if (exponent < 0) { return 0; }
if (exponent == 0) { return 1.0; }
while (--exponent > 0) { f *= f; }
return f;
}
Answer:
The output of the code snippet will be ten “Hello” messages
Explanation:
while token = true
i = 0 sends “Hello” to the screen
i = 1 sends “Hello” to the screen
i = 2 sends “Hello” to the screen
i = 3 sends “Hello” to the screen
i = 4 sends “Hello” to the screen
i = 5 sends “Hello” to the screen
i = 6 sends “Hello” to the screen
i = 7 sends “Hello” to the screen
i = 8 sends “Hello” to the screen
i = 9 sends “Hello” to the screen
Answer:
C. Smart card
Explanation:
Token: Token can be described as when something used to represent other i.e some kind of facts or quality.
Password: Password can be defined as a combination of secret words which used to login or gain access to anything.
Smart card: Smart card is of small-sized cards which contains some data and can process some tasks itself when used with a system.
Biometrics: Biometrics are mainly the fingerprints of anyone which is used for any purpose or as a password for something.
So the most appropriate answer is option C.