The variables must begin with a letter of the alphabet, a dollar sign or a underscore. After the first character you may add numbers as well. All special characters besides the dollar sign and underscore and not allowed in variables.
Answer:
b) Reliability.
Explanation:
When the program gives correct output and fulfills the customer's requirements it is said to be reliable and said to be achieving reliability.
Correctness is when the program only provides correct solution.
Efficiency is when the program does the work in less time.
Usability means that the program is usable or not.
Answer:
If this is a true or false I guess my answer is true?
Explanation:
Here is the answer: <span>Tunneling</span>