A SAN is not required in an organization. One would only use a SAN if the storage requirements dictated it. Most organizations that have large data storage requirements will use a SAN, not only for the large storage requirements but the ease of use of managing disks to different systems.
When a server has one IP address dedicated to itself then we call this IP address a dedicated IP. It is registered to one particular organization.
Subnet Mask.
An organization has decided to use IP addresses in the range 172.20.128.0 to 172.20.143.255. Which combination of network ID and subnet mask identifies all IP addresses in this range?
Check out iana.org
Private IP addresses
A DNS server.
The address of the Save Our Heritage Organization is: 2482 San Diego Ave, San Diego, CA 92110-2838
4 IP addresses. The hub does not require an IP address but the 4 devices connected to the hub do.
google search for subnet mask calculator:10.10.128.1 - 10.10.159.254 -- effective range10.10.128.0 is the marker IP10.10.129.255 is the broadcast IP.
It depends - check on the address you have been given in your organization.
ICANN
DHCP Gives four piece of information that are required in a network today. The four piece of information are IP address of computer , IP address of router , Subnet mask and IP address of name server. DHCP is a dynamic host configuration protocol and is backward compatible with BootP.