A pro of HCI technology is that its user friendly and a con about it is that you have to teach the user what to do or guide them!
Option A. is the correct answer the other three are not professional behaviour if you would like an explanation as to why they are not just comment
Answer:
Consider the language defined by the following regular expression. (x*y | zy*)* 1. Does zyyxz belong to the language?
O. No, because zyy does not belong to x*y nor zy*
2. Does zyyzy belong to the language?
Yes, because both zy and zyy belong to zy*.
Explanation:
Answer: The answer would be "B" - language that includes terms that only a select few can understand
Explanation:
If a client initiates the SMTP communication using an EHLO (Extended Hello) command instead of the HELO command some additional SMTP commands are often available. They are often referred to as Extended SMTP (ESMTP) commands or SMTP service extensions. Every server can have its own set of extended SMTP commands.
