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:
Domain Name System
Explanation:
The Domain Name System is a hierarchical and decentralized naming system for computers, services, or other resources connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities
Answer:
Clock (int hours, boolean isTicking, int diff) // constructor clock
{
this.hours = hours;
// set the instance variable hours
this.isTicking = isTicking;
// set the boolean variable isTicking
this.diff =diff;
//set the instance variable diff
}
Explanation:
Here we declared a constructor clock which has 3 parameter hours,boolean isTicking,and diff.
The int hours, diff is of int type and isTicking is of boolean type. In this constructor, we set the instance variables values by using this keyword.
Answer:
answer(s):
-set goals
-select a topic
-write down research questions
Hope this helped and sorry for the bold. <3
Explanation:
I'd suggest he uses
LOOKUP Function.
You can use the LOOKUP function when you need to look in a
single column or row and find a value from the same position in a corresponding
column or row. We have a much improved VLOOKUP that can also be used to search
one row or column or multiple rows and columns.
