Hardware, because it is an item meant to be used on something else.
Answer:
A DNS Server
Explanation:
DNS (Domain Name Server) is a server or a computer that holds the records of IP addresses on the internet or any network with their associated names of hosts, the job of the DNS is to resolve the domain name to an ip address that corresponds to the requested name everytime there is a request on a particular domain name.
Answer:
True. Quality of service (QoS) is a suite of technologies that allows you to strategically optimize network performance for select traffic types.
No . A multiuser computer system does not run a network operating system