Answer: Closed port
Explanation:
Port 23 basically refers to the telnet which provide very severe services and it is used to access the server remotely. We should always closed the port 23, when we are not using telnet services because to prevent it from being hacked due to the port scanning.
As, now a days it is rarely used by the hackers as it is difficult to access this services from the server.
Therefore, Closed port is the correct answer.
Answer:
authentication
Explanation:
At the authentication process, there is a way of identifying a user, this is typically done by having the user enter a valid user name and valid password before access is granted. Here at authentication the process is based on each user having a unique set of criteria for gaining access.
The AAA server have to ascertain by comparing a user's authentication credentials with other user credentials stored in a database. In the event the credentials match, the user is granted access to the network. But on the other hand, If the credentials varies, and authentication fails then network access will be denied.
Using the APA style or the<span> American Psychological Association style of referencing or citing sources, the structure for website reference is as follows:
</span>Last, F. M. (Year, Month Date Published). Article title<span>. Retrieved from URL. Hence, for the problem:
</span>Last, F. M. (Year, Month Date Published). Article title<span>. Retrieved from http://www.asha.org</span>
