Answer:
The answer is "Option D".
Explanation:
A system or a group of components that communicate with your environment through the sharing of resources, materials, and knowledge with a view to system regeneration and development is known as an Open system. In other words, we can say that it is a system that includes a non-proprietary hardware and advert-based software which enables third parties to add or interact with products to plug in the system and It is freely available on the internet. In this question, the incorrect options can be described as follows:
- In option A, The management system is used by an organization. It is a paid system that's why it is not correct.
- In option B, This system enables users in online communities and evaluates one another that's why it is not correct.
- In option C, This type of system provides resources for upgrade user knowledge. It is a paid system that's why it is not correct.
IP addresses provide a unique number for identifying devices that send and receive information on the Internet
-scav
Surge protector :) hope this helps
The correct answer is B. Primary DNS Server.
DNS records are type of data that is equivalent to IP address where the website or domain is located. DNS records are normally stored in DNS server in a raw or flat file. A host, using port number 53 will send a DNS request to the server. If the computer has stored it's data or record in it's database, it will automatically reply to the requesting host. Example: You typed in www.website.com, if you have a matching DNS record in your server, using an IP address, your server will reply and display the website.
